All Staff

[ultimate_modal modal_title="Prof Guven Akdogan" modal_on="text" modal_on_align="left" read_text="Prof Guven Akdogan" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Mineral & Waste Processing

Short Bio

Prof Akdogan completed his PhD in Extractive Metallurgy at University of the Witwatersrand in 1992 and worked there as a Senior Lecturer at the School of Chemical and Metallurgy and Materials Engineering until 2003. He was awarded a WITS fellowship with Brunel University, London, during 2001 – 2002. In 2004 he moved to Element Six Pty (Ltd), De Beers and worked as a research manager in hard materials for oil-gas and metal applications until 2008 before he returned to academia at the Department of Process Engineering, Stellenbosch University, as an associate professor. Recently, he spent a period in USA working on mineral processing projects associated with INE at UA.

Research Interests

Mineral processing and extractive metallurgy, waste valorisation, and mine waste recycling.

Selected Publications

A list of his published works can be found on his Google Scholar profile.

Teaching

Mineral Processing 345 (Mineral Processing)
Mineral Processing 415 (Process Metallurgy)

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Mineral & Waste Processing
[ultimate_modal modal_title="Prof Chris Aldrich" modal_on="text" modal_on_align="left" read_text="Prof Chris Aldrich" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Extraordinary Professor

Short Bio

Education
• DEng (Extractive Metallurgy), Stellenbosch University, 2015
• PhD (Engineering), Stellenbosch University, 1993
• MEng (Extractive Metallurgical Engineering), Stellenbosch University, 1986
• BEng (Chemical Engineering), Stellenbosch University, 1982

Professional experience
• Head of Department
Department of Mining Engineering and Metallurgical Engineering, Western Australian School of Mines, Curtin University
2017-present

• Chair: Process Systems Engineering
Department of Mining Engineering and Metallurgical Engineering, Western Australian School of Mines, Curtin University
2012-present

• Departmental Chairman
Department of Process Engineering, Stellenbosch University
2010- 2011

• Professor (Process Systems Engineering)
Department of Process Engineering, Stellenbosch University
1999-2011 (Ad Hominem)

• Associate Professor (Process Systems Engineering)
Department of Process Engineering, Stellenbosch University
1996-1998 (Ad Hominem)

• Various positions in academic and industry (1984-1995)

Professional societies and academic boards
• Fellow of the South African Academy of Engineering
• Editorial Board Member: Minerals Engineering
• Associate Editor: Control Engineering Practice

Honours and awards
• British Association (S2A3) Silver Medal (2000). A single award that may be made annually to a person under the age of 40 who is active in scientific research and who has provided evidence by way of publications, discoveries and/or skills of outstanding capability and achieve¬ment, especially when measured by international standards.
• President’s Award of the Foundation of Research and Development (FRD) in South Africa for interna¬tional recognition of research (1995). This award is made annually to about 3 or 4 South Afri¬can aca¬de¬mics under the age of 35 in science, engineering and technology.
• Stellenbosch University Rector’s Award for Excellence in Research (2000, 2006).
• Researcher of the Year, Fa¬cul¬ty of Engineering, University of Stellenbosch (1995).
• Recipient of merit awards from the Faculty of Engineering for excellent service (2010, 2011).

Research Interests

• Artificial intelligence and machine learning
• Complex Systems
• Mineral processing
• Water treatment

Selected Publications

o Mpinga, C.N., Eksteen, J.J., Aldrich, C. and Dyer, L.G. 2017. Identification of the significant factors determining extractability of Ni and Cu after sulfation roasting of a PGM-bearing chromitite ore. Minerals Engineering (in press).
o Aldrich, C., Smith, L.K., Verrelli, D.I., Bruckard, W.J. and Kistner, M. 2017. Multivariate image analysis of a realgar-orpiment froth flotation system. Mineral Processing and Extractive Metallurgy Transactions C, published online, Available at http://www.tandfonline.com/eprint/WqtEXXsDBrytc9JdXYzS/full.
o Feng, C., Aldrich, C., Eksteen, J.J. and Arrigan, D. 2017. Removal of arsenic from alkaline process waters of gold cyanidation by use of Fe3O4@SiO2@TiO2 nanosorbents. Minerals Engineering, 110, 40-46.
o Hou, Y., Aldrich, C., Lepkova, K, Machuca, L.L. and Kinsella, B. 2016. Monitoring of carbon steel corrosion by use of electrochemical noise and recurrence quantification analysis. Corrosion Science 112, 63-72.
o Brink, S., Dorfling, C. and Aldrich C. 2016. An acoustic sensor for prediction of the structural stability of rock. International Journal of Rock Mechanics and Mining Sciences 85, 187–191.
o Heunis, T.-M., Aldrich, C. and de Vries, P.J. 2016. Recent advances in resting state electroencephalography biomarkers for autism spectrum disorder – a review of methodological and clinical challenges. Pediatric Neurology 61, 28–37.
o Krishnannair, S., Aldrich C. and Jemwa, G.T. 2016. Fault detection in process systems with singular spectrum analysis. Chemical Engineering Research and Design, 113, 151-168.
o Aldrich C., Uahengo F.D.L. and Kistner, M. 2015. Particle size estimation in hydrocyclone underflow streams by use of multivariate image analysis. Minerals Engineering, 70, 14-19.
o Groenewald, J.W. de V. and Aldrich, C. 2015. Root cause analysis of process fault conditions on an industrial concentrator circuit by use of causality maps and extreme learning machines, Minerals Engineering, 74, 30-40.
o Mpinga, C.N., Eksteen, J.J., Aldrich, C. and Dyer, L.G. 2015. Direct leach approaches to platinum group metal (PGM) ores and concentrates: A review. Minerals Engineering 78, 93-113.

Teaching

• Mining and Metallurgy MINE2001
• Particle Technology 314
• Materials Engineering 314

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Extraordinary Professor
[ultimate_modal modal_title="Prof Lidia Auret" modal_on="text" modal_on_align="left" read_text="Prof Lidia Auret" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Extraordinary Associate Professor

Short Bio

Prof Lidia Auret is the data scientist and process manager at Stone Three Digital (a digital productivity and workplace safety solutions provider) and an extraordinary associate professor at the Department of Process Engineering at Stellenbosch University.

Lidia's research interest is data analytics and machine learning methods applied to the challenge of process monitoring in industrial processes, specifically in mineral processing systems. Through collaborating with industrial funders (e.g. Anglo American Platinum, Glencore) and industry-state partnerships (e.g. SAMMRI – South African Mines to Metals Research Initiative), her research has focussed on the application of data analytics to industrial processes – a vital component of Industry 4.0 technologies.

Prof Auret is the author of 40 peer-reviewed publications, including papers in leading international journals such as Journal of Process Control and Chemometrics and Intelligent Laboratory Systems, as well as peer-reviewed international conference contributions, including for IEEE (Institute of Electrical and Electronics Engineers) and IFAC (International Federation of Automatic Control) conferences. Lidia has successfully mentored one postdoctoral fellow, supervised 2 PhD and 16 master's students, and currently supervises 2 PhD and 7 master's students.

Lidia is a member of the Southern African Institute of Mining and Metallurgy and the South African Statistical Association. She serves on the executive committee of the South African Council for Automation and Control. Lidia is the co-chair of the national organizing committee for the 18th IFAC Symposium on Control, Optimization and Automation in Mining, Mineral and Metal Processing. She also serves as reviewer for established journals like Control Engineering Practice, Minerals Engineering, and Journal of Southern African Institute of Mining and Metallurgy.

Research Interests

Overall theme: Process monitoring with applications in extractive metallurgy / mineral processing

  • Unsupervised machine learning techniques (random forests, artificial neural networks, kernel methods) as applied to process monitoring
  • Validation of statistical process monitoring techniques by means of real-world fault libraries and dynamic simulation of process systems
  • Enhancing process monitoring techniques by explicit inclusion of process knowledge (e.g. fundamental process model knowledge as well as fault type information inclusion through Bayesian networks and inference; post priori alarm classification knowledge inclusion for adaptive updating of process monitoring frameworks)
  • Optimal sensor location techniques based on data reconciliation methods
  • Computer vision applications in mineral processing systems (e.g. spiral concentrator interface detection, deep learning for froth flotation feature extraction)
  • Economic performance analysis concepts applied to process monitoring frameworks
  • Cost-benefit analysis of process monitoring, with specific application to mineral processing industries

Selected Publications

A complete list of her published works can be found on her Google Scholar profile.

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Extraordinary Associate Professor
[ultimate_modal modal_title="Prof Steven Bradshaw" modal_on="text" modal_on_align="left" read_text="Prof Steven Bradshaw" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Extractive metallurgy, metal recycling & machine learning

Short Bio

Education

PhD, University of the Witwatersrand, 1989
MScEng, University of Natal, 1985
BScEng, University of Natal, 1982

Professional experience

Professor
Department of Process Engineering, Stellenbosch University
2002 to present

Associate Professor
Department of Process Engineering, Stellenbosch University
1997 to 2002

Senior Lecturer
Department of Process Engineering, Stellenbosch University
1990 to 1997

Senior Researcher
Department of Process Engineering, Stellenbosch University
1989 to 1990

Honours, awards & memberships

Lecturer of the Year, 2016
Rector’s Award for Excellent Teaching, 1997 and 2010
The Engineer (UK) Technology and Innovation Award, 2008
EPSRC Visiting Fellowship, 2003, 2004 and 2005
Registered Professional Engineer (Engineering Council of South Africa)

Research Interests

Mineral processing
Microwave processing

Selected Publications

C. Dorfling, G. Akdogan, S.M. Bradshaw, J.J. Eksteen Modelling of an autoclave used for high pressure sulphuric acid/oxygen leaching of first stage leach residue, Part 1: Model development, Minerals Engineering, 53, 220-227, 2013

C. Dorfling, G. Akdogan, S.M. Bradshaw, J.J. Eksteen Modelling of an autoclave used for high pressure sulphuric acid/oxygen leaching of first stage leach residue, Part 2: Model application, Minerals Engineering, 53, 213-219, 2013.

S.W.P. Cloete, J.J. Eksteen and S.M. Bradshaw, Numerical Modelling Investigation into Design Variables Influencing Mixing Efficiency in Full Scale Gas Stirred Ladles, Minerals Engineering, 46-47, 16-24, 2013.

C. Dorfling, G. Akdogan, S.M. Bradshaw, J.J. Eksteen, Estimation of Rh, Ru, and Ir leaching kinetics during the sulfuric acid pressure leaching of Ni–Cu matte as a function of temperature, pressure, and acid concentration, Hydrometallurgy, Volume 138, June 2013, Pages 21-32

Bezuidenhout, G.A., Eksteen, J.J., Akdogan, G., Bradshaw, S.M., and de Villiers, J.P.R., Pyrometallurgical upgrading of PGM-rich leach residues from Western Platinum base metal refinery through roasting, smelting and alloy atomisation, Minerals Engineering, 53, 228-240, 2013

Mpinga, N., Bradshaw, S.M., Akdogan, G., Snyders, C.A., Eksteen, J.J., Evaluation of Merrill-Crowe process for the simultaneous removal of platinum, palladium and gold from cyanide leach solutions, Hydrometallurgy, 142, 36-46, 2014.

CN Mpinga, SM Bradshaw, G Akdogan, CA Snyders and JJ Eksteen, The extraction of Pt, Pd and Au from an alkaline cyanide simulated heap leachate by granular activated carbon, Minerals Engineering, 55, 2014, 11-17

M. Karimi, G. Akdogan, S. M. Bradshaw, A CFD-kinetic Model for the Flotation Rate Constant, Part I: model development, Minerals Engineering 69, 214-222, 2014.

M. Karimi, G. Akdogan, S. M. Bradshaw, A CFD-kinetic Model for the Flotation Rate Constant, Part II: model validation, Minerals Engineering 69, 205-213, 2014.

Snyders, C.A., Bradshaw, S.M., Akdogan, G., Eksteen, J.J., The effect of temperature, cyanide and base metals on the adsorption of Pt, Pd and Au onto activated carbon, Hydrometallurgy, 149, 132-142, 2014

Snyders, C.A., Bradshaw, S.M., Akdogan, G., Eksteen, J.J., Factors affecting the elution of Pt, Pd and Au from activated carbon, Mineral Engineering, 80, 14-24, 2015

CA Snyders, SM Bradshaw, G Akdogan, JJ Eksteen, Determination of the equilibrium and film diffusion constants of the platinum cyanide anions during the elution from activated carbon, Minerals Engineering, 80, 57-68, 2015

Charikinya, E., Bradshaw, S., Becker, M., Characterising and quantifying microwave induced damage in coarse particles, Minerals Engineering, 82, 14-24,2015

E. Schoeman, S.M. Bradshaw, G. Akdogan, C.A. Snyders J.J. Eksteen, The extraction of platinum and palladium from a synthetic cyanide heap leach solution with strong base anion exchange resins. Int J Min Proc, 162, 27-35, 2017

E. Schoeman, S.M. Bradshaw, G. Akdogan, C.A. Snyders J.J. Eksteen, The elution of platinum and palladium cyanide from strong base anion exchange resins, Int J Min Proc, 162, 19-26, 2017

Teaching

Chemical Engineering 426 (Process Control)

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Extractive metallurgy, metal recycling & machine learning
[ultimate_modal modal_title="Prof André Burger" modal_on="text" modal_on_align="left" read_text="Prof André Burger" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Separations Technology & Water Treatment

Short Bio

Prof. Burger is a professor of Chemical Engineering with a research focus on separation processes such as membrane separation, distillation and adsorption. He obtained a PhD (Engineering) in 1994, a MEng (Extractive Metallurgical Engineering) in 1986, and a BEng (Chemical Engineering) in 1983; all at Stellenbosch University. He has held various positions within the academia and the industry:

Jul 2018 - present, Nov 2011 – Jun 2014 & 2005 – 2009: Departmental Chairman, Department of Process Engineering, Stellenbosch University

2003 – present: Professor (Separations Technology), Department of Process Engineering, Stellenbosch University

1998 – 2003: Technical Director, Weir Envig (acquired by Veolia Water in 2004)

1996 – 1998: Engineering Manager, Weir Envig

1994 – 1996: Project Engineer, Weir Envig

1992 – 1994: Project Manager: Simulation, De Beers Research Laboratories

1990 – 1992: Senior Engineer: Mineral Processing, Mintek

1988 – 1989: Engineer: Mineral Processing, Mintek

1984 – 1985: Research Scholar, Mintek

Professional societies

Registered Professional Engineer (Engineering Council of South Africa);
Fellow of the South African Academy of Engineering;
Fellow of the Southern African Institute of Mining and Metallurgy;
Fellow of the Water Institute of South Africa;
Member of the South African Institute of Chemical Engineering and IChemE.

Honours and awards

Stellenbosch University Chancellor’s Award, 2019
Stellenbosch University Engineering Faculty Award as Lecturer of the Year, 2015
Stellenbosch University Rector’s Award for General Performance, 2014
Stellenbosch University Rector’s Award for General Performance, 2013
Stellenbosch University Rector’s Award for Community Interaction, 2009

Research Interests

Desalination and water treatment; Distillation hydrodynamics; Thermodynamics and phase-equilibria.

Prof Burger is a specialist in membrane-based desalination and water treatment. His related research is application-driven, focusing on the practical aspects of membrane fouling, energy consumption and efficiency. He also supervises research in thermal separation technology, specifically focussing on topics such as distillation hydrodynamics and phase-equilibria, as well as the associated underlying chemical thermodynamics.

Selected Publications

Visit my Google Scholar Profile for a complete list of my publications.

Teaching

Chemical Engineering 317 (Thermodynamics)
Chemical Engineering 224 (Fundamental Principles)

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Separations Technology & Water Treatment
[ultimate_modal modal_title="Prof Annie Chimphango" modal_on="text" modal_on_align="left" read_text="Prof Annie Chimphango" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Bioresources, waste valorisation, biorefineries & biomaterials

Short Bio

Education

• PhD (Chemical Engineering), Stellenbosch University, 2010
• MSc (Agricultural Engineering- Postharvest), McGill University, 1997
• BSc (Agriculture- Agric. Engineering) with Distinction, University of Malawi, 1992

Professional experience

2014 – present Senior lecturer Department of Process Engineering, Stellenbosch University
2008 – 2014 Lecturer Department of Process Engineering, Stellenbosch University
2001 – 2005 Project Manager Environmental Monitoring Group (EMG), Cape Town
1993 – 2000 Lecturer Department of Agricultural Engineering, University of Malawi
1992 – 1993 Assistant Manager/ Management Trainee Technical Department-Agribusiness Section, Lever Brothers Malawi LimitedUnilever, Malawi

Part time:

2003 – 2005: Planning, Monitoring and Evaluation (PME) Consultant C Masters Development Services (CMDS) professional services, Cape Town
May – Sept 2005: African facilitator/coordinator Sustainability Watch Network, Kampala, Uganda
10 – 12 Feb 2005: Consultant facilitator Yonge Nawe Environmental Action Group, Mbabane, Swaziland
15 – 19 March 2004: Local Consultant Mid-Term Evaluation for USAID funded Girls in the Vanguard (GIV) Salesian Project Office inSouthern Africa, Cape Town

Special Awards/Grants:

2015: Australian African Award, University of Sydney
2014: Rectors award General Performance- (Stellenbosch)
2008: Bursary- South African National Energy Research Institute (SANERI)
2007: Bursary: Centre for Renewable and Sustainable Energy Studies (CRSES). The Knut and Kringstad Award for best poster presentation 14thISWFPC
2006: Andrew Mellons Fellowship, Stellenbosch University Bursary: Department of Process Engineering Women in Science Award, Department of Science and Technology Postgraduate Merit Bursary for Foreign Students at Stellenbosch University

National and International Responsibilities:

• Reviewer of various International Journals,
• Member of the expert group for "DECC - Climate-KIC Global Calculator Expert Workshop (Land Use, Bioenergy, Food), Imperial College, UK ,
• Invited guest lecturer and Researcher- University of Campinas and University of Manchester.
• Visiting researcher Kwame Nkrumah University of Technology;
• External examiner for postgraduate theses
• Grant proposal reviewer locally and internationally

International and Local Collaborations and Associations:

• Supergen- University of Manchester;
• Newcastle University (UK), Kwame Nkrumah University of Technology (Ghana)
• Njala university (Sierra Leon)
• Jomo Kenyatta University of Technology (Kenya);
• University of Kwazulu Natal (SA)
• University of Venda (SA)
• EnsiacetToulose (France)
• Fibre and Paper Institute (Norway)
• Bioenergy- LACAf – University of Campinas (Brazil)
• Darmouth University (USA)

Research Interests

Bioresource engineering including biomass processing, bioprocess engineering, postharvest, sustainable bioenergy systems, and sustainable biometerials.
Research focus on developing efficient and environmentally sensitive methods of producing functional foods, bio-based products and bioenergy from agriculture, agro-process and industrial residues based on green engineering and green chemistry approaches. The specific research areas include:

Biomass processing – biorefineryapproach:

– Advanced lignocellulose fractionation methods for selective extraction of cellulose, hemicelluloses and lignin
– Tailor made fractionation methods to selectively isolate bioproducts and co-products with applications in feed and food processes to improve health and functional properties
– Development of integrated process for production of nano-celluloses and nano-hydrogels from agricultural and industrial wastes
– Synthesis of bioproducts with new functionalities from fractionation products
– Development of new biomass process configurations
– Physical and biochemical modification of structural and functionalities of biomaterials
– Production of soluble and insoluble fibres for functional and health foods.
– Co-production of bioenergy and high value products

Bioprocess engineering:

– Enzyme production and application in biopolymers
– Biomaterial modification and application as additives, entrapment matrices, slow release devices, flour replacers in baking and prebiotics

Sustainable bioenergy systems:

– Systems approach in integrated food and bioenergy systems
– Integration of renewable energy in postharvest technologies, thus, food processing and preservation technologies
– Systems dynamics for tracking and assessing sustainability of flow of bio-resources from agriculture and forestry

CURRENT PROJECTS

• Organic waste: a bioresource for production of novel cellulose nanocomposites- CSIR/DST 2016-2018
• Nanocellulose from Paper Sludge (PAMSA)- 2016-2017
• Inulin biorefinery for sustainable food production from Jerusalem artichoke. Research and Technology fund (RTF)- NRF-2014-2017
• Postharvest technology for sustainable livelihoods of small fresh produce producers in South Africa. Research and Technology fund (RTF)-NRF (2014-2016)
• Norway/South Africa SANCOOP Programme-Biorefineries for co-production of high value materials and bio-energy, as mitigationof climate change (BioCoPro) (2014-2016)
• Energy Efficient Rural Food Processing Utilising Renewable Energy to Improve Rural Livelihoods (New Castle University, Knust (Ghana), Njala University, (Sierra Leone), Jommo Kenyatta University (Kenya), Practical action (UK), Environmental Foundation for Africa (EFA) Sierra Leone and Kassel University) 2013-2015

STUDENT SUPERVISION

• Current: 6 PhDs, 4 MEng and 1 Post Doc
• Graduated: 1 PhD, 7 MSc

Selected Publications

A list of her published works can be found on her Google Scholar profile.

Teaching

Biology 324
Environmental Engineering 442 and 454
Heat Transfer A326

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Bioresources, waste valorisation, biorefineries & biomaterials
[ultimate_modal modal_title="Dr Francois Collard" modal_on="text" modal_on_align="left" read_text="Dr Francois Collard" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Postdoctoral Fellow

Short Bio

Postdoctoral Researcher
Department of Process Engineering, Stellenbosch University,
2014-2017

PhD (Process Engineering and Sustainable Development)
University of Technology of Compiègne (UTC)
2012

PhD (Process Engineering / Chemical Catalysis), Biomass, Energy and Biofuel Laboratory
International Institute for Water and Environmental

Engineering (2iE) Ouagadougou
2012

MSc (Agro-resource reactivity)
ENSIACET Toulouse
2003

Research Interests

Pyrolysis conversion of lignocellulosic biomass into fuel and chemical products

Pyrolysis conversion of waste mixtures (fibres, plastic, etc.) into fuels

Selected Publications

Collard, F.-X., Carrier, M. & Görgens, J.F., 2016. Chapter 4 – Fractionation of Lignocellulosic Material With Pyrolysis Processing. In Biomass Fractionation Technologies for a Lignocellulosic Feedstock Based Biorefinery. pp. 81–101.10.1016/B978-0-12-802323-5.00004-9.

Mundike, J., Collard, F.-X. & Görgens, J.F., 2016. Torrefaction of invasive alien plants: Influence of heating rate and other conversion parameters on mass yield and higher heating value. Bioresource Technology, 209, pp.90–99. 10.1016/j.biortech.2016.02.082.

Gottumukkala, L.D. et al., 2016. Opportunities and prospects of biorefinery-based valorisation of pulp and paper sludge. Bioresource Technology, 215.10.1016/j.biortech.2016.04.015.

Ridout, A.J. et al., 2016. Energy conversion assessment of vacuum, slow and fast pyrolysis processes for low and high ash paper waste sludge. Energy Conversion and Management, 111, pp.103–114.10.1016/j.enconman.2015.12.043.

Collard, F.-X. et al., 2015. Influence of impregnated iron and nickel on the pyrolysis of cellulose. Biomass and Bioenergy, 80, pp.52-62. 10.1016/j.biombioe.2015.04.032.

Nsaful, F. et al., 2015. Lignocellulose pyrolysis with condensable volatiles quantification by thermogravimetric analysis—Thermal desorption/gas chromatography–mass spectrometry method. Journal of Analytical and Applied Pyrolysis, 116, pp.86–95.10.1016/j.jaap.2015.10.002.

Collard, F.-X. & Blin, J., 2014. A review on pyrolysis of biomass constituents: Mechanisms and composition of the products obtained from the conversion of cellulose, hemicelluloses and lignin. Renewable and Sustainable Energy Reviews, 38, pp.594–608. 10.1016/j.rser.2014.06.013.

Collard, F.-X. et al., 2012. Influence of impregnated metal on the pyrolysis conversion of biomass constituents. Journal of Analytical and Applied Pyrolysis, 95, pp.213–226. 10.1016/j.jaap.2012.02.009.

Elyounssi, K. et al., 2012. Improvement of charcoal yield by two-step pyrolysis on eucalyptus wood: A thermogravimetric study. Fuel, 96, pp.161-167.10.1016/j.fuel.2012.01.030.

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Postdoctoral Fellow
[ultimate_modal modal_title="Dr Jamie Cripwell" modal_on="text" modal_on_align="left" read_text="Dr Jamie Cripwell" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Thermodynamic modelling & thermophysical property measurement

Short Bio

Lecturer
Department of Process Engineering, Stellenbosch University
2018 - Present

Postdoctoral Research Fellow
Host: Prof. Andre Burger
Department of Process Engineering, Stellenbosch University
Development of fundamental thermodynamic models for industrial application
2017-2018

PhD Chem Eng
Improvement of the thermodynamic description of polar molecules and their mixtures in the SAFT framework
Department of Process Engineering, Stellenbosch University
Supervisors: Prof. Andre Burger & Prof Cara Schwarz
2014-2016

MEng (Research)
Assessment of the capabilities of two polar sPC-SAFT terms through application to measured ketone-alkane phase equilibria data
Department of Process Engineering, Stellenbosch University
Supervisors: Prof. Andre Burger & Prof Cara Schwarz
2012-2013

BSc Eng (Chemical)
School of Chemical & Metallurgical Engineering, University of the Witwatersrand
2008-2011

Research Interests

Thermodynamic modelling
Statistical Associating Fluid Theory (SAFT)
Low pressure phase equilibria (VLE, LLE, VLLE)

Selected Publications

A list of his published works can be found on his Google Scholar profile.

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Thermodynamic modelling & thermophysical property measurement
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Postgraduate & Research Manager
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Postgraduate & Research Manager
[ultimate_modal modal_title="Ms Danielle de Klerk" modal_on="text" modal_on_align="left" read_text="Ms Danielle de Klerk" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Thermodynamics & low pressure phase-equilibria

Short Bio

Danielle de Klerk was appointed as Junior Lecturer at the Department of Process Engineering in August 2019. She is busy completing her postgraduate studies with a research focus on the thermodynamics and phase equilibria of quaternary systems. She completed her BEng in Chemical Engineering (Cum Laude) at Stellenbosch University.

Research Interests

Low pressure phase equilibria:
Vapour-Liquid Equilibria
Liquid-Liquid Equilibria
Vapour-Liquid-Liquid Equilibria
Thermodynamic Modelling

Teaching

Engineering Chemistry 123
Chemical Engineering D356 (Experimental design and report writing)

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Thermodynamics & low pressure phase-equilibria
[ultimate_modal modal_title="Dr Sefakor Dogbe" modal_on="text" modal_on_align="left" read_text="Dr Sefakor Dogbe" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Bioresource Engineering, Process development & Exergy-based methods

Short Bio

Education
PhD (Chemical Engineering), Stellenbosch University (2020)
BSc (Chemical Engineering), Kwame Nkrumah University of Science and Technology (KNUST) (2008)

Professional Experience
2020 – present: Postdoctoral fellow, Department of Process Engineering, Stellenbosch University, South Africa
2012 – 2015: Teacher, Department of Science, Akatsi Senior High Technical School, Akatsi, Ghana
2008 – 2009: Teaching assistant, Department of Chemical Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, Ashanti, Ghana

Research Interests

Exergy analysis and exergy-based methods
Process simulation and development
Waste heat recovery systems
Techno-economic assessment of biorefineries

Selected Publications

Visit my Google Scholar Profile for a complete list of my publications.

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Bioresource Engineering, Process development & Exergy-based methods
[ultimate_modal modal_title="Prof Christie Dorfling" modal_on="text" modal_on_align="left" read_text="Prof Christie Dorfling" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Hydrometallurgy, metal recycling & process modelling

Short Bio

Christie started his career as an engineer in the Measurement and Control Division at Mintek before joining the Department of Process Engineering at Stellenbosch University as a lecturer. His research interests in hydrometallurgy include characterisation and modelling of leaching systems, recovery of base and precious metals from leach solutions, and development of processes for metal recovery from low grade ores and secondary resources.

Research Interests

Hydrometallurgy, metal recycling, process modelling

Selected Publications

A list of his published works can be found on his Google Scholar profile.

Teaching

Thermodynamics A224
Mineral Processing 345
Chemical Engineering 224 (Principles and Processes)
Chemical Engineering 254 (Mass and Energy Balances)

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Hydrometallurgy, metal recycling & process modelling
[ultimate_modal modal_title="Prof Jacques Eksteen" modal_on="text" modal_on_align="left" read_text="Prof Jacques Eksteen" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Extraordinary Professor

Short Bio

  • Education
    • PhD (Engineering), Stellenbosch University, 2004
    • MEng (Extractive Metallurgical Engineering), Stellenbosch University, 1995
    • BEng (Chemical Engineering – Mineral Processing), Stellenbosch University, 1993
  • Professional experience
    • Professor Extraordinary
      Department of Process Engineering, Stellenbosch University
      2007 to present
    • Professor (Chair: Metallurgy)
      Curtin University, Australia
      2012 to present
    • Manager: Gold Technology Group
      Curtin University, Australia
      2012 to present
    • Associate Professor
      Department of Process Engineering, Stellenbosch University
      2006 to 2007
    • Senior Lecturer
      Department of Process Engineering, Stellenbosch University
      1998 to 2006
    • Process Engineer
      Atomic Energy Corporation, Pelindaba
      1995 to 1996
  • Honours & Awards
    • 2006: Nomination for Rector’s Award for Excellence in Teaching (Stellenbosch University).
    • 2006: SAIChE / Chemical Technology Award for Innovation in Chemical Engineering.
    • 2003: Upcoming Researcher of the Year (Stellenbosch University).

Research Interests

  • Thermodynamics and kinetics of pyro- and hydrometallurgical processes.
  • Sampling, measurement, control and data reconciliation.
  • Process design and development.
  • Process modelling.
  • Computational fluid dynamics modelling.

Selected Publications

  • Thyse, E. L., Akdogan, G., Olivier, E. J., O’Connell, J. H., Neethling, J. H., Taskinen, P., & Eksteen, J. J. (2013). 3D insights into nickel converter matte phases: Direct observations via TEM and FIB SEM tomography. Minerals Engineering, Article in press.
  • Olivier, M. C., Dorfling, C., & Eksteen, J. J. (2012). Evaluating a solvent extraction process route incorporating nickel preloading of cyanex 272 for the removal of cobalt and iron from nickel sulphate solutions. Minerals Engineering, 27-28, 37-51.
  • Mwase, J. M., Petersen, J., & Eksteen, J. J. (2012). Assessing a two-stage heap leaching process for platreef flotation concentrate. Hydrometallurgy, 129-130, 74-81.
  • Mwase, J. M., Petersen, J., & Eksteen, J. J. (2012). A conceptual flowsheet for heap leaching of platinum group metals (PGMs) from a low-grade ore concentrate. Hydrometallurgy, 111-112(1), 129-135.
  • McDougall, I., & Eksteen, J. J. (2012). Sidewall design to improve lining life in a platinum smelting furnace. Paper presented at the TMS Annual Meeting, 47-54.
  • Bezuidenhout, G. A., Davis, J., Van Beek, B., & Eksteen, J. J. (2012). Operation of a concentrated mode dual-alkali scrubber plant at the Lonmin smelter. Journal of the Southern African Institute of Mining and Metallurgy, 112(7), 657-665.
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Extraordinary Professor
[ultimate_modal modal_title="Dr Somayeh Farzad" modal_on="text" modal_on_align="left" read_text="Dr Somayeh Farzad" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Bioprocess Engineering & Life-cycle assessment

Short Bio

Education

  • PhD (Chemical Engineering), Tarbiat Modares University, 2012
  • MSc (Chemical Engineering), Sharif University, 2005
  • BEng (Chemical Engineering), Tehran University, 2002

 

Professional Experience

  • Postdoctoral Researcher
    Department of Process Engineering, Stellenbosch University
    2014 - present
  • Assistant Professor
    Chemical Engineering Faculty, University of Environment (Iran)
    2012 - 2014 
  • R&D Manager
    Mabna Energy Renovation and Reclamation Consultants Co.
    2010 - 2013
  • Senior Process Engineer
    Mabna Energy Renovation and Reclamation Consultants Co.
    2005 - 2010

Research Interests

  • Process simulation and development
  • Biomass processing for the production of fuels and chemicals
  • Biomass processing for production of green rubber
  • Gasification of biomass

Selected Publications

A list of her published works can be found on her Google Scholar profile.

[/ultimate_modal]
Bioprocess Engineering & Life-cycle assessment
[ultimate_modal modal_title="Dr Mohammadreza Fatahi" modal_on="text" modal_on_align="left" read_text="Dr Mohammadreza Fatahi" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Mineral Processing, Process Numerical Modelling & Simulation

Short Bio

Education

PhD (Mining Engineering), Tehran University, 2017
MSc (Mining Engineering), Tehran University, 2011
BEng (Mining Engineering), Tehran University, 2009

Professional Experience

Postdoctoral Researcher
Department of Process Engineering, Stellenbosch University
2019 – Present

Project Manager & Head of Mining and Mineral Processing Department
Noyan Industrial and Mineral Research Center
2019 - 2020

Project Engineer
Feyz Gohar Zagros Company
2018-2019

Supervisor of Lateritic Nickel Mine
Ghadir (Investment Company)
2015 – 2016

Project Engineer
R&D Expert and Manager
Jahan Nemov (Mining and Industrial Company)
2012 – 2015

Senior Process Engineer
Daneshfaravaran (Engineering Company)
2011 - 2012

Research Interests

Numerical modelling and simulation of multiphase and particulate flows in mineral processing systems design,
Execute, supervise and control the basic and detailed mineral processing studies for all metallic, non-metallic and industrial minerals in all areas including crushing, grinding, classification, physical separation, flotation and hydrometallurgy from bench scale to semi-industrial scale.

Selected Publications

A list of his published works can be found on his Google Scholar Profile.

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Mineral Processing, Process Numerical Modelling & Simulation
[ultimate_modal modal_title="Prof Neill Goosen" modal_on="text" modal_on_align="left" read_text="Prof Neill Goosen" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Biorefineries, Bio-feedstock valorisation & Water-energy-food nexus
Download CV |

Short Bio

Prof Goosen obtained his undergraduate and Master’s degrees in Chemical Engineering at Stellenbosch University, before relocating to the United Kingdom for two years where he worked at a consulting company in the mining and minerals industry. In 2010 he returned to Stellenbosch University to commence his PhD studies, and in 2013 he took up a permanent position at the Department of Process Engineering. He is currently appointed as the Director for the ARUA Centre for Excellence in Energy and is Associate Professor in the Department of Process Engineering.

Research Interests

Dr Goosen’s overall research philosophy is to apply his skills for the betterment of South Africa and the society we live in, through excellent and relevant research, and through the training and development of exceptional engineers. His research has a strong interdisciplinary focus and he frequently collaborates with the disciplines of Agriculture and basic sciences to define and solve particular problems, and to find applications for the products and processes developed by his research group. Particular research interests include valorisation of agricultural and food processing by-products, and extraction of valuable compounds from bio-substrates. Two relevant projects that are currently under way are 1) development of value-added products from fish processing by-products, with the aim of improving the sustainable utilisation of fisheries resources, and 2) developing environmentally and economically sustainable processes that use seaweeds as raw material, by applying biorefinery principles.

Selected Publications

A list of his published works can be found on his Google Scholar profile.

Teaching

Engineering Chemistry 123
Chemical Engineering 264 (fluid mechanics)

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Biorefineries, Bio-feedstock valorisation & Water-energy-food nexus
[ultimate_modal modal_title="Prof Johann Görgens" modal_on="text" modal_on_align="left" read_text="Prof Johann Görgens" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Biorefineries, techno-economics & bioprocessing

Short Bio

Johann F. Görgens is a professor in chemical engineering with over 20 years’ experience in bioenergy/biomass projects in industry and academia. Prof Görgens holds a PhD in Chemical Engineering and an MBA degree, both from Stellenbosch University. He acts as the director of Centre for Process Engineering at Stellenbosch University, coordinating a wide range of research collaborations with public and private funders.

His research focus is on the development of process technologies for conversion of biomass and wastes into valuable products, in a manner that is practical, affordable and sustainable, thereby resulting in sustainable processes. His multidisciplinary approach to research has included participation as a core member in the Research Chair in Biofuels/BioEnergy (CoER) at Stellenbosch University, which addresses a range of chemical/thermochemical/biological process technologies for biomass and wastes conversion. Contributions from his research group to the CoER include kilogram-scale process development and technology assessments through simulation studies. Simulations allow comparative assessment of process technologies in terms of conversion efficiencies, economic viability and (life-cycle) environmental impacts, providing a comprehensive method to select preferred processes through sustainability. The scope of end-products includes various bio-energy options, as well as multiple food, feed, chemicals and materials that can be produced for the valourisation of organic and carbonaceous wastes. Integration of experimental at kilogram scale with simulation development has created an excellent basis to identify preferred technologies for local implementation.

Research Interests

Biochemical conversion of biomass and organic wastes into fuels and chemicals
Pyrolysis processing of biomass and organic/carbonaceous wastes
Biorefineries for foods, fuels and chemicals from biomass and organic wastes
Bioprocess development with microbial and enzymatic systems

Selected Publications

Visit my Google Scholar Profile for a complete list of my publications.

Teaching

Thermodynamics A214
Heat Transfer A326
Postgraduate short course in Bio-energy, presented annually in September together with the Centre for Renewable and Sustainable Energy Studies
Shortcourses for Biotech and Food industries in Aseptic processing and Good Manufacturing Practise, presented annually

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Biorefineries, techno-economics & bioprocessing
[ultimate_modal modal_title="Prof Dale Gyure" modal_on="text" modal_on_align="left" read_text="Prof Dale Gyure" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Extraordinary Associate Professor

Short Bio

  • Education
    • PhD (Chemical Engineering), University of Colorado, 1984
    • MSc (Chemical Engineering), University of Colorado, 1981
    • BSc (Chemical Engineering), Ohio State University, 1977
  • Professional experience
    • Division Head of Manufacturing
      National Bioproducts Institute, Durban, KZN
      2010 to present (pharmaceutical manufacturing)
    • Executive Portfolio Manager
      EcoBio Innovation Center (LIFElab), Durban, KZN
      2006 to 2010 (investment management in biotechnology)
    • Adjunct Associate Professor
      Department of Chemical and Biological Engineering, Tufts University, Boston, Massachusetts
      2000 to 2006 (lecturing and undergraduate teaching)
    • Principal Consultant
      BioProducts International, Boston, Massachusetts
      1996 to 2006 (independent consulting)
    • Operations Manager
      AECI Bioproducts (Pty) Ltd, Amanzimtoti, KZN
      1994 to 1996 (industrial biotechnology)
    • Group Leader for Bioengineering
      ZeaGen, Inc, Golden, Colorado
      1985 to 1993 (industrial biotechnology)
    • Process Engineer
      E.I.DuPont & Company, Wilmington, Delaware
      1977 to 1979 (chemicals manufacturing)
  • Professional societies
    • Registered Professional Engineer (Engineering Council of South Africa, Reg No 20070145)
    • Member of South African Institute of Chemical Engineers
    • International Society for Pharmaceutical Engineers
  • Honours and awards
    • Presidential Discovery Award, ZeaGen, 1989
    • Visiting Professor, South China Institute of Technology, Guangzhou, P.R.China, 1986
    • University Doctoral Fellow, University of Colorado, 1983

Research Interests

  • Aseptic Processing
  • Industrial Biotechnology and Bioprocessing

Selected Publications

  • Gyure, D.C., “Novel Photobioreactor” US Patent Application, US2009/0130704, May, 2009
  • Gyure, D.C., “Fantastic Fermented Foods”, Chemical Technology, August, 2008
  • Gyure, D.C., Biodiesel Purification”, SA Patent 2009/02834, priority date April, 2008
  • Gyure, D.C., “Set Realistic Goals for Cross-flow Filtration”, Chemical Engineering Progress, 88:60, 1992.
  • Gyure, D.C. and Lauderdale, “Method of Recovery of Riboflavin”, US Patent 5,103, 005, 1990.
[/ultimate_modal]
Extraordinary Associate Professor
[ultimate_modal modal_title="Ms Nicole Hartzenburg" modal_on="text" modal_on_align="left" read_text="Ms Nicole Hartzenburg" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Faculty Secretary
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Faculty Secretary
[ultimate_modal modal_title="Prof Hansie Knoetze" modal_on="text" modal_on_align="left" read_text="Prof Hansie Knoetze" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Emeritus Professor

Short Bio

Education
PhD (Eng), Stellenbosch University, 1990
BEng (Chemical Engineering), Stellenbosch University, 1977

Professional experience

Emeritus Professor
Department of Process Engineering, Stellenbosch
2019 - Present

Dean
Faculty of Engineering,Stellenbosch
2012 to 2017

Vice-Dean (Teaching)
Faculty of Engineering,Stellenbosch
2011 to 2012

Acting Dean of Engineering
Faculty of Engineering,Stellenbosch
2009

Deputy-Dean (Teaching)
Faculty of Engineering,Stellenbosch
2006 to 2008

Professor
Department of Process Engineering, Stellenbosch
1998 to 2018

Departmental Chairman
Department of Process Engineering, Stellenbosch
1997 and 2002 to 2004

Associate Professor
Department of Chemical Engineering, Stellenbosch
1994 to 1998

Senior Lecturer
Department of Chemical Engineering, Stellenbosch
1983 to 1994

Senior Engineer; Section Head: Double-Base Propellants and Project Manager: Ground-to-air missiles
Kentron-South
1981 to 1983

Engineer; Group Head: Double-Base Propellants
Kentron-South
1979 to 1981

Engineer-in-Training
Kentron-South
1978 to 1979

Honours and awards
Rector’s Award for Excellence in Teaching, University of Stellenbosch, 2008
Elected fellow of South African Academy of Engineers, 2007
Lecturer of the Year award, Faculty of Engineering, University of Stellenbosch, 2004
Rector’s Award for Excellence in Teaching, University of Stellenbosch, 1998

Research Interests

Separation technology
Distillation
Supercritical extraction
Thermodynamics
Rocket propulsion
Biofuels
Process modelling
Thermal processing of biomass
Coatings

Selected Publications

    Rousseau C.W., Knoetze J.H.(2010). “Calculating an Admittance Function from Pulsed Tubular Grain Motor Tests.” Journal of Propulsion and Power 26(5) (2010) 998-1005.

    Carrier, M.,Hugo, T., Gorgens, J.F. and Knoetze J.H., “Comparison of slow and vacuum pyrolysis of sugar cane bagasse,” Journal of Analytical and Applied Pyrolysis 90 (2011) 18–26

    Leibbrandt N.H., Knoetze J.H., Görgens J.F. “Comparing biological and thermochemical processing of sugarcane bagasse: An energy balance perspective” Biomass and Bioenergy 35 (5), p.2117, May 2011

    G.J.K. Bonthuys, C.E. Schwarz, A.J. Burger, J.H. Knoetze, Separation of alkanes and alcohols with supercritical fluids. Part I. Phase equilibria and viability study, J. Supercrit. Fluids, 57 (2011) 101-111.

    M. Zamudio, C.E. Schwarz, J.H. Knoetze, Phase Equilibria of Branched Isomers of C10-alcohols and C10 alkanes in Supercritical Carbon Dioxide, J. Supercrit. Fluids 59 (2011) 14-26.

[/ultimate_modal]
Emeritus Professor
[ultimate_modal modal_title="Carla Latsky" modal_on="text" modal_on_align="left" read_text="Carla Latsky" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Thermodynamics & Phase Equilibria

Short Bio

2020 – present: Postdoctoral Research Fellow in the Separation Technology Research Group at the Department of Process Engineering at Stellenbosch University

2016 – 2019: PhD in Chemical Engineering at Stellenbosch University

2011 – 2015: BEng (Chemical Engineering) degree at Stellenbosch University

Research Interests

Thermodynamics
Phase equilibria
Thermodynamic modelling
Supercritical fluid fractionation

Selected Publications

A list of her published works can be found on herGoogle Scholar profile.

[/ultimate_modal]
Thermodynamics & Phase Equilibria
[ultimate_modal modal_title="Prof Leon Lorenzen" modal_on="text" modal_on_align="left" read_text="Prof Leon Lorenzen" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Extraordinary Professor

Short Bio

  • Education
    • PhD (Engineering), Stellenbosch University, 1993
    • MScEng (Metallurgical Engineering), Stellenbosch University, 1985
    • BEng (Chemical Engineering), Stellenbosch University, 1982
    • Post Graduate Diploma – Executive Development Programme, Stellenbosch University Business School, 1998
  • Professional experience
    • Professor Extraordinary in Mineral Processing
      Stellenbosch University, Process Engineering Department
      September 2008 to present
    • Visiting Professor in Metallurgical Engineering
      Western Australian School of Mines, Curtin University, Perth
      January 2013 to present
    • Studies Manager/Director
      Mintrex, Subiaco, Western Australia
      2013 to present
    • Group General Manager and Executive Consultant – Metallurgy, Innovation and Research
      Snowden Group, Perth
      December 2009 to 2013
    • Innovation Project Manager
      BHP Billiton Nickel West, Stainless Steel Materials (SSM), Perth
      February 2009 to November 2009
    • Metallurgy Manager
      BHP Billiton, Stainless Steel Materials (SSM), Perth Technology Centre
      September 2008 to February 2009
    • Professor, Chairman, Deputy Dean, Acting Dean
      Stellenbosch University, Department of Process Engineering
      July 1995 to August 2008
    • Senior Lecturer, Associate Professor
      Stellenbosch University, Department of Process Engineering
      July 1990 to June 1995
    • Senior Engineer
      Somchem (Pty) Ltd
      October 1988 to June 1990
    • Senior Plant Metallurgist, Plant Production Superintendent
      Anglo American Corporation – Freegold (Ops) Ltd, Pres. Brand Gold Mine, J.M.S. Uranium Plant
      August 1987 to September 1988
    • Research Metallurgist
      Anglo American Research Laboratories
      January 1983 to July 1987
  • Professional societies
    • Fellow of the South African Institute of Mining and Metallurgy (FSAIMM)
    • Fellow of the South African Institution of Chemical Engineers (FSAIChE)
    • Fellow of the Institute of Chemical Engineers (British) (FIChemE)
    • Fellow of the South African Academy of Engineering (FSAAE)
    • Fellow of the Australasian Institute of Mining and Metallurgy (FAusIMM)
    • Member of the Institution of Engineers Australia (MIEAust)
    • Registered as a Professional Engineer in South Africa (PrEng)
    • Registered as a Chartered Engineer with the British Engineering Council (CEng)
    • Registered with Professional Chartered Engineer with the Institution of Engineers Australia (CPEng)
  • Honours and awards
    • Best paper at the Second International Conference on Hydrometallurgy (ICHM ’92), China (1992)
    • Evaluated as a B category researcher by the NRF in South Africa
    • Researcher of the Year, Faculty of Engineering, University of Stellenbosch (1996)
    • Lecturer of the Year, Faculty of Engineering, University of Stellenbosch (1999)
    • Vice-Chancellor’s Award for Excellence in Research, University of Stellenbosch (2002)
    • SAIMM Silver Medal for the best journal article published in South African Institute of Mining and Metallurgy (SAIMM) Transaction Papers (2005)
    • Co-author of best poster paper at Mineral Processing 2006, Cape Town, South Africa
    • Co-author of best poster paper at South African Institute of Chemical Engineers, Research and Development Symposium, Cape Town (2007)
    • Authored papers have been awarded one of the Minerals Engineering Top 25 papers (2011 and 2012)
    • Authored paper has been awarded one of the Chemical Engineering Top 25 papers (2007)

Research Interests

  • Mineral processing
  • Electrochemistry
  • Reactive systems
  • Hydrometallurgy
  • Waste treatment
  • Biofuels

Selected Publications

  • Musee, N. and Lorenzen, L. (2013), Market dynamics as a driver towards research needs evolution: a case of up-flow anaerobic sludge blanket seeding granules, WaterSA, Volume 39(1).
  • Lorenzen, L., Barnard, M.J. (2011), Why is mineralogical data essential for designing a metallurgical test work program for process selection and design? GeoMet 2011 – 1st AusIMM International Geometallurgy Conference 2011, pp. 163-172.
  • Daramola, M.O., Burger, A.J., Pera-Titus, M., Giroir-Fendler, A., Miachon, S., Dalmon, J.-A., Lorenzen, L. (2010), Separation and isomerization of xylenes using zeolite membranes: A short overview, Asia-Pacific Journal of Chemical Engineering, Volume 5(6), pp. 815-837.
  • Daramola, M.O., Deng, Z., Pera-Titus, M., Giroir-Fendler, A., Miachon, S., Burger, A.J., Lorenzen, L., Guo, Y. (2010), Nanocomposite MFI-alumina membranes prepared via pore-pugging synthesis: Application as packed-bed membrane reactors for m-xylene isomerization over a Pt-HZSM-5 catalyst, Catalysis Today, Volume 156(3-4), pp. 261-267.
  • Daramola, M.O., Burger, A.J., Giroir-Fendler, A., Miachon, S., Lorenzen, L. (2010), Extractor-type catalytic membrane reactor with nanocomposite MFI-alumina membrane tube as separation unit: Prospect for ultra-pure para-Xylene production from m-Xylene isomerization over Pt-HZSM-5 catalyst, Applied Catalysis A: General, Volume 386(1-2), pp. 109-115..
  • Daramola, M.O., Burger, A.J., Pera-Titus, M., Giroir-Fendler, A., Lorenzen, L., Dalmon, J.-A. (2010), Xylene vapor mixture separation in nanocomposite MFI-alumina tubular membranes: Influence of operating variables, Separation Science and Technology, Volume 45(1), pp. 21-27.
[/ultimate_modal]
Extraordinary Professor
[ultimate_modal modal_title="Dr Tobi Louw" modal_on="text" modal_on_align="left" read_text="Dr Tobi Louw" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Process modelling & monitoring

Short Bio

Education

PhD in Chemical and Biomolecular Engineering (University of Nebraska-Lincoln, 2013, cum laude)

B.Eng in Chemical Engineering (University of Pretoria, 2007, cum laude)

Appointments

Senior Lecturer and Undergraduate Programme Coordinator: Stellenbosch University, Dept. of Process Engineering; January 2019 - present

Senior Lecturer: University of Stellenbosch, Dept. of Process Engineering; January 2016 - December 2018

Lecturer: University of Stellenbosch, Dept. of Process Engineering; May 2015 - December 2015

Postdoc: University of Cape Town, Dept. of Chemical Engineering; August 2013 - April 2015

Scholarly activities and awards

Grand Challenges Africa grant: Principle investigator on the use of machine learning in antimicrobial resistance surveillance.

Active collaborations in international research projects with a focus on urban wastewater profiling.

Multiple industry-funded projects in process monitoring, modelling and optimization.

Stellenbosch University, Engineering Faculty’s “Upcoming Researcher of the Year”, 2019.

National Research Foundation Y2-rated researcher.

Member of the South African Society of Engineering Education, South African Council for Automation and Control, Water Institute of Southern Africa and International Water Association.

Research Interests

Process modelling, monitoring and control, with an emphasis on advances in machine learning. Recent projects include:
• Statistical modelling of micropollutants in river networks
• Statistical modelling of the prevalence of antimicrobial resistance
• Machine learning for process monitoring and control in the minerals processing industry
• Fluid dynamics, mass transfer, and reaction kinetics for (bio)catalytic alkane activation

Selected Publications

A list of his published works can be found on his Google Scholar profile.

Teaching

• Particle Technology 316
• Chemical Engineering 344 (Modelling and Optimization)

[/ultimate_modal]
Process modelling & monitoring
[ultimate_modal modal_title="Dr Carla Louw" modal_on="text" modal_on_align="left" read_text="Dr Carla Louw" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Antimicrobial Resistance & Machine Learning

Short Bio

Carla Louw completed her PhD in Biochemistry at Stellenbosch University. Her current research involves the use of statistical and machine learning techniques to develop novel antimicrobial resistance monitoring techniques. This project is funded by Grand Challenges Africa, in collaboration with the Medical Research Council and the Bill & Melinda Gates Foundation.

Research Interests

Biochemistry
Bioinformatics
Antimicrobial Resistance
Machine Learning

Selected Publications

A list of her published works can be found on her Google Scholar profile.

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Antimicrobial Resistance & Machine Learning
[ultimate_modal modal_title="Dr Wildu Malan" modal_on="text" modal_on_align="left" read_text="Dr Wildu Malan" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Pyrometallurgy and thermodynamic modelling

Short Bio

Dr Malan has been appointed as a postdoctoral fellow at the Department of Process Engineering since 2020.

PhD (Metallurgical Engineering), University of Pretoria, 2019

MSc (Chemical Engineering), Stellenbosch University , 2014

BEng (Mining Engineering), Stellenbosch University, 2011

Research Interests

Pyrometallurgy (dynamic and static equilibration experiments)
Thermodynamic modelling of metal and oxide systems using FactSage
Numerical modelling of multiphase flows in mineral processing
Hydrometallurgy (leaching, solid extraction, electrowinning etc) from bench scale to semi-industrial scale.

Selected Publications

Visit my Google Scholar profile for a complete list of my publications.

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Pyrometallurgy and thermodynamic modelling
[ultimate_modal modal_title="Prof Sampson Mamphweli" modal_on="text" modal_on_align="left" read_text="Prof Sampson Mamphweli" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Bioenergy & waste valorisation

Short Bio

Professor Ntshengedzeni Sampson Mamphweli completed his PhD in Physics, focusing on biomass gasification, at the University of Fort Hare in 2010. He also holds a Master's degree in Environmental Sciences from the University of Venda.

He previously worked for the South African National Parks, the University of Cape Town, and Institute of Technology at the University of Fort Hare, before joining Stellenbosch University in 2017. He is currently a Professor in the Department of Process Engineering, and he is seconded to serve as the Director of the Centre for Renewable and Sustainable Energy Studies (CRSES).

Research Interests

• Bioenergy (gasification, pyrolysis and biogas digesters)
• Waste valorisation

Selected Publications

A list of his published works can be found on his Google Scholar profile.

Teaching

Although Prof Mamphweli does not currently have a teaching load due to his work as Director of CRSES, he does give lectures on Bioenergy.

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Bioenergy & waste valorisation
[ultimate_modal modal_title="Dr Mohsen Mandegari" modal_on="text" modal_on_align="left" read_text="Dr Mohsen Mandegari" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Process Development, Techno-Economics, Energy & Exergy

Short Bio

    Education

      PhD (Chemical Engineering), Tarbiat Modares University, 2012
      MSc (Chemical Engineering), Tarbiat Modares University, 2007
      BEng (Chemical Engineering), Persian Gulf University, 2002

     

    Professional Experience

      Postdoctoral Researcher
      Department of Process Engineering, Stellenbosch University
      2014 - present

      Assistant Professor
      Mazandaran University of Science and Technology
      2013 - 2014 

      Engineering Manager
      Shargan Consultant Engineering Co.
      2010 - 2014

      Project Engineer
      Iran International General Contractor Co. (IGC)
      2008-2010

      R&D Manager
      Pajan Petro Sazeh Co.
      2007 - 2008

      Senior Process Engineer/ Energy Auditor
      Mabna Energy Renovation and Reclamation Consultants Co.
      2004 - 2007

      Research Interests

        Techno-economic evaluation of biorefineries
        Process simulation and development
        Energy recovery and optimization
        Desiccant systems

      Selected Publications

      A list of his published works can be found on his Google Scholar profile.

      [/ultimate_modal]
      Process Development, Techno-Economics, Energy & Exergy
[ultimate_modal modal_title="Mr Zwonaka Mapholi" modal_on="text" modal_on_align="left" read_text="Mr Zwonaka Mapholi" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Bioresources, photocatalysis & coal gasification

Short Bio

Zwonaka Mapholi was appointed as Junior Lecturer at the Department of Process Engineering in January 2020. He is busy completing his doctoral degree in Chemical Engineering with a research focus on recovery of HVP from plant biomass and synthesis of biofuels. Previously, he completed his BSc Eng (Chemical) degree at the University of the Witwatersrand's School of Chemical and Metallurgical Engineering.

Research Interests

Bioresource Engineering (recovery of HVP from plant biomass and synthesis of biofuels)
Applications of "power ultrasound"
Photocatalysis
Coal gasification technology

Teaching

Chemical Thermodynamics (CE 317) (Assistant)

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Bioresources, photocatalysis & coal gasification
[ultimate_modal modal_title="Ms Neo Motang" modal_on="text" modal_on_align="left" read_text="Ms Neo Motang" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
High pressure equilibria & supercritical fractionation

Short Bio

Education
MEng (Chemical Engineering), Stellenbosch University, 2015
BEng (Chemical Engineering), Stellenbosch University, 2013

Professional Experience
2020 - Present: Junior Lecturer: Department of Process Engineering, Stellenbosch University
2016 – 2020: Lecturer (Khula): Department of Chemical Engineering, Cape Peninsula University of Technology

Research Interests

High pressure phase equilibria
Supercritical fluid fractionation
Mass transfer

Selected Publications

A list of her published works can be found on her Google Scholar profile.

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High pressure equilibria & supercritical fractionation
[ultimate_modal modal_title="Prof Izak Nieuwoudt" modal_on="text" modal_on_align="left" read_text="Prof Izak Nieuwoudt" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Extraordinary Professor

Short Bio

  • Education
    • PhD (Engineering), Stellenbosch University, 1994
    • MEng (Extractive Metallurgical Engineering), Stellenbosch University, 1989
    • BEng (Chemical Engineering), Stellenbosch University, 1986
  • Professional experience
    • Director: Research & Development
      Koch-Glitsch, Wichita, USA 
      September 2003 to present
    • Professor, Associate Professor, Senior Lecturer
      Department of Process Engineering, Stellenbosch University
      April 1995 to August 2003
    • Senior Process Engineer, Senior Process Engineer Grade I
      SASTECH (Division of SASOL LTD.)
      November 1993 to March 1995
    • Design Engineer
      Universal Oil Products (UOP), Chicago, USA 
      October 1992 to October 1993
    • Senior Process Engineer, Process Engineer, Assistant Process Engineer
      SASTECH (A division of SASOL LTD.)
      March 1989 to October 1992
    • Research Assistant
      University of Stellenbosch, Chamber of Mines Contract
      January 1987 to February 1989
  • Honours & Awards
    • 2012: Koch Industries Environmental, Health & Safety Excellence award.
    • 2002: Alexander von Humboldt Stipend to do research in Germany.
    • 2001: Listed in Marquis Who’s who in Science and Engineering.
    • 2001: DAAD Scholarship to do research in Germany.
    • 2001: Ad hominen promotion to Full Professor on the basis of research outputs.
    • 2000: University of Stellenbosch Lecturer of the year award for excellence in undergraduate teaching.
    • 1999: Ad hominem promotion to Associate Professor on the basis of research outputs.
    • 1999: Awarded University of Stellenbosch medal as one of the researchers of the year.
    • 1993: Sent to USA by Sasol on basis of being identified as an engineer with good potential.
    • 1992: Sastech (Sasol) award for technical achievement in developing extractive distillation processes.

Research Interests

  • Distillation and extraction
  • Solvent driven separations
  • Supercritical fluid processing
  • Thermodynamics

Selected Publications

  • Du Rand, M., Nieuwoudt, I., Schwarz, C.E. & Knoetze, J.H. 2012, “A practical equation of state for non-spherical and asymmetric systems for application at high pressures. Part 1: Development of the pure component model”, Canadian Journal of Chemical Engineering, vol. 90, no. 3, pp. 584-596.
  • Du Rand, M., Nieuwoudt, I., Schwarz, C.E. & Knoetze, J.H. 2012, “A practical equation of state for non-spherical and asymmetric systems for application at high pressures. Part 2: Extension to mixtures”, Canadian Journal of Chemical Engineering, vol. 90, no. 3, pp. 597-611.
  • Nieuwoudt, I. 2011, “Exploiting the synergy between liquid extraction and other solvent driven separations”, 11AIChE – 2011 AIChE Annual Meeting, Conference Proceedings.
  • Nieuwoudt, I. 2011, “Tray efficiency of SUPERFRAC(TM) high-performance trays in C2 splitter service”, Hydrocarbon Asia, Apr-Jun 2011, pp. 64-68.
  • Nieuwoudt, I. & Quotson, P. 2011, “INTALOX ULTRA random packing – Pushing the envelope”, 11AIChE – 2011 AIChE Spring Meeting and 7th Global Congress on Process Safety, Conference Proceedings.
  • Schwarz, C.E., Nieuwoudt, I. & Knoetze, J.H. 2010, “Additional pilot plant measurements with incorporation of reflux for the fractionation of wax derivatives with supercritical propane”, Industrial and Engineering Chemistry Research, vol. 49, no. 9, pp. 4462-4467.
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Extraordinary Professor
[ultimate_modal modal_title="Ms Sunel Nortjé" modal_on="text" modal_on_align="left" read_text="Ms Sunel Nortjé" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Thermodynamics, sustainability & the environment

Short Bio

Education

  • BEng (Chemical Engineering), Stellenbosch University, 2008

Professional experience

  • Lecturer
    Department of Process Engineering, Stellenbosch University
    2013 to present
  • Consultant in sustainability, climate change, reduction of greenhouse gas emissions and energy efficiency
    Deloitte &Touche
    2011 to 2012
  • Consultant in sustainability, climate change and reduction of greenhouse gas emissions
    Promethium Carbon
    2009 to 2011

Research Interests

Thermodynamic Modelling
Sustainability and Environmental Engineering
Energy efficiency and reduction of greenhouse gas emissions

Teaching

Thermodynamics
Mass and Energy Balances
Environmental Engineering

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Thermodynamics, sustainability & the environment
[ultimate_modal modal_title="Dr Benjamin A. Oyegbile" modal_on="text" modal_on_align="left" read_text="Dr Benjamin A. Oyegbile" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Postdoctoral Fellow

Short Bio

Dr. Oyegbile holds a PhD in Environmental Science and is currently a recipient of the prestigious NRF-TWAS Postdoctoral research fellowship at the Process Engineering department, Stellenbosch University, South Africa. Prior to this current position, he was involved in the reasearch activities at the Chair of Minerals Processing, Brandenburg University of Technology, Cottbus, Germany and holds a faculty position at the department of Civil and Environmental Engineering, Elizade University, Ilara-Mokin, Nigeria.

Research Interests

His research interest revolves around fine particle separation using physicochemical processes—wet agglomeration, agglomeration/flocculation reactor design and optimization as well as experimental and computational modelling of the hydrodynamics of fine particle separation. His futute career plan is to deepen his research skills in his core research areas and help in the training of future generation of professionals in the field of Environmental Process Engineering.

Selected Publications

A list of his published works can be found on his Google Scholar profile.

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Postdoctoral Fellow
[ultimate_modal modal_title="Dr Abdul Petersen" modal_on="text" modal_on_align="left" read_text="Dr Abdul Petersen" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Postdoctoral Fellow
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Postdoctoral Fellow
[ultimate_modal modal_title="Prof Lingam Pillay" modal_on="text" modal_on_align="left" read_text="Prof Lingam Pillay" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Water/wastewater treatment & reuse & membrane technology

Short Bio

Prof Pillay obtained his BSc (Eng), MSc (Eng) and PhD (Chemical Engineering) from the University of Kwazulu Natal (UKZN). He then joined the Pollution Research Group, Department of Chemical Engineering, as a Senior Research Fellow at UKZN. Prof Pillay then moved to the Department of Chemical Engineering, ML Sultan Technikon (now Durban University of Technology), and was charged with the task of initiating research and developing a research culture in the department. In 2013, Prof Pillay joined the Department of Process Engineering, Stellenbosch University.

Research outputs include 25 publications in peer reviewed journals, 21 contract research project reports, 3 patents, and numerous presentations at local and international conferences. He has supervised / co-supervised 29 masters and 2 doctoral graduates.

Research Interests

Prof Lingam Pillay’s research is in the field of water and wastewater treatment and reuse, with a particular emphasis on membrane technology, and technologies for developing economies.  The focus is strongly on technology development and application.  One of the technology outputs, the VulAmanz Rural Water Filter is currently being demonstrated at 1 000 rural households around South Africa, and a company has been set up to drive its commercialisation.

Current research interests include:

  • Potable water provision, with a particular focus on developing economies and rural communities;
  • Donnan Dialysis for aluminium and iron recovery from water treatment residuals;
  • Reclamation and reuse of industrial effluents, agricultural processing wastewaters, and fishing industry wastewaters;
  • Electrochemical disinfection; and
  • Immersed membrane bioreactors.

Selected Publications

Pillay, V.L, Cele, M.X., Deelie, M., Development of a woven fabric immersed membrane bioreactor (WFIMBR) package plant for decentralized sanitation, WRC Project K5/2287/2016 (www.wrc.org.za)

Alfa, D., Rathilal, S., Pillay, V.L., Pikwa, K.,  and Chollom, M.N., Development and evaluation of a small scale water disinfection system, Journal of Water, Sanitation and Hygiene for Development, 06.3, 2016, DOI: 10.2166/washdev.2016.093

Maipato,  I.T., Rathilal, S., Pillay, V.L., Evaluation of flux stabilisation using Bio-UF membrane filter on KZN Rivers, South Africa, Membrane Water Treatment, Vol. 7, No. 4 (2016) 313-325, DOI: http://dx.doi.org/10.12989/mwt.2016.7.4.313

Chollom, M.N., Rathilal, S., Pillay, V.L., and Alfa, D., The applicability of nanofiltration for the treatment and reuse of textile reactive dye effluent, Water SA Vol. 41 No. 3 April (2015), ISSN 1816-7950

Xaba, P., Rathilal, S. and Pillay, L., Reclamation of end-of-pipe textile effluent using low energy membrane systems, South African Journal of Chemical Engineering, vol. 20, 2015, no. 2, pp. 69-79

Pillay, V.L., Rietveld, L., Vallabh, S., Munnik, V. and Wilson, Implementation strategies for a rural water treatment system, SANPAD Project 10/97, (2014)

Metcalf G; Pillay L; Murutu C; Chiburi S; Gumede N; Gaydon PN, Wastewater reclamation for potable reuse Volume 1: Evaluation of membrane bioreactor technology for pre-treatment; 2014/07/01; Research Report No.1894/1/14 (www.wrc.org.za)

Metcalf G; Pillay L; Murutu C; Chiburi S; Gumede N; Gaydon PN, Wastewater reclamation for potable reuse Volume 2: Integration of MBR technology with advanced treatment processes; 2014/07/01; Research Report No.TT 611/14 (www.wrc.org.za)

Mecha, C.A., Otieno, F.A.O. and  Pillay, V.L., Long ISSN 1816-7950 (On-line)-term disinfection performance of silver nanoparticles impregnated membranes, Desalination and Water Treatment, DOI:10.1080/19443994.2014.996778 (2014)

Jacobs, E.P., Bradshaw, S.M., Brika, B., Verster, I.H. and Pillay, V.L., Floating media flocculation as pre-treatment for capillary ultrafiltration in drinking water treatment, WRC Report No: 1527/1/12, ISBN No: 978-1-4312-0110-5 (2012)

Teaching

Particle Technology 316

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Water/wastewater treatment & reuse & membrane technology
[ultimate_modal modal_title="Prof Robbie Pott" modal_on="text" modal_on_align="left" read_text="Prof Robbie Pott" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Biofuels, bioreactors & waste beneficiation

Short Bio

Education

• PhD (Chemical Engineering) , University of Cambridge, 2013
• BSc (Hons) (Chemical Engineering), University of Cape Town, 2008

Professional experience

2021 - Present: Associate Professor, Department of Process Engineering, Stellenbosch University
2018 – 2020: Senior Lecturer, Department of Process Engineering, Stellenbosch University
2015 – 2017: Lecturer, Department of Process Engineering, Stellenbosch University
2014 – 2015: Postdoctoral research fellow (Claude Leon Fellowship), Department of Chemical Engineering, University of Cape Town
2014: Assistant lecturer, Department of Chemical Engineering, University of Cape Town
2009: Research Assistant, Department of Chemical Engineering, University of Cape Town

Honours and awards

• Stellenbosch University Teaching award, 2019
• Regional winner of the IOM3 Young Persons Lecture competition, 2014
• PhD prize: Department of Chemical Engineering and Biotechnology, University of Cambridge, 2012
• Dow Sustainability Innovation Student Challenge Award: Department of Chemical Engineering and Biotechnology, University of Cambridge, 2011

Research Interests

Bioprocess engineering
Biofuels
Waste beneficiation
Biorefineries

Selected Publications

A list of his published works can be found on his Google Scholar profile.

Teaching

Fluid Mechanics 264
Engineering Chemistry 123
Research Design & Expertise (RDE)

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Biofuels, bioreactors & waste beneficiation
[ultimate_modal modal_title="Prof Cara Schwarz" modal_on="text" modal_on_align="left" read_text="Prof Cara Schwarz" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Thermodynamics & separations at high & low pressures

Short Bio

Prof. Schwarz is an associate professor of Chemical Engineering with a focus on thermodynamics and separation processes.

She holds a BEng (Chemical Engineering) (1999), an MScEng (Chemical Engineering) (2001) and a PhD (Chemical Engineering) (2005), all from Stellenbosch University. Following the completion of her studies, Prof. Schwarz furthered her research career at Stellenbosch University as a post-doctoral fellow (2006 to 2010) and later as a Senior Researcher (2011 to 2015). As of 2018 she holds the position of full professor. Additionally, Prof. Schwarz is a registered professional engineer and holds a C1 NRF rating. Prof Schwarz has also recently (2018) been included in the Journal of Chemical & Engineering Data's top 25 "Emerging Investigators" in chemical thermodynamics.

Through her career Prof. Schwarz has received numerous awards including:

  • C1 NRF rating, 2016
  • Dean’s Medal for upcoming researcher of the year in Faculty of Engineer, 2011
  • Y1 National Research Foundation Rating in 2010.
  • 2006 L'Oreal Fellowship for Women in Science – Material Sciences Award. National award for best doctoral research in the area of material science for graduates in 2005/2006.
  • Best Ph.D in Department of Process Engineering, 2005
  • Best Masters Thesis in Department of Chemical Engineering (presently known as Department of Process Engineering) in 2001
  • Best final year student for Bachelor of Engineering, Chemical Engineering in 1999

Currently Prof. Schwarz has a total of 62 publications in international peer-reviewed journals, an h-index of 14, according to Scopus, and her publications have been cited over 500 times. She has attended 24 national and international conferences where she has contributed to 100 publications, 5 of which were keynote or invited lectures.

Prof. Schwarz has successfully supervised/co-supervised 4 PhD and 11 Masters students and is currently supervising/co-supervising 6 PhD and 6 Masters students.

Research Interests

Prof. Schwarz is a specialist on thermal separations technology and the associated underlying chemical thermodynamics. Her research foci are understanding phase equilibria and other fundamental properties with the aim of improving the understanding of how these properties influence separation processes such as distillation and extraction. In particular, she has a keen in high pressure phase equilibria and supercritical fluid extraction and fractionation, and how to understand and predict these systems.

Currently Prof. Schwarz’s main research foci are:

  • High pressure phase equilibria measurement and thermodynamic modelling of asymmetric systems
  • Supercritical fluid extraction/fractionation of high molecular mass hydrocarbons
  • Low pressure phase equilibria measurement and thermodynamic modelling of complex organic systems
  • Heterogeneous azeotropic distillation for application in dehydration of alcohols
  • Adsorption for product purification of hydrocarbons and waste stream clean-up

Selected Publications

A list of her published works can be found on her Google Scholar profile.

Teaching

Chemical Engineering 317 (Chemical Thermodynamics)

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Thermodynamics & separations at high & low pressures
[ultimate_modal modal_title="Ms Samantha Starling" modal_on="text" modal_on_align="left" read_text="Ms Samantha Starling" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Undergraduate Officer
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Undergraduate Officer
[ultimate_modal modal_title="Dr Margreth Tadie" modal_on="text" modal_on_align="left" read_text="Dr Margreth Tadie" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Minerals Processing, electrochemistry & tailings management

Short Bio

Education

PhD (Chemical Engineering) University of Cape Town – (2015)

MSc (Chemical Engineering) University of Kwa-Zulu Natal – (2014)

BEng (Chemical Engineering) National University of Science and Technology – (2008)

Professional experience

Lecturer: Department of Process Engineering, Stellenbosch University
2016

Post-Doctoral Research Fellow – Centre for Minerals Research (UCT)
Centre for Minerals Research, University of Cape Town
2015

Honours and awards

International Mineral Processing Congress Best Young Author Award, IMPC Santiago Chile,2014

Faculty of Engineering and the Built Environment Research Award, UCT, 2015
Research Associateship, UCT, 2013

Research Interests

Mineral processing and extractive metallurgy

Surface and interfacial properties of minerals in industrial processes

Application of electrochemical technology to industrial processes and the study of redox systems.

Selected Publications

A list of her published works can be found on her Google Scholar profile.

Teaching

Engineering Chemistry 123

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Minerals Processing, electrochemistry & tailings management
[ultimate_modal modal_title="Dr Kim Trollope" modal_on="text" modal_on_align="left" read_text="Dr Kim Trollope" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Postdoctoral Fellow

Short Bio

Education
PhD (Microbiology), Stellenbosch University 2015
MSc cum laude (Institute for Wine Biotechnology), Stellenbosch University 2006
BSc Honours cum laude (Institute for Wine Biotechnology), Stellenbosch University 2003
BSc (Natural Sciences), Stellenbosch University 2002

Professional Experience
2018 – present: Postdoctoral fellow, Department of Process Engineering, Stellenbosch University
2015 – 2017: Postdoctoral fellow, Department of Microbiology, Stellenbosch University
2007 – 2010: Research Assistant, Department of Process Engineering, Stellenbosch University

Awards and Grants
2015 – 2017: NRF Innovation Postdoctoral Fellowship
2011: L’Oreal-UNESCO For Women in Science Regional PhD Fellowship for sub-Saharan Africa

Research Interests

Yeast biotechnology
Enzymology
Molecular biology
Biofuels
Waste valorisation

Selected Publications

A list of her published works can be found on her Google Scholar profile.

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Postdoctoral Fellow
[ultimate_modal modal_title="Prof Johan van Dyk" modal_on="text" modal_on_align="left" read_text="Prof Johan van Dyk" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Extraordinary Professor
Download CV |

Short Bio

Professional Background

Johan van Dyk is an internationally recognised expert on carbon management, coal chemistry and a renowned coal gasification specialist. Johan’s professional career developed over almost two decades at Sasol Technology, where his in-depth knowledge and keen scientific know-how has rocketed him into the highest ranks as a technical group leader at Sasol Technology’s Research and Development Unit.

His technical background, scientific experience and international R&D track record support his current role from September 2013 as Technology Manager at Africary where he will push for the successful commercialisation of the UCG mining process by ensuring a cost effective, energy efficient implementation and operation of the Theunissen UCG project.

Starting from 1995 he held the chair as Chief Scientist over the Sasol Gasification R&D function and by the time of his departure at the end of 2013, Prof van Dyk managed the ultimate position of Technical Lead for Sasol Gasification R&D Coal Science. His leadership and keen insights help Sasol optimise its world class gasification systems as he develops the characterisation parameters for successful gasification and simulation tools for efficient coal utilisation. Johan has been the coal technical lead for several Sasol Coal-to-Liquid project evaluation studies and is the go-to guy for quick and technical to-the-point answers.

Education

PhD (Minerals Engineering)
2006
North-West University, Potchefstroom
Thesis: Manipulation of gasification coal in order to increase the ash fusion temperature of the coal to operate the gasifiers at higher temperatures

M.Sc. (Minerals Engineering)
1999
University of the Witwatersrand (WITS), Johannesburg
Thesis: Thermal Fragmentation of Coal Sources for Gasification SCI

Hons. B.Sc. (Chemistry)
1995
North-West University, Potchefstroom

B.Sc. (Chemistry)
1994
North-West University, Potchefstroom

Professional Memberships

Technical Advisory Member to the Minister of Energy and Department of Energy, South-Africa
Extraordinary Professor, Stellenbosch University
Associate Professor, North West University, Potchefstroom
International Vice-Chair and Board Member for International Pittsburgh Coal Conference
ISO and SABS Technical Advisory and Referee Member
Advisory Board Member for Virthucon, Freiberg University, Germany, from 2009
Member of the Coal Processing Society of South Africa
Member and Treasurer of the South African Underground Coal Gasification Association
Reviewer for ELSEVIER (FUEL, Fuel Processing, Energy and Fuels, etc.)
Program Coordinator, Pittsburgh Coal Conference: Gasification
Postgraduate supervisor, Stellenbosch University
Postgraduate supervisor, North-West University

Industry Expertise

Coal and coal mining resources
Gasification
Biomass
Carbon feedstock interpretation
Energy and power
R&D and project management

Publications and Awards

>100 International refereed papers and publications
International University of Pittsburgh Award for Innovation in Coal Utilization, in recognition of his outstanding leadership and innovation in coal and gasification conversion.

Research Interests

In his illustrious international career Johan has worked extensively on all major developments relating to coal, biomass, energy and gasification projects. In 2016 Johan received the International University of Pittsburgh Award for Innovation in Coal Utilization, in recognition of his outstanding leadership and innovation in coal and gasification conversion.

Selected Publications

Van Dyk, JC, Collins, AC and Muehlen, P., IMPORTANCE OF MINERAL MATTER SIMULATION AND UNDERSTANDING IN GASIFIER TECHNOLOGY SELECTION, GTT Technologies Users Seminar, Aachen, Germany, 25-29 June 2018.

Van Dyk, JC and Brand JF, UCG APPLICATION OPPORTUNITIES FOR THE POLYGENERATION OF POWER AND FUELS, Syngas Technologies Conference, USA, October 2017.

Van Dyk, JC, Brand,Waanders, FB, IN-SITU CO2 CAPTURE DURING AN UCG PROCESSBY SIMULATING POSSIBLE CO2 ADSORPTION ON ROOF AND COAL MINERAL STRUCTURES, 34th Interntional Pittsburgh Coal Conference, Pittsburgh USA, 5-8 September 2017.

Van Dyk, JC, J Brand, FB Waanders, AC Collins, THERMO CHEMICAL SIMULATION OF A COAL GASIFICATION PROCESS (APPLYING WASTE CAPTURED CO2 EITHER FROM COMBUSTION OR GASIFICATION), 19th GTT Workshop, Aachen, Germany, June 2017.

International University of Pittsburgh Award for Innovation in Coal Utilization, in recognition of his outstanding leadership and innovation in coal and gasification conversion. Presented at the 33rd International Pittsburgh Coal Conference, Cape Town, 12 August 2016.

JC van Dyk, J Brand, BB Beamish, RS Whitney and TP Levi, SPONTANEOUS COMBUSTION ASSESMENT OF A COAL RESERVE PLANNED FOR UNDERGROUND COAL GASIFICATION UTILIZATION, 7th International Freiberg Conference, Inner Mongolia China, 8-12 June 2015.

Aboyade, W, Knoetze, J, Gorgens, J and Van Dyk, JC, IMPACT OF CO-GASIFICATION AND AGRICULTURAL WASTES ON CONDENSATE PRODUCTION IN UPDRAFT GASIFIERS, 29th International Pittsburgh Coal Conference, USA, 17 October 2013.

Van Dyk, J.C., Aldrich, C., ONLINE ANALYSIS OF COAL ON A CONVEYOR BELT BY USE OF MACHINE VISION AND KERNEL METHODS, Production tracking number: GCOP 517486, International Journal of Coal Preparation and Utilization, Vol. 30, p. 331-348, June 2010.

A. Luckos, M.N. Shaik, and J.C. van Dyk "Gasification and pyrolysis of coal", Handbook of Combustion, M. Lackner, F. Winter, A.K. Agarwal (Eds), vol. 4: Solid fuels, pp. 325-364, Wiley-VCH, Weinheim, 2010.

Van Dyk, J.C., Aldrich, C., ONLINE ANALYSIS OF COAL ON A CONVEYOR BELT BY USE OF MACHINE VISION AND KERNEL METHODS, Pittsburgh International Coal Conference, September 2009.

Van Dyk, JC, Coal-to-liquids: The Sasol Experience, CHEMCHON 2006, India, 2006, (invited plenary presentation).

Van Dyk, J.C., Coal-to-liquids: The Sasol Experience, ELECTRIC POWER Conference, May 2007, Chicago, USA (presentation at Coal-to-Liquids workshop).

Reinecke, CF and Van Dyk, J.C., Coal Gasification: The experience of Sasol Technology, Energy and Coal of Russia, February 2006 (invited plenary presentation presented on behalf of Chris Reinecke)

18th Low-Rank Fuels Symposium, 2003, USA, Suitability of feedstocks for the Sasol-Lurgi Fixed Bed Dry Bottom Gasification Process, JC van Dyk*/MJ Keyser/JW van Zyl. (paper and presentation)

17th INTERNATIONAL PITTSBURGH COAL CONFERENCE 2000, Pittsburgh, USA, Full Scale Sasol/Lurgi Fixed Bed Test Gasifier Project: Experimental Design and Test Results: Experimental Design and Test Results, MJ Keyser*, JC van Dyk. (presentation, award for best technical paper).

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Extraordinary Professor
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Fermentation systems, Bioprocess development & Bioenergy from waste

Short Bio

Eugéne van Rensburg is an industrial microbiologist and holds a PhD in Microbiology from the University of the Free State and an MBA degree from Stellenbosch University. He joined the Department of Process Engineering as a postdoctoral fellow in 2008 and later as senior researcher in 2013. He was appointed as senior lecturer in 2019.

Research Interests

Eugéne’s main research interests include (i) bioprocess development with emphasis on fermentation systems and associated up- and downstream processing where microbes and their products are exploited for commercial gain, (ii) biomass processing and extraction of valuable products, and (iii) energy generation from agricultural, bioprocessing and industrial wastes. He seeks to integrate these foci in a multidisciplinary approach where bio-based technologies can be applied to address the Food-Energy-Water Nexus triple challenge within the context of sustainable development in rural Africa.

Selected Publications

A list of his published works can be found on his Google Scholar profile.

Teaching

Chemical Engineering 424 (Bioprocessing)
Short course in Statistics and Design of Experiments (DOE)

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Fermentation systems, Bioprocess development & Bioenergy from waste
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Hydrometallurgy, PGM recovery & metals recycling

Short Bio

Mr van Wyk has been employed as a lecturer inthe Process Engineering Department (Stellenbosch University) since 2014. His undergraduate responsibilities include lecturing the first year introductory course Engineering Chemistry and one of the core modules of the degree program, Mass and Energy Balances.

He holds a BEng (Chemical Engineering) (2011), and a MEng (Extractive Metallurgical Engineering) (2014), both from Stellenbosch University, and is currently enrolled part-time for a PhD, titled “A dynamic model for the atmospheric leaching of PGM-containing Ni-Cu-Fe-S Pierce Smith Converter matte”, under the supervision of Prof Steven Bradshaw.

Mr van Wyk is a member of the Southern African Institute of Mining and Metallurgy (SAIMM).

Research Interests

Mr van Wyk’s main research interests are in the broad field of mineral processing and extractive metallurgy, with a more specific focus on hydrometallurgical extraction processes within the context of the Southern African mining sector. This includes the fundamental understanding of leaching processes, primarily in the precious metal industry, and the dynamic modelling and simulation thereof. He, furthermore, has an interest in gold extraction and recovery, especially the treatment of complex low-grade ores.

Selected Publications

A list of his published works can be found on his Google Scholar profile.

Teaching

Engineering Chemistry 123
Chemical Engineering 254 (Mass and Energy Balances)
Design Project 488

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Hydrometallurgy, PGM recovery & metals recycling