Elvis Fosso-Kankeu- Professor
- Professor (Full) at North-West University
Elvis Fosso-Kankeu
- Professor
- Professor (Full) at North-West University
About
231
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Introduction
Working on the monitoring of surface water pollution, adsorption of pollutants in wastewater and photodegradation of organic pollutants (Particular interest on PAHs from coal tar)
Current institution
Additional affiliations
June 2013 - October 2015
June 2013 - present
Publications
Publications (231)
With emphasis on copper-cobalt bearing minerals, robustly presented background and specific case studies on the recovery of values from complex ores are discussed in the book.
Low-grade ores and complex minerals are more and more encountered as rich seams are depleting and deep mining, offshore mining, extraterrestrial mining and urban mining are deemed to be practiced. In addition to a sound theoretical background, specific case studies with emphasis on iron ores, coal and copper-cobalt bearing minerals are discussed in...
The resistance of different pathogenic variants of E. coli to antibiotics, is a health concern globally. The study assessed the resistance of 90 E. coli isolates that survived chlorination at a Wastewater Treatment Plant (WWTP) in North West, South Africa (NW-SA), to 12 different antibiotics using the Kirby-Bauer disk diffusion method. The study fu...
KEYWORDS influent effluent E. coli chemical parameters seasonal variation COPYRIGHT © The Author(s) Published under a Creative Commons Attribution 4.0 International Licence (CC BY 4.0) The study was conducted at a wastewater treatment plant (WWTP) in the North West Province of South Africa (SA), to investigate the effect of seasonal variations of r...
The mechanisms involved in the dissolution of chalcopyrite from a carbonatite concentrate in a ferric sulphate solution at pH 1.0, 1.5 and 1.8, and temperatures 25 °C and 50 °C were investigated. Contrary to expectations and thermodynamic predictions according to which low pH would favour high Cu dissolution, the opposite was observed. The dissolut...
![Fig. A.1. DSC curve of pMWCNT-βCD/TiO 2 -Ag nanobiosorbent [1] .](publication/350206992/figure/fig1/AS:1013259842904065@1618591380760/Fig-A1-DSC-curve-of-pMWCNT-bCD-TiO-2-Ag-nanobiosorbent-1_Q320.jpg)
![Fig. A.2. TGA curve of pMWCNT-βCD/TiO 2 -Ag nanobiosorbent [1] .](publication/350206992/figure/fig2/AS:1013259842887682@1618591380919/Fig-A2-TGA-curve-of-pMWCNT-bCD-TiO-2-Ag-nanobiosorbent-1_Q320.jpg)
The availability and quality of water resources is currently the primary concern in Southern Africa. The challenge is to improve or develop water treatment materials or methods to solve this problem of potable water scarcity. Hence, this article presents the analyzed data, which are supplementary data information on the study of bio nanosponge phos...
In the current scenario, the world is facing a shortage of fuels, and in the future, the existing reservoirs of fuels will be exhausted; this challenging situation could be solved by the method of syngas fermentation. Syngas is a mixed composition of gases including carbon monoxide, hydrogen and a lesser amount of carbon dioxide. Mostly, syngas syn...
When organic dye-containing wastewater from textile industries are sometimes released into the environment, the liquids tend to pollute the environment whilst their solid residue accrues on land after the evaporation of the water. Most of these synthetic compounds are known to be poisonous and carcinogenic to living organisms. For this study, a rel...
Over the past few years, there has been a lot of emphasis on wastewater treatment due to the unavailability of fresh water globally. Currently, the availability of fresh water is very limited in some parts of the world. Various problems like salinity intrusion, heavy metal injection, nutrient eutrophication, etc. are making it difficult to access f...
Leaching due to landfills has proven to be one of the major sources of pollutants in groundwater. Waste materials get dissolved and liquified to form leachates, with constituent organic, inorganic, and heavy metals inherent. There are no working alternatives for discarding wastes without direct or indirect contamination of the groundwater. There is...
Nowadays, the use of natural and modified polymers for the removal of dyes from wastewater is becoming more common. We briefly summarize some of the results in this article. The present study focuses mainly on the synthesis of locust bean gum grafted polyaniline (LGP) via in situ oxidative polymerization using ammonium persulfate (APS) as an oxidan...
To improve effectiveness while using very low doses to avoid side effects on one hand and maintain affordability, we are proposing a therapeutic system that can target cancerous cells with more precision and deliver the drug upon induction by the doctor. The concept is to use magnetised polymer-based nanocapsules of cancer drugs, which can be magne...
The aim of this study was to determine the acid-generating potential of coal mine tailings located in the Middelburg area, South Africa, using conventional assessment techniques. Four coal-tailing samples were collected from different layers of a coal-tailing pile. The acid-base accounting (ABA), acid-buffering characteristic curve (ABCC), and net...
This work explored the potential of clinoptilolite, molybdenum sulphide (MoS2), and MoS2-clinoptilolite composite in lead (Pb) removal from aqueous medium and industrial mining wastewater. MoS2-clinoptilolite composite was successfully prepared by a hydrothermal method. The surface properties, structure, and composition of the synthesized composite...
Recent developments have provided the opportunity to recover valuable materials from AMD treatment; this is a sustainable approach that allows to reduce waste while generating incomes that balance the cost of the treatment. This books provide insights to innovative and affordable routes for AMD valorisation that can certainly motivate the mining in...
Compliance of the effluents from wastewater treatment plants (WWTPs) to the regulatory standards, which mostly entail the removal/reduction of organic waste and deactivation of the potential microbial pathogens is of great importance. The detection of indicator parameters can be used to determine the effectiveness of a WWTP and the level of complia...
Mercury is one of the most toxic, harmful element present in water that severely affects human health. Many traditional as well as advanced technologies were developed to remove mercury from wastewater. In this study, sulfur copolymers containing micro and macro porous structure were prepared via inverse vulcanization technique and used to capture...
Waste management stays a challenge in developing countries. This research reports on the valorisation of agro-waste for the synthesis of nickel oxide nanoparticles (NiO NPs), useful as antibacterial agents to assure the sustainable use of renewable waste resources for human health protection. Agro-waste extracts from Persea americana seed, Zea mays...
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Photocatalysts in Advanced Oxidation Processes for Wastewater Treatment comprehensively covers a range of topics aiming to promote the implementation of photocatalysis at large scale through provision of facile and green methods for catalysts synthesis and elucidation of pollutants degradation mechanisms. This book is divided into two...
This study reports on the spectroscopic characterization and antimicrobial potency of polyurethane cyclodextrin co-polymerized phosphorylated multiwalled carbon nanotube-doped Ag-TiO2 nanoparticle (pMWCNT-CD/Ag-TiO2) bionanosponge nanocomposite. The synthesis of pMWCNT-CD/Ag-TiO2 bionanosponge nanocomposite was carried out through the combined proc...
Free Cyanide (FCN) is a harmful product released into the environment by several metallurgical industries. Various concentrations of Zinc Oxide (ZnO) nanoparticles have been synthesized by green method using Eucalyptus globulus leaves and tested for FCN removal. The optical and physico‐chemical characteristics of the synthesized ZnO nanoparticles w...
In the recent year, photocatalysis has hold of really extensive attention because of its encouraging applications such as in photocatalytic degradation of organic pollutants, photocatalytic dissociation of water, solar energy conversion, and disinfection. The present chapter deals with the development of visible light-responsive sensitized photocat...
In this study, the hydrochemical characteristic changes of open-pit groundwater (OPGW) near a closed metalliferous mine proposed for drinking and irrigation usage were investigated. Water samples from an OPGW in O’Kiep were collected in April (dry season) and August (wet season), 2017. Data analysis methods, such as the coefficient of variation, co...
Availability of quality water for drinking purposes is important for the health and well-being of humans. The discharge of effluents containing dyes to water bodies increase the toxicity resulting in environmental pollution thereof. The treatment of water contaminated by dyes is thus essential. However, due to the intricate structure of many dyes,...
Acid generated by coal mine tailing can have a detrimental effect on the environment and human health. Determining whether acid mine drainage (AMD) will occur is of the utmost importance to develop a remediation strategy. Acid base accounting (ABA) is one of the most populate test protocols used today to assess and classify the acid generating pote...
This research study focuses on the brewing industry for it constitutes an important economic segment of any country in the world. The effluents from brewering processes such as fermentation and filtering contain high organics/biochemical oxygen demand (BOD). The study investigates the effect of pre-treatment on the performance of coagulants/floccul...
The current paper presents the synthesis of simple, rapid, low cost, eco-friendly kappa carrageenan gum (CG) capped silver nanoparticles (AgNPs) (CG-capped AgNPs) using biopolymer, CG. The physico-chemical characterization was done using Ultraviolet-visible spectroscopy, Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (...
In attempt to provide insight on the chemistry of dissolution of chalcopyrite, a carbonatitic copper concentrate was dissolved for 12 hours in ferric sulphate (0.05 mol/L) solution of pH 1.0 at room temperature and atmospheric pressure, in a stirred Erlenmeyer flask with 10% solid. The results revealed a low Cu recovery (<12%) however the solution...
Coke is the material left when water, coal-gas and coal-tar are driven off during the carbonization of coal at temperatures around 1100 o C in an airtight oven, a process refers as cokemaking or coking. Coal tar is produced during the coking process, although often considered for reuse in some other processes, a considerable amount of coal is event...
Reflection for learning allows the students to become reflective about the teaching and learning process. A reflective practice was carried out in this study with individuals and group of students. The purpose of this study was twofold; firstly, to assess the suitability of the delivery method for an enabling learning environment and secondly to fi...
![Fig. 2 Syngas production block flow diagram [23]](profile/Elvis-Fosso-Kankeu-2/publication/338376688/figure/fig1/AS:843419765186560@1578098350680/Syngas-production-block-flow-diagram-23_Q320.jpg)
Coal has been mainly used in South Africa for electricity generation by the power utility, however, with the rapid decline of high grade coal, other processes such as gasification and coal coking which rely mostly on low grade coal are likely to be the main consumers of coal in a foreseeable future. Such processes produce significant amount of coal...
![Fig. 2. Lime dosing plant layout [5]](profile/Elvis-Fosso-Kankeu-2/publication/338376833/figure/fig1/AS:843418003582977@1578097930958/Lime-dosing-plant-layout-5_Q320.jpg)
Scaling, fouling and corrosion are known to have a substantial effect on the performance of coal fired power plant condensers. There are different treatment processes employed in combination with the in-service mechanical cleaning, however, the treatment processes have some limitations when looking at the cooling water chemistry control and condens...
Samples of metalliferous soils (MS) from the O'Kiep area in South Africa were evaluated for their potential to form acid rock drainage (ARD). Metalliferous soil leachates (MSL) were measured weekly for their pH, electrical conductivity, total dissolved solid, alkalinity, sulfate and Potential Toxic Elements (PTEs). Characterisation of the MS showed...
In this study SH-MWCNTs/MoS2 nanohybrid was synthesized via hydrothermal method. The nanohybrid composite was then characterized using the fourier transform infra-red (FTIR) spectroscopy, scanning electron microscopy (SEM) and Energy-dispersive x-ray spectrometry (EDS) then the successful incorporation of relevant binding groups was confirmed. The...
This study focuses on the identification of PAHs in coal tar produced from simulated pyrolysis and the synthesis of 2D g-C 3 N 4 photocatalyst for the degradation of the predominant PAH in the coal tar, namely naphthalene. Herein, a 2D g-C3N4 was prepared through calcination and employed in the photo-catalytic degradation of naphthalene, in water....
In this study spent coffee beans were transformed into biochar using a hydrothermal method where after it was pre-treated through surfactant impregnation to enhance its adsorption capacity. The non-treated and pre-treated biochars were characterized using FTIR spectroscopy analysis, which revealed a successful preparation of biochar with the potent...
Concerned with its impact on the environment, Eskom has implemented policies that work in the interest of preserving water. The "zero liquid effluent policy" highlights the importance of water recycle and reuse within the electricity generation sector. Eskom utilizes reverse osmosis (RO) to treat power plant wastewater, but this process yields a re...
The aim of this study was to determine the rate at which Cu is extracted from the surface of chalcopyrite contained in the tailings from the carbonatitic ore obtained from the carbonate complex in Loolekop, Phalaborwa, South Africa; the rate formation of the passivation phenomena during mineral dissolution was also observed. The objectives of the s...
One of the environmental challenges in O'Kiep is the increased levels of potentially toxic elements (PTEs) in metalliferous tailings (MTs), which may result in acid rock drainage (ARD) through oxidation. In this study, laboratory-based static tests were conducted on MTs to predict the risk of acid rock drainage potential (ARDP). Mineralogical analy...
Column experiments were conducted to study the adsorptive capacity of the zeolite clinoptilolite for zinc uptake. The effect of pH on the breakthrough point (and hence the ion exchange and saturation of the clinoptilolite surface) was studied. The results indicated that the adsorption capacity of the clinoptilolite is better at neutral pH metal sol...
This study presents the modelling of biological sulphate reduction in a heavy-metal laden acid mine drainage with high strength sulphate concentration. A simple dynamic model was utilised for the simulation of the biological sulphate reduction process in a continuously stirred tank reactor. The model developed described substrate utilisation via pa...
It has been reported that more than 1.8 billion people in the world did not have access to safe drinking water in 2015. Rural regions in developing countries are most susceptible to this issue. Water pollution can lead to waterborne diseases and therefore it is important that an effective water purification method is available for these households....
The use of magnesium sources such as magnesium hydroxide (Mg (OH) 2), magnesium oxide, pretreated magnesite (MgCO 3) and magnesium chloride, (MgCl 2) as precursor in the production of struvite has been explored by researchers. This study compares the different types of magnesium sources and their effectiveness in the production of struvite from was...
In this research, insoluble nanosponge β-cyclodextrin (β-CD) polyurethane was modified with phosphorylated multiwalled carbon nanotubes (pMWCNTs) and further decorated with titanium dioxide and silver nanoparticles. This modification of β-CD polyurethane was achieved through subsequent reactions of amidation, cross polymerization, using a functiona...
In the present work, the synthesis of k-carrageenan-crosslinked poly(acrylonitrile co-acrylamide) hydrogel through copolymerization of acrylonitrile and acrylamide. The optimum conditions for the synthesis of k-carrageenan-crosslinked poly(acrylonitrile co-acrylamide) hydrogel were determined by varying several parameters such as monomers, cross-li...
The present work highlights the synthesis of xanthan gum-cl-Dimethyl acrylamide hydrogel containing silica via microwave assisted method,in which N, N'-methylene bis-acrylamide (MBA) and ammonium persulfate (APS) were used as crosslinker and initiator, respectively. Silica was incorporated into the hydrogel matrix during the grafting reaction. The...
The current paper presents the synthesis of simple, rapid, low cost, eco-friendly kappa carrageenan gum (CG) capped silver nanoparticles (AgNPs) (CG-capped AgNPs) using biopolymer, CG. The physico-chemical characterization was done using Ultraviolet-visible spectroscopy, Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (...
E. coli is a common Gram-negative facultative anaerobic bacterium. Its principal habitat has been identified in the intestinal tracts of mammals and birds as well as non-host environment (water/sediments). It is widely used as an indicator bacterium and its detection in water indicates possible pollution with waterborne pathogens. The organism's qu...
In this study, a ZnO/Ag/GO nanocomposite was synthesised and used as photocatalyst for effective pho-todegradation of naphthalene from simulated wastewater under visible light. Chemical and morphological characterisation were successfully done using XRD, PL, UV-vis, FTIR, XPS, FESEM and HRTEM analytical tools. Photocatalytic degradation experiments...
This study focuses on the identification of PAHs in coal tar produced from simulated pyrolysis and the synthesis of 2D g-C 3 N 4 photocatalyst for the degradation of the predominant PAH in the coal tar, namely naphthalene. Herein, a 2D g-C3N4 was prepared through calcination and employed in the photo-catalytic degradation of naphthalene, in water....
Water insecurity is a growing concern globally and the role of groundwater and aquifers in buffering the effects of climate variability and change is increasingly acknowledged due to extended periods of drought in arid regions. Water security can only be fully realised with a more robust understanding of groundwater as a water resource, especially...
In this study, we investigate the adsorption capability of molybdenum sulfide (MoS2)/thiol-functionalized multiwalled carbon nanotube (SH-MWCNT) nanocomposite for rapid and efficient removal of heavy metals [Pb(II) and Cd(II)] from industrial mine water. The MoS2/SH-MWCNT nanocomposite was synthesized by acid treatment and sulfurization of MWCNTs f...
This book comprehensively covers topics related to the dispersion of emerging pollutants in the environment, their detection using innovative and state of the art technologies and approaches. Sustainable and effective treatment methods based on nanotechnology and biological processes that have been consequently developed in recent years for the rem...
In this study SH-MWCNTs/MoS2 nanohybrid was synthesized via hydrothermal method. The nanohybrid composite was then characterized using the fourier transform infra-red (FTIR) spectroscopy, scanning electron microscopy (SEM) and Energy-dispersive x-ray spectrometry (EDS) then the successful incorporation of relevant binding groups was confirmed. The...
This study reports on the biodegradation of free cyanide (FCN) by cyanide degrading bacteria (CDB) that were isolated from mining wastewater and thiocyanate containing wastewater. The performance of these isolates was compared to cryopreserved CDBs that were used in previous studies. The performance of the isolates to degrade FCN was studied in bat...
Spent coffee grounds were transformed into biochar using a hydrothermal method. Some of the biochar product was pre-treated through surfactant impregnation with sodium dodecyl sulphate (SDS) to enhance its adsorption capacity. The non-treated(NT) and pre-treated(PT) biochars were characterized using FTIR spectroscopy and SEM-EDS analyses, which rev...
Stoichiometry is one of the most important concepts in the engineering design of biological systems, based on the law of conservation of mass. However, this is incomplete without an elaborate energy balance for system design. Thermodynamics is an instrument in physical sciences that determines the feasibility of any reaction and conditions under wh...
The physicochemical analysis of surface water of Mooi and Vaal rivers network indicated that the
concentration of iron was far above the required limit by the South Africa water regulation. In this
study, brewing waste was used as biosorbent for the removal of iron from synthetic solution to develop
strategies for remediation of Mooi and Vaal river...
This chapter contains sections titled: Introduction Challenges and Prospects for Further Application Conflict of Interest Acknowledgments Contributions
This chapter contains sections titled: Introduction General Information on Polycyclic Aromatic Hydrocarbons Formation of PAHs Sources of PAHs Environmental Occurrence of PAHs Possible Health Impact of PAHs Pollutants Review of General Methods and Systems Used to Control Organic Contaminants in Water Principles of Photocatalysis Light Sources Differ...
This chapter contains sections titled: Introduction Mineral Scale Formation Scale Formation Mechanisms Scale Inhibition Mechanisms Characteristics of Anti‐Scaling Agents Principles of the Different Treatment Methods Conclusion Acknowledgments
This chapter contains sections titled: Introduction Fundamentals of SMFC and CW‐MFC Factors Affecting the Performance of SMFC and CW‐MFC Electricity Generation as a Function of Substrate Degradation Applications of SMFC and CW‐MFC Scaling Up of SMFC and CW‐MFC Conclusion
Nano and Bio-Based Technologies for Wastewater Treatment: Prediction and Control Tools for the Dispersion of Pollutants in the Environment is divided into two major parts namely Occurrence of emerging pollutants in water and possible risks which is Part I, and Part II is Nano and bio-based technologies for wastewater treatment. The first part prese...
In this study, ZnO/g-C 3 N 4 heterostructure was synthesized with enhanced photodegradation potential for polycyclic aromatic hydrocarbons (PAHs) (viz. naphthalene) in water using visible light. The as-prepared catalysts were characterized via different techniques such as scanning electron microscopy, high-resolution transmission electron microscop...
The development of new synthesis approaches for MoS2 is necessary to achieve controlled morphologies and unique physicochemical properties that can improve its efficiency in particular applications. Herein, a facile one-step hydrothermal route is proposed to prepare controllable MoS2 micro/nanostructures with an increased interlayer using sodium di...
The increasing scarcity of fresh water is putting more pressure on industries and municipalities to consider the reuse of effluent. However, the evolvement of microorganisms and the complexity of wastewater is rendering the conventional treatment process less effective for the removal of pathogenic microorganisms from wastewater, therefore increasi...
South Africa is a semi-arid country with an average rainfall less than half of the average rainfall worldwide. From the country limited water resource, 2%-3% of the water is used in energy generation. Thus the water intake from Eskom needs to be reduced to account for the depleting water resources in the country; effective treatment of the feed wat...
This chapter contains sections titled: Introduction Definition of Heavy Metals Sources and Toxic Effects of Heavy Metal Pollutants Enzyme Immobilization Techniques Sources of Enzymes Used for Removal of Heavy Metal Pollutants Literature Review on Removal of Heavy Metals Using Immobilized Enzymes Conclusion
This chapter contains sections titled: Introduction Organisms Employed in Phycoremediation Phycoremediation Fate of the Chemicals General Enzymes Involved in Bioremediation Genetic Advancements in the Field of Bioremediation Innovative Technologies for Phycoremediation Field Trials Current Challenges to the Growth and Commercialization of Algal Tec...
Copper oxide nanoparticles were synthesized using an eco-friendly, simple and cost effective green synthesis method mediated by maize (Zea mays L.) fresh husk extract. Pure reddish cubic Cu 2 O nanoparticles were obtained for the first time via this green synthesis route. The Cu 2 O nanoparticles were thermally oxidized to pure monoclinic CuO nanop...
The metagenomic data presented herein contains the bacterialcommunity profile of a drinking water supply system (DWSS)supplying O'Kiep, Namaqualand, South Africa. Representativesamples from the source (Orange River) to the point of use(O'Kiep), through a 150km DWSS used for drinking water distri-bution were analysed for bacterial content. PCR ampli...
Multimetal oxides nanocomposite photocatalysts based on Gd2O2CO3·ZnO·CuO were prepared by a co-precipitation method and carefully characterized using a range of analytical techniques. More specifically, analysis by X-ray diffraction and electron microscopies confirmed the identity and quality of the as-synthesized powders. The photocatalytic degrad...
In the field of wastewater purification and reclamation, nanotechnology offers effective treatment options for maximum riddance of bacteria and fungi. Polyrhodanine (PRD) nanofibers impregnated with silver nanoparticles were synthesized by a simultaneous chemical oxidation polymerization process in which the silver ions were reduced to silver nanop...
This study investigated the adsorption potential of a hydrogel composite (Kc-PAA-Si) synthesized through incorporation tetraethylortho-silicate (TEOS) into a K-carrageenan-based hydrogel (Kc-PAA). The synthesized Kc-PAA-Si was characterized using Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). Kc-PAA-Si exhib...
A clay-biochar composite was prepared through slow pyrolysis of a mixture of bentonite clay and sweet sorghum bagasse. The adsorption of cationic dyes, namely, toluidine blue (TB) and malachite green (MG), by the clay-biochar composite was investigated to determine the adsorption mechanism and its sorption potential. Bentonite clay, sweet sorghum b...
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 of copper. In this study carbonatite samples were obtained from a mining company in South Africa. The carbonatite samples were leach...
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 efficient and cost-effective ways of removing heavy metals from water, the development of different water treatment technologies are imp...
Several nanoparticles (Cu 2 O, SnO, ZnO) have been intensively studied and applied in wastewater treatment research, with TiO 2 gaining popularity because of its stability, affordability, large band gap, recyclability and its efficiency in photocatalysis. This study reports on the influence of solubilising matrices on TiO 2 nanoparticle synthesis....
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 assess the mobilization of metal from coal tailings collected from a Witbank Stream 4 in the province of Mpumalanga, South Africa. Var...
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 be removed using effective methods. In this study, egg shell adsorbent was prepared through physico-chemical treatment including im...
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) in a stirred Erlenmeyer flask with 10% solid at free pH in acidic sulphate system. It appears that, the mineral dissolution is to...
For environmental and aesthetic purposes it has become essential that mine dump rocks either blend into the environment or be used in the production of other products. Lately, there has been a constant need to produce more durable road and construction material and to develop an alternative for granite countertops and flooring. For the visibility o...
In this study, an insoluble nanospongebiopolymer composite was synthesized,using a combinedprocess of amidation reaction, cross-linking polymerization, and sol-gel method to obtain a phosphorylated multiwalled carbon nanotube-cyclodextrin/silverdoped titania (pMWCNT-βCD/TiO2-Ag). This work mainly emphasized on the removal of lead (Pb2+) and cobalt...
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 such as lead could negatively affect the health of consumers ingesting contaminated water and must therefore be removed from existing...
The performance of an anaerobic moving bed biofilm reactor (MBBR) containing AnoxKaldnes TM K5 model for the treatment of raw acid mine drainage (AMD) was investigated for the reduction of sulphate and chemical oxygen demand using a consortium of sulphate reducing bacteria (SRB) dominated by Proteobacteria. The MBBR was enriched for 4 weeks, follow...
Fresh water pollution by dyes from various industries is raising a lot of concern lately. Despite their well-known toxicity to humans, azo dyes make up over half of the used dye population. Rhodamines are also a well-used class of dyes in industry. This study employed a cost effective, energy efficient, environmentally benign method to degrade Meth...
The water purification process at Eskom includes a reverse osmosis (RO) treatment plant. There are several limitations to this process depending on the water characteristics. The most common problems limiting the success of water purification include scaling, biological fouling and corrosion. This study is mainly focused on reducing scale forming a...
Biodiesel production is increasing internationally as an alternative fuel. This is due to the rapid depletion of non-renewable energy sources. Pure biodiesel product can be obtained by washing the product with hot water. This results in a huge quantity of wastewater that is unsafe for disposal in normal drainage systems. Treatment of this wastewate...
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, such as in aqueous solutions. After ionization occurs, there are positively and negatively charged groups on the polymer chain. Polyampholytes are able to ab...
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 beans and brewery waste were explored for the removal of Cd from single and multi-component solutions. The biochars were prepared b...
South Africa is an arid country with an annual average rainfall less than half of the world's average rainfall. The industrial sector uses 11% of this limited amount of water. Eskom is one of these users. Within the water treatment system at the Grootvlei power station, reverse osmosis (RO) is used. The retentate from the membranes is pumped into a...
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. A study was conducted to investigate the photocatalytic property of tin dioxide in an attempt to degrade a polycyclic aromatic hyd...
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 to water were used in this study. These MFCs were made from M + fine clay which were fired to create a ceramic pot. All four of...
Questions
Questions (4)
Dear Colleagues,
Based on your research expertise, you are invited to contribute a paper in our upcoming special issue "Innovations in Nanotechnology for Wastewater and Acid Mine Drainage Treatment" in Minerals Journal. The development of smart nanomaterials (e.g. flocculants/coagulants, photocatalysts and adsorbents) responding perfectly to the robustness and diversity of the emerging pollutants is crucial for the design of an effective, sustainable and eco-friendly water treatment system. Contributions to this issue must therefore address topics related to the innovative techniques for the development, characterization and application of nanomaterials for the removal of organic and inorganic pollutants from polluted water.
You can find more information follow the link below or the documents attached.
Are the research funds allocated where needed and used efficiently?
Are the researchers doing enough to assist to the betterment of our society?
In my understanding: Expressing existing scientific principles in a way you appreciate better to primarily serve your own needs.
