Micro-electrolysis technology for industrial wastewater treatment.

Abstract

Experiments were conducted to study the role of micro-electrolysis in removing chromaticity and COD and improving the biodegradability of wastewater from pharmaceutical, dye-printing and papermaking plants. Results showed that the use of micro-electrolysis technology could remove more than 90% of chromaticity and more than 50% of COD and greatly improved the biodegradability of pharmaceutical wastewater. Lower initial pH could be advantageous to the removal of chromaticity. A retention time of 30 minutes was recommended for the process design of micro-electrolysis. For the use of micro-electrolysis in treatment of dye-printing wastewater, the removal rates of both chromaticity and COD were increased from neutral condition to acid condition for disperse blue wastewater; more than 90% of chromaticity and more than 50% of COD could be removed in neutral condition for vital red wastewater.

Cite this paper

@article{Jin2003MicroelectrolysisTF, title={Micro-electrolysis technology for industrial wastewater treatment.}, author={Yi-zhong Jin and Yue-feng Zhang and Wei Li}, journal={Journal of environmental sciences}, year={2003}, volume={15 3}, pages={334-8} }