Removal of cadmium and cyanide from aqueous solutions through electrodialysis

Journal of the Brazilian Chemical Society

Luciano Marder¹  Guilherme O. Sulzbach¹  Andréa M. Bernardes¹  Jane Zoppas Ferreira¹ 

[1] ,Universidade Federal do Rio Grande do Sul Laboratório de Corrosão e Proteção de Metais Programa de Pós-Graduação em Engenharia de Minas, Metalúrgica e de MateriaisPorto Alegre RS ,Brazil

关键词: cadmium;    cyanide;    electrodialysis;    wastewater;   

DOI  :  10.1590/S0103-50532003000400018

来源: SciELO

【 摘 要 】

The discharge of galvanic industry wastewaters containing heavy metals and cyanide is one of the largest sources of water pollution. The use of the electrodialysis technique for the treatment of a synthetic wastewater containing approximately 0.0089 mol L-1 cadmium and 0.081 mol L-1 cyanide was studied using a five-compartment electrodialysis cell. The results demonstrate that the removal of cadmium and cyanide depends on the applied current density and it is limited by the precipitation of cadmium on the cation-exchange membrane in the diluate central cell compartment.

【 授权许可】

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