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Browsing by Author "Tutu, H"

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Application of magnesite–bentonite clay composite as an alternative technology for removal of arsenic from industrial effluents

Author: Masindi, Vhahangwele ; Gitari, MW ; Tutu, H ; De Beer, Marinda Date: Oct 2014 This study evaluated the feasibility of integrating amorphous magnesite and bentonite clay (composite) as an alternative technology for removing arsenic from industrial effluents. The removal of arsenic from industrial effluents by using ... Read more
The effect of temperature and methanol–water mixture on pressurized hot water extraction (PHWE) of anti-HIV analogoues from Bidens pilosa

Author: Gbashi, S ; Njobeh, P ; Steenkamp, P ; Tutu, H ; Madala, N Date: Jun 2016 Pressurized hot water extraction (PHWE) technique has recently gain much attention for the extraction of biologically active compounds from plant tissues for analytical purposes, due to the limited use of organic solvents, its cost-effectiveness, ... Read more
Efficiency of ball milled South African bentonite clay for remediation of acid mine drainage

Author: Masindi, Vhahangwele ; Gitari, MW ; Tutu, H ; De Beer, Morris Date: Dec 2015 The feasibility of using vibratory ball milled South African bentonite clay for neutralization and attenuation of inorganic contaminants from acidic and metalliferous mine effluents has been evaluated. Treatment of acid mine drainage (AMD) ... Read more
Fate of inorganic contaminants post treatment of acid mine drainage by cryptocrystalline magnesite: Complimenting experimental results with a geochemical model

Author: Masindi, Vhahangwele ; Gitari, MW ; Tutu, H ; De Beer, Morris Date: Mar 2016 This study assessed the fate of inorganic contaminants post treatment of acid mine drainage by cryptocrystalline magnesite. To accomplish that, neutralization and metal attenuation were evaluated and complemented with simulations using ... Read more
Neutralization and attenuation of metal species in acid mine drainage and mine leachates using magnesite: a batch experimental approach

Author: Masindi, Vhahangwele ; Gitari, WM ; Tutu, H ; De Beer, Morris ; Nekhwevha, N Date: Aug 2014 This paper evaluates the potential application of amorphous magnesite for remediation of Acid Mine Drainage (AMD). Magnesite was mixed with simulated AMD at specific S/L ratios and agitated in an orbital shaker and its capacity to remove ... Read more
Passive remediation of acid mine drainage using cryptocrystalline magnesite: a batch experimental and geochemical modelling approach

Author: Masindi, Vhahangwele ; Gitari, MW ; Tutu, H ; De Beer, Morris Date: Oct 2015 Acid mine drainage is generated when mining activities expose sulphidic rock to water and oxygen leading to generation of sulphuric acid effluents rich in Fe, Al, SO (Sup4) and Mn with minor concentrations of Zn, Cu, Mg, Ca, Pb depending on ... Read more
Removal of boron from aqueous solution using magnesite and bentonite clay composite

Author: Masindi, Vhahangwele ; Gitari, MW ; Tutu, H ; De Beer, Morris Date: Mar 2015 The removal of boron from industrial effluents using the composite was studied in batch equilibration technique. The effects of equilibration time, adsorbent dosage, concentration and pH on removal of boron were investigated. The experiments ... Read more
Simultaneous sorption of As, B, Cr, Mo and Se from coal fly ash leachates by Al(sup3+)-pillared bentonite clay: implication for the construction of activated geo-synthetic clay liner

Author: Masindi, Vhahangwele ; Mugera, GW ; Tutu, H Date: Mar 2017 The present study reports the optimum conditions for intercalating the Al(sup3+) species to bentonite clay matrices and evaluate the potential of using Al(sup3+)-modified bentonite clay (Alum-Bent) for removal of oxyanionic species of As, B, ... Read more
Synthesis of cryptocrystalline magnesite–bentonite clay composite and its application for neutralization and attenuation of inorganic contaminants in acidic and metalliferous mine drainage

Author: Masindi, Vhahangwele ; Gitari, MW ; Tutu, H ; De Beer, Morris Date: Dec 2015 The primary aim of this study was to synthesize cryptocrystalline magnesite–bentonite clay composite by mechanochemical activation and evaluate its usability as low cost adsorbent for neutralization and attenuation of inorganic contaminants ... Read more

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Browsing by Author "Tutu, H"

Browsing by Author "Tutu, H"

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