Nidheesh, P. V. and Khatri, Jayraj and Singh, Anantha T. S. and Gandhimathi, R. and Ramesh, S. T. (2018) Review of zero-valent aluminium based water and wastewater treatment methods. Chemosphere, 200. pp. 621-631. ISSN 00456535

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Abstract

Zero-valent metals (ZVM) are widely used to remove heavy metals, contaminants, toxicity, etc. from water and wastewater. Zero-valent aluminium (ZVAl) has large surface area and high surface reactivity. It has enormous flexibility for the in-situ application. ZVAl can be applied as either a single or a bimetallic system as well as advanced oxidation processes (AOPs). It is observed that ZVAl is capable of generating hydroxyl and sulfate radicals in water medium, which remove non-biodegradable pollutants from aqueous solution. ZVAl-based processes can remove non-biodegradable organic contaminants from water medium within a short duration. ZVAl is also used as a reducing agent. It is efficient to reduce toxic hexavalent chromium to less toxic trivalent chromium. ZVAl, in various combinations in bimetallic system (Fe/Al, Pd/Al, Cu/Al), is able to remove various contaminants from aqueous medium. Overall, it can be concluded that ZVAl-based methods for water and wastewater treatment are promising environmental technologies.

Item Type:	Article
Uncontrolled Keywords:	Zero-valent Aluminium; Water; Wastewater, Reducing Agent; Single System; Bimetallic System; Advanced Oxidation Processes
Subjects:	Industrial Wastewater Treatment & Disposal Water Pollution Water Treatment Waste Water Management
Divisions:	UNSPECIFIED
Depositing User:	Dr. Nidheesh P V
Date Deposited:	13 Jan 2021 11:53
Last Modified:	13 Jan 2021 11:53
URI:	http://neeri.csircentral.net/id/eprint/1285

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