Nidheesh, P V and Anantha Singh, T S (2017) Arsenic removal by electrocoagulation process: Recent trends and removal mechanism. Chemosphere, 181. pp. 418-432. ISSN 0045-6535

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Abstract

Arsenic contamination in drinking water is a major issue in the present world. Arsenicosis is the disease caused by the regular consumption of arsenic contaminated water, even at a lesser contaminated level. The number of arsenicosis patients is increasing day-by-day. Decontamination of arsenic from the water medium is the only one way to regulate this and the arsenic removal can be fulfilled by water treatment methods based on separation techniques. Electrocoagulation (EC) process is a promising technology for the effective removal of arsenic from aqueous solution. The present review article analyzes the perfor- mance of the EC process for arsenic removal. Electrocoagulation using various sacrificial metal anodes such as aluminium, iron, magnesium, etc. is found to be very effective for arsenic decontamination. The performances of each anode are described in detail. A special focus has been made on the mechanism behind the arsenite and arsenate removal by EC process. Main trends in the disposal methods of sludge containing arsenic are also included. Comparison of arsenic decontamination efficiencies of chemical coagulation and EC is also reported

Item Type:	Article
Uncontrolled Keywords:	Arsenic; Electrocoagulation; Arsenicosis; Water Treatment; Electrochemical Method
Subjects:	Environmental Pollution Water Pollution Chemistry, Chemical Technology Water Treatment
Divisions:	UNSPECIFIED
Depositing User:	Dr. Nidheesh P V
Date Deposited:	04 May 2017 07:32
Last Modified:	04 May 2017 07:32
URI:	http://neeri.csircentral.net/id/eprint/900

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