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Theses and Dissertations (Chemical Engineering): Recent submissions
Now showing items 21-40 of 343
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(University of Pretoria, 2023)Malaria is a major economic and medical burden in countries where it is endemic. The world health organization (WHO) recommends indoor residual spraying (IRS) of insecticides and sleeping under insecticide treated nets ...
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(University of Pretoria, 2023)Fused Deposition Modelling (FDM)/Fused Filament Fabrication (FFF)/Material Extrusion (MEX) is a well-known Additive Manufacturing (AM) process used in various fields of production. The extrusion/printing speed, nozzle ...
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(University of Pretoria, 2020)A mathematical model of a continuous Kraft wood digester was developed and tested. The model relies heavily on the work done previously by Christensen, Albright & Williams (1982). The batch Kraft digester model developed ...
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(University of Pretoria, 2023)Photocatalysis has attracted attention as a viable technology for use in the environmental and energy generation fields. In the last couple of decades, researchers have continued to develop new photocatalysts in the area ...
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(University of Pretoria, 2023)Poor agricultural practices involving synthetic fertilizers have caused many environmental issues which leads to the pollution of all biospheres of the earth. In order to meet the ever-increasing demand of fertilizer it ...
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(University of Pretoria, 2022)The study focused on determining the microbial precipitation abilities of two bacterial strains, Paraclostridium bifermentans and Klebsiella pneumoniae isolated from an industrially obtained microbial consortium. Previous ...
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(University of Pretoria, 2022)Environmental pollution is a global problem that affects both developed and developing countries by contaminating soil and water, threatening biodiversity, ecosystems, and human health. South Africa holds the largest chrome ...
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(University of Pretoria, 2022)The four-carbon dicarboxylic acid, fumaric acid, of the tricarboxylic acid cycle remains a promising bio-based platform chemical. To date the most promising organism for pro- ducing fumaric acid is Rhizopus oryzae (ATCC ...
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(University of Pretoria, 2022)Microbial fuel cell (MFC) architectural modification is increasingly becoming an important area of research due to the need to improve energy recovery. In this study, we present a simple low-cost modification method of the ...
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(University of Pretoria, 2022)Engineered nanoparticles (ENPs) including silver (n-Ag) and zinc oxide (n-ZnO) are among rapidly increasing contaminants of emerging concern (CECs) globally. Moreover, pesticides (e.g. atrazine (ATZ)) owing to their extensive ...
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(University of Pretoria, 1981)Afrikaans: Dit is bekend dat aluminiumallooie wat meer as 4,5% koper bevat korrosieprobleme ondervind wanneer dit in kontak met enkelfasige petrol-alkoholmengsels is, mits die tempe= rature hoer as 60°c is. Hierdie ...
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(University of Pretoria, 2014)A green synthesis method for the synthesis of hydrotalcite has been previously developed but this process has not yet been optimised. The main focus of this dissertation was on aluminium-based LDHs. The purpose of this ...
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(University of Pretoria, 2022)The CRIPS 2 dual fluidised bed pyrolysis unit at the University of Pretoria was successfully constructed and subsequently commissioned through eight experimental runs. The scope of the investigation involved determining ...
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(University of Pretoria, 2021)Current agricultural practices have proven unsustainable due to high reliance on chemical fertilizers. Several environmental problems such as leaching of nitrogen into water bodies and the release of NOx gasses emerge from ...
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(University of Pretoria, 2021)The discharge of poorly treated wastewater containing persistent organic contaminants, such as phenol, into water bodies is a major contributor to water pollution. This is of great concern as it poses health threats to ...
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(University of Pretoria, 2020)Controlled-release formulations for pesticide applications act as depot systems that continuously release the active ingredients into the environment over a speci ed period, usually from months to years. However, some ...
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(University of Pretoria, 2017)At present, the explosives industry in South Africa makes extensive use of heavy metal oxide pyrolants in the time-delay elements of detonators used in mining activities. There is a drive towards the use of safer and ...
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(University of Pretoria, 2021)Near-net-shape manufacturing of titanium metal components through powder metallurgy confers various cost-saving benefits, from improved material utilisation to reduced energy consumption. Further savings can be realised ...
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(University of Pretoria, 2021)Colourimetric indicators were prepared using anthocyanins, poly(vinyl alcohol) and cellulose nano-fibre by the electro-spinning technique. The indicator label containing 2000 ppm anthocyanin was found to be the optimal dye ...
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(University of Pretoria, 2021)Widespread use of engineered nanoparticles (ENPs) in consumer products and industrial applications has increased rapidly in recent years. Among the commonly used metal oxide ENPs are aluminium oxide (nAl2O3) and copper ...
Now showing items 21-40 of 343