Browsing by Author "Waanders, Frans"
Now showing items 1-20 of 24
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Adsorption of Congo Red by surfactant-impregnated bentonite clay
Fosso-Kankeu, Elvis; Waanders, Frans; Fourie, Charissa Laurette (Taylor & Francis, 2016)Due to an ever-changing climate and invasive foreign plant species increase, South Africa struggles with limited water resources. Water is important for the sustenance of all living organisms and it has to be protected. ... -
Adsorption of metal ions from fine coal tailings dump waste water using bio-char
Fosso-Kankeu, Elvis; Weideman, Reinhardt; Moyakhe, Dumisane; Campbell, Quentin; Waanders, Frans (EARET, 2018)Coal mining operations produce large amounts of tailings which contains heavy metals. Heavy metals such as cadmium (Cd) can cause environmental problems. The adsorption capacities of biochars produced from spent coffee ... -
Assessment of the performance of SDS-impregnated brewery waste as suitable adsorbent for the removal of Pb and Cd from water
Fosso-Kankeu, Elvis; Leamy, Meiklejohn; Akinpelu, Enoch; Waanders, Frans (EARET, 2018)— Due to increasing populations and an ever-changing climate, limited water resources are South Africa’s burden. Clean water is important for all living organisms’ health and environmental sustainability. To achieve ... -
Bentonitc clay adsorption affinity for anionic and cationic dyes
Fosso-Kankeu, Elvis; Waanders, Frans; Fraser, Corinne (PSRC, 2014)The incidence of dye pollution in South Africa is quite alarming, requesting effective and affordable techniques to curb further degradation of the limited water resource. Adsorption is an attractive technique due to a ... -
Biological reduction of COD and sulphate by SRB in anaerobic moving bed biofilm reactor under high metal loading conditions
Akinpelu, Enoch A.; Fosso-Kankeu, Elvis; Waanders, Frans; Ntwampe, Seteno K.O. (EARET, 2018)The performance of an anaerobic moving bed biofilm reactor (MBBR) containing AnoxKaldnesTM K5 model for the treatment of raw acid mine drainage (AMD) was investigated for the reduction of sulphate and chemical oxygen ... -
Biosorption of cadmium from water using surfactant impregnated eggshell
Fosso-Kankeu, Elvis; Steenekamp, Gerhard; Akinpelu, Enoch; Waanders, Frans (EARET, 2018)Cadmium (Cd) is regarded as one of the most toxic elements and it causes water pollution when it exceeds the permissible limit. It is currently present in the Mooi River above these permitted levels, and must therefore ... -
Brewery effluent sludge characterization and dewatering to increase potential water recycling capabilities
Fosso-Kankeu, Elvis; Van der Vyver, Christiaan; Moyakhe, Dumisane; Waanders, Frans; De Klerk, Corli (EARET, 2018)In this study various coagulants and flocculants were tested for optimum removal of COD from brewery wastewater. The coagulants used were ferric chloride and an organic coagulant mixture obtained from the brewery company. ... -
Coal cleaning residues and Fe-minerals implications
Silva, Luis F.O.; Waanders, Frans; Macias, Felipe; Oliveira, Marcos L.S.; Da Boit, M. Kátia (Springer, 2011)In the present investigation, a study was undertaken to understand the origin of Fe-minerals presents in Brazilian coal mining and to understand the environmental implication and the chemical heterogeneity in the study ... -
Comparative analysis of brewing wastewater and lactate as carbon sources for microbial community treating acid mine drainage in anaerobic MBBR systems
Akinpelu, Enoch Akinbiyi; Ntwampe, Seteno K.O.; Fosso-Kankeu, Elvis; Waanders, Frans (Taylor & Francis, 2020)This study investigated the effect of carbon sources (n = 2) on the performance of a microbial community in an anaerobic moving-bed biofilm reactor (MBBR) treating acid mine drainage (AMD). The 1.5 L anaerobic MBBR was ... -
Effect of fine coal tailing porosity on the mobility and speciation of heavy metals in the leachates
Fosso-Kankeu, Elvis; Olivier, Charl; Moyakhe, Dumisane; Barlow, Brad; Campbell, Quentin; Waanders, Frans (EARET, 2018)The effect of porosity of coal tailings on the mobilization and speciation of heavy metals is important for the implementation of management strategies. In this study, column leaching experiments were carried out to ... -
Effect of temperature and cathode material on power production in an earthenware microbial fuel cell
Fosso-Kankeu, Elvis; Rosslee, Gerhard; Pandey, Sadanand; Waanders, Frans; Marx, Sanette (EARET, 2018)This study investigates the performance of microbial fuel cells (MFCs) fed with municipal sewage water considering parameters such as temperature and cathode materials. Single chamber ceramic MFCs with the cathode exposed ... -
Hydrothermal synthesis, characterization and adsorption testing of MoS2-Zeolite for the removal of lead in an aqueous solution
Fosso-Kankeu, Elvis; Spiro, Martin; Waanders, Frans; Kumar, Neeraj; Ray, Suprakas Sinha (EARET, 2018)The shortage of water can be worsened by the pollution of limited water resources by industrial activities such as mining which contribute to significant level of toxic heavy metals in the environments. Heavy metals ... -
Investigation of effective chemical flocculation conditions for the treatment of reverse osmosis reject water from coal power plant: a case study
Van der Linde, Johannes Cornelius; Fosso-Kankeu, Elvis; Waanders, Frans; Gericke, Gerhard (Desalination Publications, 2020)Power generation processes generate wastewater that is rich in scale-forming agents and which, therefore, requires suitable pre-treatment prior to further treatment with an RO system. In this study, Rheofloc5023 was used ... -
Metal retention potential of sediment and water quality in the Mooi River, South Africa
Manyatshe, Alusani; Fosso-Kankeu, Elvis; Van der Berg, Divan; Lemmer, Nico; Waanders, Frans (Taylor & Francis, 2017)The potential metal retention by sediments along the Mooi River and connected streams in the vicin - ity of Potchefstroom, South Africa, was evaluated using the four-stage sequential extraction proce - dure. ... -
Metal speciation in the rivers around Potchefstroom based on seasonality
Manyatshe, Alusani; Fosso-Kankeu, Elvis; Van der Berg, Divan; Lemmer, Nico; Waanders, Frans; Tutu, Hlanganani (Water Environment Federation, 2018)About 44 surface water samples were collected in the wet and dry seasons around mining areas near the city of Potchefstroom in South Africa, and physicochemical parameters were analyzed to assess the speciation of pollutants ... -
Mineralogical observation made during the kinetic dissolution study of chalcopyrite mineral in sulphate media under free pH at room temperature
Nyembwe, Kolela J.; Fosso-Kankeu, Elvis; Waanders, Frans; Malenga, Edward Ntumba (EARET, 2018)An attempt to determine the various phenomena at play and leaching mechanism of chalcopyrite dissolution, was conducted on a chalcopyrite concentrate. The study was performed at atmospheric conditions (room temperature) ... -
Mobility potential of metals in acid mine drainage occurring in the Highveld area of Mpumalanga Province in South Africa: implication of sediments and efflorescent crusts
Fosso-Kankeu, Elvis; Manyatshe, Alusani; Waanders, Frans (Elsevier, 2017)Prediction of the dispersion of pollutants from the acid mine drainage is an important step toward the development of remediation strategy and mitigation of environmental impact. Geochemical studies are often carried out ... -
Photocatalytic degradation of naphthalene using tin dioxide nanomaterial under visible light
Fosso-Kankeu, Elvis; De Bruyn, Dewald; Mukwevho, Nthambeleni; Waanders, Frans (EARET, 2018)Coal processing in the refinery industry often lead to the formation of coal tar containing polycyclic aromatic hydrocarbons which are likely to affect human and animal health when released in surface and ground waters. ... -
Prediction of dissolution of copper from a chalcopyrite carbonatite ore of South Africa
Barlow, Brad; Fosso-Kankeu, Elvis; Nyembwe, Kolela; Waanders, Frans; Malenga, Edward Ntumba (EARET, 2018)Chalcopyrite accounts for 70% of all copper bearing minerals and therefore has been studied closely to understand the dissolution kinetics in hope of overcoming the passivation film and increasing the extraction rates ... -
Reduction of salinity of water using acrylamide-based polyampholyte
Fosso-Kankeu, Elvis; Varachia, Hasan; Waanders, Frans (EARET, 2018)Polyampholytes are charged macromolecules, which carry both acidic and basic groups. These groups dissociate, leaving ions on chains and counter ions in solution, under appropriate conditions, ...