Chemical Engineering: Recent submissions

Now showing items 1-20 of 25

Flue gas desulphurization by spray dry scrubbing

Koech, Lawrence (Vaal University of Technology, 2022-03)

Post combustion sulphur dioxide (SO2) emission is a major problem facing coal-based power plants. Increased awareness of the detrimental effects of SO2 on human health and the environment has prompted increased pressure ...
Application of nonwoven microfiltration membrane on activated sludge final effluent: improving wastewater quality for re-use

Masala, Murendeni Shonisani (Vaal University of Technology, 2022-04)

Water scarcity is one of the biggest problems that South Africa is facing currently, as a results it limits economic and social development. The application of membrane technology in wastewater treatment for re-use is one ...
Application of neural network techniques to predict the heavy metals in acid mine drainage from South African mines

Maliehe, Andani Valentia (Vaal University of Technology, 2022-04)

Acid mine drainage (AMD) refers to acidic water generated during mining activities and is characterised by a low pH, high salt content, and the presence of heavy metals. To treat water sources contaminated with AMD, sampling ...
Production of adsorptive material from modified nanocrystals cellulose for industrial application

Banza, Musamba Jean Claude (Vaal University of Technology, 2022-05)

Water is the essence of life, yet it is progressively polluted by dyes, heavy metal ions, food additives, medicines, detergents, agrochemicals, and other toxins from industrial, municipal, and agricultural sources. Among ...
Hybrid light photocatalysis of aromatic wastes in a fluidized bed reactor

Akach, John Willis Juma Pesa (Vaal University of Technology, 2022-08)

The use of solar photocatalysis for the treatment of aromatic chemicals like phenol in wastewater has attracted significant attention due to the low cost of sunlight. However, sunlight is unreliable since its intensity ...
Electrocatalytic degradation of industrial wastewater using iron supported carbon-cloth electrode via Electro-Fenton oxidation process

Emeji, Ikenna Chibuzor (Vaal University of Technology, 2021-02)

Human immunodeficiency virus (HIV) and acquired immune deficiency syndrome (AIDS) causes morbidity and mortality in infected patients. These epidemics are significantly reduced and treated globally with antiretroviral drugs ...
Biodiesel production and evaluation of heterogeneous catalyst using South African oil producing trees

Modiba, Edward Magoma (Vaal University of Technology, 2014-01)

This study presents the use of sodium methoxide as a homogeneous catalyst and impregnated Perlite (potassium hydroxide/perlite) as heterogeneous catalyst for production of biodiesel using Baobab and Marula oil respectively. ...
Synthesis of gelatin-cellulose hydrogel membrane for copper and cobalt removal from synthetic wastewater

Lukusa, Tresor Kabeya (Vaal University of Technology, 2021-04)

Heavy metal ions are one of the most toxic materials in the environment. Adsorption is the most used process for the removal of heavy metals from wastewater. Much research has been conducted into processes to remove heavy ...
Development of sulfonated chitosan membranes modified with inorganic nanofillers and organic materials for fuel cell applications

Zungu, Nondumiso Petunia (Vaal University of Technology, 2021-07-06)

Fuel cell technology is a promising clean energy source compared to internal combustion engines and electricity generating plants which are associated with high emissions of greenhouse gases. The aim of this study was to ...
Modelling of in-situ real-time monitoring of catalysed biodiesel production from sunflower oil using fourier transform infrared

Mwenge, Pascal Kilunji (Vaal University of Technology, 2020-10)

The industrialisation of the twenty-first century and the worldwide population growth led to the high demand for energy. Fossil fuels are the leading contributor to the global energy, and subsequently, there is a high ...
Biogas production from solid food waste and its use for electricity production

Khune, Selebogo Mervyn (Vaal University of Technology, 2021-10-15)

An enormous amount of food waste (FW) is generated worldwide. Most of this waste is discarded in landfills, where it undergoes uncontrolled anaerobic digestion (AD) process, which emits excessive amounts of greenhouse ...
Thermomechanical and rheological properties of investment casting patterns

Tewo, Robert Kimutai (Vaal University of Technology, 2019-10-02)

Investment casting process is the most suitable technique for producing high quality castings which are dimensionally accurate with excellent surface finish and complex in nature. Recently with the ever-changing manufacturing ...
Desulphurization of diesel fuel using carbon-based metal oxide nanocomposites

Cherubala, Rusumba Bienvenu (Vaal University of Technology, 2021-04)

This thesis presents a slight on desulphurization process of the commercial diesel fuel using the carbon-based metal oxide nanocomposites such as graphene oxide, ZnO, rGO as a nano-adsorbent, activated carbon (PAC and ...
Optimization of ion exchange process on the removal of heavy metals from cooling tower water and regeneration of ion exchange resins.

Mbedzi, Robert Mbavhalelo (Vaal University of Technology, 2020-06)

In the present study, the removal of Ca2+ and Mg2+ from cooling tower water using Amberlite IR120 and Amberjet 1200 was studied by the application of one factor at a time method (OFAT) and response surface modelling (RSM). ...
Activation of the carbonaceous material from the pyrolysis of waste tires for wastewater treatment.

Malise, Lucky (Vaal University of Technology, 2017-07)

The generation of waste tires is one of the most serious environmental problems in the modern world due to the increased use of auto mobiles all over the world. Currently there is a problem with the disposal of waste tires ...
Integrated anaerobic digestion and UV photocatalytic treatment of industrial wastewater in fluidized bed reactors

Apollo, Seth Otieno (Vaal University of Technology, 2017-03-28)

Anaerobic digestion (AD) is usually applied in the treatment of distillery effluent due to the fact that it is effective in chemical oxygen demand (COD) reduction and bioenergy recovery. However, due to the presence of ...
Modelling of Petroleum Wastewater Photodegradation in a Fluidized Bed Reactor

Nyembe, N. (Vaal University of Technology, 2018-04)

Petroleum wastewater is highly contaminated with toxic organic pollutants that are harmful to the environment. The heterogeneous photocatalytic oxidation (HPO) process has shown the ability to remove these pollutants through ...
The adsorption of Cu(II) ions by polyaniline grafted chitosan beads.

Igberase, Ephraim (Vaal University of Technology, 2013-11-06)

This work investigates the possible use of chitosan beads and polyaniline grafted chitosan beads (PGCB) for the adsorption of copper ions from copper contaminated water. For this purpose chitosan flakes were converted ...
Desulfurization of waste tire pyrolytic oil (TPO) using adsorption and oxidation techniques

Mello, Moshe (2018-01)

The presence of tires in open fields, households and landfills is a great threat to the wellbeing of the ecosystem around them. Tire creates an ideal breeding ground for disease carrying vermins and their possible ignition ...
Corrosion behaviour of ferrous and non-ferrous alloys exposed to sulphate - reducing bacteria in industrial heat exchangers

Prithiraj, Alicia (Vaal University of Technology, 2018)

Corrosion responses of some carbon steels, stainless steel and copper alloys in the presence of a culture of bacteria (referred to as SRB-Sulphate-reducing bacteria) found in industrial heat exchangers, was studied to ...