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Browsing by Subject "Cryptocrystalline magnesite"

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Adsorption of phosphate from municipal effluents using cryptocrystalline magnesite: complementing laboratory results with geochemical modelling

Author: Masindi, Vhahangwele ; Gitari, WM ; Pindihama, KG Date: Nov 2015 The use of low-cost and locally available material in the treatment of wastewater has recently become an issue of interest, and magnesite as a low-cost material has been used for the removal of heavy metals in wastewater and has also shown ... Read more
Fractional and sequential recovery of inorganic contaminants from acid mine drainage using cryptocrystalline magnesite

Author: Masindi, Vhahangwele ; Ndiritu, JG Date: Jun 2017 This study evaluated the fractional and sequential recovery of inorganic contaminants from acid mine drainage (AMD) using cryptocrystalline magnesite. Batch experimental approach was used to fulfil the goals of this study. The obtained results ... Read more
Fractional and step-wise recovery of chemical species from acid mine drainage using calcined cryptocrystalline magnesite nano-sheets: An experimental and geochemical modelling approach

Author: Masindi, Vhahangwele ; Ndiritu, JG ; Maree, JP Date: Apr 2018 In this study, a process of fractional and step-wise recovery of metals from Acid Mine Drainage (AMD) using calcined cryptocrystalline magnesite was explored. pH Redox Equilibrium (in C language) (PHREEQC) was used to complement the experimental ... Read more
Integrated treatment of acid mine drainage using cryptocrystalline magnesite and barium chloride

Author: Masindi, Vhahangwele Date: Aug 2017 This study endeavours to report the efficiency of a hybrid approach in the treatment of acid mine drainage. Cryptocrystalline magnesite was used to pre-treat acid mine drainage and barium chloride was used to remove the residual sulphate ... 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
Remediation of acid mine drainage using magnesite and its bentonite clay composite

Author: Masindi, Vhahangwele Date: Dec 2015 Wastewaters originating from mining activities are usually acidic and often contain high concentrations of Fe, Mn, Al and SO 2 in addition to traces of Pb, Co, Ni, Cu, Zn, Mg, Ca and Na. This wastewater impacts surface and subsurface water ... Read more
Removal of arsenic from wastewaters by cryptocrystalline magnesite: complimenting experimental results with modelling

Author: Masindi, Vhahangwele ; Mugera Gitari, W Date: Feb 2016 Availability of arsenic in waterbodies has posed devastating impacts to terrestrial and aquatic organisms. As such, prudent and pragmatic technologies need to be developed to troubleshoot and solve the problem of arsenic in aquatic ecosystems. ... Read more
Removal of boron from aqueous solution using cryptocrystalline magnesite

Author: Masindi, Vhahangwele ; Gitari, MW Date: May 2016 The present study aimed to evaluate the efficiency of using cryptocrystalline magnesite to remove boron ions from aqueous systems. Batch experimental protocols were used to evaluate the adsorption capacity of magnesite for boron. Parameters ... Read more
Synthesis of nanocomposite of cryptocrystalline magnesite-bentonite clay and its application for phosphate removal from municipal effluents

Author: Masindi, Vhahangwele ; Gitari, WM ; Pindihama, KG Date: Jul 2015 In the present study, nanocomposite of cryptocrystalline magnesite-bentonite clay was used as a novel technology for removal of phosphates from municipal effluents. Vibratory ball miller was used for fabrication of the composite. Removal of ... Read more

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Browsing by Subject "Cryptocrystalline magnesite"

Browsing by Subject "Cryptocrystalline magnesite"

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