Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 164 for “"Bioprocess Engineering"”.
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Green Chemicals via Photosynthetic Microbial Factories: Integrating Metabolic and Bioprocess Engineering for 2-Phenylethanol Production and CO2 Valorization
L'abstract è presente nell'allegato / the abstract is in the attachment
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Optimizing xylitol production: a molecular and experimental study of xylose reductase in Candida tropicalis
… green chemistry principles and industrial bioprocess engineering, offering a cleaner, more efficient approach to xylitol production.
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Integrating Microbial Fuel Cells (MFCs) into the treatment of sulphate-rich wastewater
… being investigated within the Centre for Bioprocess Engineering Research (CeBER) (van Hille et al., 2015). This research involves the use of a Linear Flow Channel Reactor (LFCR) designed for combined biological sulphide reduction and sulphide oxidation to yield a sulphur product. Sulphate …
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Techno-Economic Evaluation of a Commercial c-Phycocyanin Extraction Process
… source for the production of cPC. The Centre for Bioprocess Engineering Research (CeBER) at the University of Cape Town (UCT) has patented a novel process for extracting and purifying cPC from Spirulina (Fagan-Endres et al., 2019). A manufacturer of raw materials for the cosmetics and consumer …
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Investigating variables affecting heap (bio)leaching through determining access to sub-surface mineral grains by micro-scale X-ray tomography
Heap bioleaching is a hydrometallurgical technology, used to facilitate the extraction of valuable metals such as copper, gold, nickel and uranium from low-grade, typically sulphidic, ores. The process is highly complex as it is influenced by interactions of different sub-processes including flow …
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Carbon dioxide mass transfer within algal raceway ponds and the potential for improvement using slopes to create wave
The growth of microalgae has the potential to be extremely useful for the production of a wide range of products or for specific processes, such as capture and cycling of CO₂. The fast micro-algal growth rates and ability to grow on agriculturally poor land and in waste water means that …
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A Comparative Analysis of the Performance and the Microbial Ecology of Biological Sulphate Reducing Reactor Systems
Acid rock drainage (ARD) is defined as acidic waste-water contaminated with sulphate and heavy metals which is generated through the oxidation of sulphidic ores in the presence of water and oxygen. Mining activities accelerate this process by bringing these ores to the surface where they are …
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The accuracy of linear flux models in predicting reaction rate profiles in a model biochemical reaction system
Metabolic flux analysis is commonly used in the modelling of biochemical reactions. The use of MFA models has gained large amounts of interest due to the simplicity of the computational procedures required for the model, and the exclusion of difficult to measure intracellular reaction data. There …
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Application of mineralogy in the interpretation of laboratory scale acid rock drainage (ARD) prediction tests : a gold case study
The mining and beneficiation of gold generates large tonnages of waste, with up to 99% of mined gold ore discharged as waste. The waste generated contains unoxidized sulfides that when exposed to air and water react to form acid, which results in acid rock drainage (ARD). ARD is usually associated …
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Mixing, mass transfer and energy analysis across bioreactor types in microalgal cultivation and lipid production
Microalgae are recognised as a source of lipids for bioenergy, nutrients and pharmaceuticals. Photobioreactors, closed vessels for microalgal cultivation, are known to have high energy consumption due to mixing and aeration. Sparging is commonly used for mixing and gas-liquid mass transfer in …
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Feasibility for value addition to sucrose in South Africa through conversion to platform chemicals
The world sugar price is constantly changing in response to supply and demand and is currently very low as compared to the prices it is sold at domestically in South Africa. The drop in the worldwide price of sugar is due to its oversupply as yields of sugar production have increased in recent …
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Desulphurisation flotation for the selective removal of pyrite from coal discards using microorganisms
Mineral beneficiation processes such as base metal and coal mining produce large amounts of waste rock and coal discards that contain significant quantities of sulphide minerals with Acid Rock Drainage (ARD) generating potential. ARD is caused by the exposure of sulphide minerals, primarily pyrite …
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Investigating process stresses on Saccharomyces cerevisiae using isothermal microcalorimetry
Maximising performance of microbial processes, including yeast-based processes, in an industrial setting requires understanding of the impact of process stresses. These may be the result of process configuration, dilution, temperature changes, hydrodynamic conditions or process perturbations. …
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