Table of Contents
Journal of Waste Management
Volume 2013 (2013), Article ID 164780, 6 pages
http://dx.doi.org/10.1155/2013/164780
Research Article

The Effective Electrolytic Recovery of Dilute Copper from Industrial Wastewater

1Department of Chemical Engineering, National Cheng Kung University, Tainan 701, Taiwan
2Sustainable Environment Research Center, National Cheng Kung University, Tainan 701, Taiwan

Received 17 January 2013; Revised 19 March 2013; Accepted 19 March 2013

Academic Editor: Francesco Veglio

Copyright © 2013 Teng-Chien Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Electroplating copper industry was discharged huge amount wastewater and cause serious environmental and health damage in Taiwan. This research applied electrical copper recovery system to recover copper metal. In this work, electrotreatment of a industrial copper wastewater ([Cu] = 30000 mg L−1) was studied with titanium net coated with a thin layer of RuO2/IrO2 (DSA) reactor. The optimal result for simulated copper solution was 99.9% copper recovery efficiency in current density 0.585 A/dm2 and no iron ion. Due to high concentration of iron and chloride ions in real industrial wastewater, the copper recovery efficiency was down to 60%. Although, the copper recovery efficiency was not high as simulated copper solution, high environmental economic value was included in the technology. The possibility of pretreating the wastewater with iron is the necessary step, before the electrical recovery copper system.