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Browsing by Author "Gumbo, JR"

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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
Effective removal of Congo red dye from aqueous solution using activated MgO-nanoparticles

Author: Rasilingwania, TE ; Gumbo, JR ; Masindi, V ; Muedi, KL ; Mbhele, Nkhangweleni R Date: Jul 2023 Herein, the removal of Congo red (CR) dye from aqueous solution using MgO nanoparticles (MgONPs) was reported. Batch experiments were used to fulfil the objectives of this study. Specifically, the one-factor-at-a-time (OFAAT) mode where the ... Read more
Evaluation of a low cost technology to manage algal toxins in rural water supplies

Author: Pindihama, GK ; Gumbo, JR ; Oberholster, Paul J Date: Dec 2011 South Africa is a water scarce country with freshwater resources that are deteriorating mostly due to anthropogenic activities. Several dams in South Africa are eutrophic and present potential health risks to water consumers and users. ... Read more
Evaluation of the efficacy of halloysite nanotubes in the removal of acidic and basic dyes from aqueous solution

Author: Ngulube, T ; Gumbo, JR ; Masindi, Vhahangwele ; Maity, Arjun Date: Jun 2019 The present work describes the removal of Direct Red 81, Methyl Orange, Methylene Blue and Crystal Violet from aqueous solution using halloysite nanotubes. The clay mineral was physicochemically characterized using various methods. The ... Read more
Preparation and characterisation of high performing magnesitehalloysite nanocomposite and its application in the removal of methylene blue dye

Author: Ngulube, T ; Gumbo, JR ; Masindi, Vhahangwele ; Maity, Arjun Date: May 2019 Nanoparticles have novel characteristics enabling them to efficiently decontaminate water hence the application of nanotechnology in wastewater treatment is being widely explored to tackle water pollution challenges. Industries are in a quest ... Read more
The presence of toxic and non-toxic Cyanobacteria in the sediments of the Limpopo River Basin: Implications for human health

Author: Magonono, M ; Oberholster, Paul J ; Addmore, S ; Stanley, M ; Gumbo, JR Date: Jul 2018 The presence of harmful algal blooms (HABs) and cyanotoxins in drinking water sources poses a great threat to human health. The current study employed molecular techniques to determine the occurrence of non-toxic and toxic cyanobacteria species ... Read more
An update on synthetic dyes adsorption onto clay based minerals: A state-of-art review

Author: Ngulube, T ; Gumbo, JR ; Masindi, Vhahangwele ; Maity, Arjun Date: Apr 2017 Dyes are growing to be a problematic class of pollutants to the environment. The disposal of dyes in water resources has bad aesthetic and health effects, hence the need to remove them from the environment. The need for treatment methods that ... Read more

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Browsing by Author "Gumbo, JR"

Browsing by Author "Gumbo, JR"

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