Vasudevan, S. and Lakshmi, J. and Jayaraj, J. and Sozhan, G. (2009) Remediation of phosphate-contaminated water by electrocoagulation with aluminium, aluminium alloy and mild steel anodes. Journal of Hazardous Materials, 164 (2-3). pp. 1480-1486. ISSN 0304-3894

PDF Restricted to Registered users only Download (536Kb) | Request a copy

Abstract

The present study provides an electrocoagulation process for the remediation of phosphate-contaminated water using aluminium, aluminium alloy and mild steel as the anodes and stainless steel as the cathode. The various parameters like effect of anode materials, effect of pH, concentration of phosphate, current density, temperature and co-existing ions, and so forth, and the adsorption capacity was evaluated using both Freundlich and Langmuir isotherm models. The adsorption of phosphate preferably fitting the Langmuir adsorption isotherm suggests monolayer coverage of adsorbed molecules. The results showed that the maximum removal efficiency of 99% was achieved with aluminium alloy anode at a current density of 0.2Adm−2, at a pH of 7.0. The adsorption process follows second-order kinetics.

Item Type:	Article
Uncontrolled Keywords:	Electrocoagulation; Phosphate; Aluminium alloy anode; Kinetics; Isotherm
Subjects:	Electroinorganic
Divisions:	UNSPECIFIED
Depositing User:	TTBD CECRI
Date Deposited:	02 Apr 2012 06:01
Last Modified:	02 Apr 2012 06:01
URI:	http://cecri.csircentral.net/id/eprint/498

Actions (login required)

View Item