Masters Degrees (Process Engineering)
Recent Submissions
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The high-temperature pressure oxidation of a Witwatersrand pyrite concentrate
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: The oxidation of the pyrite present in gold and uranium ores is often desirable, to either liberate the gold present in the pyrite, or to generate iron(III) and acid for uranium extraction. The current ... -
Photo-fermentative treatment of wastewaters: surveying local sources and examining their treatment by Rhodopseudomonas palustris
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Owing to rapid industrialization, environmental pollution in the form of industrial wastewater is a growing concern. Additionally, global energy requirements are mostly dependent on fossil fuels and at ... -
Mechanistic and kinetic aspects of furfural degradation in dilute acidic media
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Furfural is a renewable platform chemical produced from lignocellulosic biomass. Many chemicals are derived from furfural including furfuryl alcohol, cosmetic ingredients & fragrances, flavour ingredients, ... -
Recovery of organic solvents from dewaxed oil mixtures using organic solvent nanofiltration technology
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Solvents are valuable chemicals, which are conventionally recovered through energy intensive processes such as distillation. In lube oil dewaxing processes, four times more solvent relative to solute is ... -
Modelling of enzymatic protein hydrolysis
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Enzymatic hydrolysis is a method which is used to produce nutritional supplements, aquaculture feed, plant fertilisers and food ingredients. Mathematical modelling of enzymatic protein hydrolysis is a ... -
Atmospheric acid leaching of oxidised and mixed copper cobalt ores mined in the Democratic Republic of the Congo
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Kamoto-Oliveira-Virgule (KOV) located in the Democratic Republic of the Congo, operates its mining operation on the north-western boundary of the approximately 350km long Congolese copper belt. This deposit ... -
Life cycle assessment of anaerobic digestion of cattle manure
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: The pressure on energy resources worldwide combined with the awareness of the major impact industrial processes have on the environment, triggers the development of alternative energy sources and methods ... -
Pyrolysis of waste polypropylene plastics for energy recovery: Investigation of operating parameters and process development at pilot scale
(2019-04)ENGLISH ABSTRACT: Polypropylene (PP) has been identified as the second most abundant plastic waste in landfills globally and the fastest growing plastic waste in South Africa. The increasing numbers have been attributed ... -
Process optimization and technoeconomics assessment of nematode biopesticide production
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Please refer to full text for abstract -
Development of an environmentally friendly lithium-ion battery recycling process
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: The main aim of this work was to evaluate the technical feasibility of using organic acids as lixiviants for Co, Li and Ni recovery from lithium-ion batteries (LIBs) and to recover the metals from the ... -
Evaluation and comparison of the ability of three industrially relevant adsorbents to remove alcohol contaminants from an alkane solvent
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Adsorption has been used successfully in many industries and has replaced the use of processes such as distillation in some cases. The adsorption process is influenced by many factors and its efficiency ... -
Triticale grain fermentation for production of bio ethanol and animal feed
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: High quantity of starch and relative high protein content, compared to other cereal grains, make triticale ideal as a feedstock for production of bioethanol and animal feed. It is mostly planted as feed ... -
Paper industry process wastewater reclamation and potential clarification from paper sludge through integrated bio-energy production
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: The paper and pulp industry is one of the major consumers of fresh water and as such produces large quantities of contaminated process water. However, with the recent drought crisis in South Africa, there ... -
Evaluating the economics of and business models for metal recycling from waste printed circuit boards in a South African context
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Electronic waste is the fastest growing component of solid municipal waste in South Africa however limited processing capacity exists in the country to economically recover metals from printed circuit ... -
Evaluation of waste tyre-derived char and crumb as adsorbents for gold recovery from acidic solutions
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Each year the number of vehicles is growing worldwide; therefore, the number of tyres is increasing at a faster rate daily. Tyres do not present a risk to the health on their own, the inappropriate disposal ... -
Comparative kinetics analysis of furfural production from xylan and xylose
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Furfural is a valuable platform chemical with a wide range of industrial applications. The replacement of petrochemicals with alternative bio furfural will reduce the overall carbon footprint of crude oil ... -
Anaerobic co-digestion of fruit juice industry wastes with lignocellulosic biomass
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: The fruit juice industry in South Africa forms an important part of the South African economy, however it generates large quantities of liquid and solid organic wastes. Landfilling is typically used to ... -
Kinetic evaluation of the production of Bacillus lipopeptides effective against Tuberculosis
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT:Tuberculosis (TB), caused by Mycobacterium Tuberculosis, is the second largest cause of death resulting from a single infectious agent globally. South Africa has one of the highest number of active TB cases ... -
A critical evaluation of the mass transfer and fouling behaviour in forward osmosis with integrated flow-reversal
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Forward osmosis (FO) is a membrane-based technology that can be operated at relatively low mechanical pressures and may be utilised in processes where water needs to be added or removed from process ... -
Evaluating the efficiency of a metal recycling process by means of life cycle assessment and exergy analyses
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Various recycling technologies for metal production from electronic waste (e- waste) have been proposed in literature. Traditionally, pyrometallurgical processes are employed to recover non-ferrous metals ...
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