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Calcined magnesite as an adsorbent for cationic and anionic dyes: characterization, adsorption parameters, isotherms and kinetics study

Author: Ngulube, T ; Gumbo, JR ; Masindi, Vhahangwele ; Maity, Arjun Date: Oct 2018 The ability of calcined magnesite for Methylene Blue (MB), Direct Red 81 (DR81), Methyl Orange (MO) and Crystal Violet (CV) dye removal was evaluated in this study. The experiments were designed to test the hypothesis that alkaline earth ... Read more
Integrated acid mine drainage management using fly ash

Author: Vadapalli, VRK ; Gitari, MW ; Petrik, LF ; Etchebers, O ; Ellendt, A Date: Jan 2012 Fly Ash (FA) from a power station in South Africa was investigated to neutralise and remove contaminants from Acid Mine Drainage (AMD). After this primary treatment the insoluble FA residue namely solid residue (SR) was investigated as a ... Read more
Mercury concentrations at a historically mercury-contaminated site in KwaZulu-Natal, South Africa

Author: Williams, CR ; Leaner, LJ ; Somerset, VS ; Nel, JM Date: Feb 2011 A mercury (Hg) processing plant previously operating in KwaZulu-Natal Province (South Africa) discharged Hg waste into a nearby river system causing widespread contamination since the 1980s. Although the processing plant ceased operation in ... Read more
Multi-residue method for the determination of selected veterinary pharmaceutical residues in surface water around Livestock Agricultural farms

Author: Fatoki, OS ; Opeolu, BO ; Genthe, Bettina ; Olatunji, OS Date: Dec 2018 A multi-residue method for the determination of the occurrence and prevalence levels of selected veterinary pharmaceutical residues in surface water was developed on a high performance liquid chromatography coupled to ultraviolet-visible ... Read more
Nickel(II) tetra-aminophthalocyanine modified MWCNTs as potential nanocomposite materials for the development of supercapacitors

Author: Chidembo, AT ; Ozoemena, KI ; Agboola, BO ; Gupta, V ; Wildgoose, GG ; Compton, RG Date: Nov 2010 The supercapacitive properties of nickel(II) tetraaminophthalocyanine(NiTAPc)/multi-walled carbon nanotube(MWCNT) nanocomposite films have been interrogated for the first time and found to possess a maximum specific capacitance of 981 ± 57 F ... Read more

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Browsing by Subject "Environmental science"

Browsing by Subject "Environmental science"

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