Chellammal, S. and Raghu, S. and Kalaiselvi, P. and Subramanian, G. (2010) Electrolytic recovery of dilute copper from a mixed industrial effluent of high strength COD. Journal of Hazardous Materials, 180. pp. 91-97. ISSN 0304-3894

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Abstract

In this study, the electrochemical treatment has been investigated in the real acidic effluent of copperphthalocyanine dye manufacturing plant. Galvanostatic batch electrolyses have been carried out in an undivided cell using stainless steel as cathode, dimensionally stable anode (DSA) and graphite as anodes at different current densities and temperatures. The influence of these variables on current efficiency, cell voltage, energy consumption and deposit quality was reported. Under optimized conditions, the maximum copper recovery of 98% and COD removal efficiency of 87.3% with the energy consumption of about 11.23 kWh/kg of Cu and 6.08 kWh/kg of COD, respectively at 30 ◦C were achieved in the acidic raw effluent using 2D parallel-plate cathode. While in 3D stainless steel turning cathode reactor, 99.5% of copper can efficiently be recovered from dilute solution with an acceptable current efficiency of about 56.8% with minimum energy consumption of 2.37 kWh/kg of Cu. The experimental results suggested that the efficiency of copper removal is hindered by the presence of organic species in the mixed industrial effluent.

Item Type:	Article
Uncontrolled Keywords:	Electrolytic treatment; Copper recovery; COD removal; Mixed effluent; Energy consumption
Subjects:	Electrohydrometallurgy Pollution Control
Divisions:	UNSPECIFIED
Depositing User:	ttbdar CECRI
Date Deposited:	09 Apr 2012 02:20
Last Modified:	09 Apr 2012 02:20
URI:	http://cecri.csircentral.net/id/eprint/427

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