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Browsing Department of Civil and Chemical Engineering by Type "Dissertation"

Now showing items 1-20 of 38

Adsorptive desluphursation of diesel fuel on unprocessed amarula (sclerocarya birrea) wastes or synthesized activated carbons from biomass wastes

Kabi, Tsepiso Regina (2020-10)

Diesel fuel has been found to contain highly concentrated organo-sulphur compounds which have bad impact economically, environmentally, and health-wise. Adsorptive desulphurization (ADS) is one of the promising processes ...
Analysis of potential energy conservation and emissions reduction in ferrous foundries in the cities of Ekurhuleni and Johannesburg

Singo, Shonisani Norman (2015-02)

The challenge facing South African foundries today are compliance with the environmental legislations while maintaining a high production rate. The focus of this study is to assist foundries to comply with National Environment ...
Application of chlorine dioxide as an alternative pre-oxidant in the treatment of eutrophic raw water

Strydom, Willem Frederick (2017-10)

The Vaalkop water treatment works (WTW) abstracts water from the Vaalkop Dam, which is situated in the Crocodile West/Marico Water Management Area of South Africa. The bulk of the inflow into the dam is through a canal fed ...
Characterization and properties of sulfonated chitosan membrane for direct methanol fuel cell

Modau, Livhuwani Elsie (2023-04-11)

This dissertation examines the structure and properties of chitosan membranes regarding their applicability in fuel cells. The objective of this work is to synthesize a polymer membrane with improved properties such as ...
The combined solar-photovoltaic electricity and solar-themal heat application in power to chemicals process schemes: consideration of optimal solar photovoltaic surface area fractions

Llane, Maphala Ephraim (2021-09)

Power-to-chemicals processes hold tremendous potential to enable the widespread adoption of renewable sources of energy and to open many avenues to the green hydrogen economy. These processes will play a critical role ...
Comparative studies of electrochemical corrosion behaviour of mild steel in some agro-fluids

Ogazi, Anthony Chikere (2015-04)

The electrochemical corrosion behavior of mild steel in apple, grape, mango, orange and the mixture of these juices was investigated in this study. Open circuit potential and weight loss analytical techniques were employed ...
Conceptual design of a glycerol biorefinery

Mukeru, Bahizire Martin (2021-12)

Glycerol is considered as the major waste from biodiesel production since every 1L of biodiesel produced is accompanied by 0.1 L of glycerol by-product. Utilizing this waste as a biorefinery feedstock will not only ...
Conceptual design of gasification-based biorefineries using the C-H-O ternary diagram

Litheko, Lefu Andrew (2017-10)

This dissertation develops a systematic targeting method based on the C-H-O ternary diagram for the conceptual design of gasification-based biorefineries. The approach is applied using dimethyl ether (DME) as case study. ...
Construction of the attainable region candidates for ball milling operations under downstream size constraints

Dlamini, Mlandvo Brian Thembinkosi (2019-09)

This study investigated the influence of the attainable region technique to ball milling as applied in reactor technology. Flow rate, ball filling, mill speed, ball size and mill density were varied. When each was varied, ...
A design and development of iron ore Fischer Tropsch catalyst

Mubenesha, Samuel (2020-03)

The global community has accepted Fischer Tropsch synthesis as one of the sustainable pathways to transportation fuels and chemicals due to the ever-depleting reserves of fossil fuels and its detrimental impact on the ...
Determining the extent of de facto water re-use in South Africa : the case of wastewater treatment plants in Gauteng, KwaZulu-Natal and Western Cape provinces

Swana, Umhle Unathi (2022-01-26)

The water quality of South African rivers is greatly impacted by insufficiently treated wastewater effluents (de facto reuse). Although de facto reuse serves as an alternative water supply it poses potential threats to ...
Development of a microbial fuel cell for energy recovery from wastewater

Ledwaba, Kabelo Mike (2017-10)

A key engineering challenge is a transition to cleaner sustainable energy supply that is derived from renewable resources. Furthermore, affordable access to this modern sustainable energy services for communities in ...
Development of a model to be used as an indicator of oily wastewater pollution, fingerprinting and compliance using dimensional analysis

Monatisa, Lerato Elizabeth (2020-09)

Water is the source of life because all living organisms cannot survive without it and it is the most important liquid in the ecosystem hence protecting water resources and ensuring water quality should always be an issue ...
Development of greener sample preparation methods for extraction and spectrometric determination of metals in selected fuel samples

Mdluli, Njabulo Simanga (2022-02)

Crude oil is an unrefined petroleum which forms because of dead organisms buried under mud over a long period of time (million years). The mud is then converted to sedimentary rocks, which create intense heat and pressure, ...
Effect of chlorinating agents on purity of Zirconium tetrachloride produced from Zirconium tetrafluoride

Makhofane, Milton Molahlegi (2014-06)

Zirconium tetrachloride (ZrF4) is extensively used in the manufacturing of zirconium metal. The concept of producing zirconium tetrafluoride from dissociated zircon and ammonium bifluoride is well established at the South ...
Effect of nano-carburization of mild steel on its surface hardness

Hassan, Ajoke Sherifat (2015-09)

There has been progress in the surface modification of low carbon steel in order to enhance its surface hardness. This study contributes to this by investigating the introduction of carbon nanotubes and amorphous carbon ...
The effect of South African quaternary supplementary cementitious blends on corrosion behaviour of concrete reinforcement in chloride and Sulphate media

Akinwale, Abiodun Ebebezer (2018-10)

The aim of this study was to assess the strength, durability properties and corrosion resistance of concrete samples using supplementary cementitious blended materials. In this investigation, three supplementary concrete ...
Effects of mill rotational speed on the batch grinding kinetics of a UG2 platinum ore

Makgoale, Dineo Mokganyetji (2019-11)

In this study, the effect of speed was investigated on the breakage rate of UG2 platinum ore in a batch mill of 5 dm3 and 175 mm internal diameter. One size fraction method was carried out to perform the experiment. Five ...
Evaluation of heavy metals in soil : a case study of platinum tailing dam site

Nkobane, Molebogeng Precious (2014-09)

Mining industry has been identified as the main sustenance of the South African economy, however the negative impacts of the industry on the ecological systems cannot be over emphasized due to the released waste which is ...
Functional characterization of lignin modifying enzymes produced by white rot fungi for their mycoremediation potential of petroleum (xenobiotic) polluted soil

Heri, Sylvie Mauwa (2022-12-19)

Industrialization has resulted in the introduction of xenobiotics into the environment. These chemicals have polluted soil, water, and air, causing significant health concerns. White rot fungi possess the capability to ...

Browsing Department of Civil and Chemical Engineering by Type "Dissertation"

Browsing Department of Civil and Chemical Engineering by Type "Dissertation"

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