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전해 산화법에 의한 시안 함유 폐수 처리

Treatment of Wastewater Containing Cyanide by Electro-Oxidation

손성호^† 정도원¹ 주재백¹ 조원일 박대원

Seong-Ho Son^† Do-Won Chung¹ Jae-Back Ju¹ Won-Il Choe Dae-Won Pak

한국과학기술연구원 수질환경연구센터 ¹홍익대학교 화학공학과

Water Environment Research Center, Korea Institute of Science and Technology, Korea ¹Department of Chemical Engineering, Hongik University, Korea

hcdw@kist.re.kr

HWAHAK KONGHAK, February 2000, 38(1), 92-96(5), NONE

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Abstract

전기 화학적 처리법에 의한 폐수 내의 시안의 산화 및 구리의 회수에 대한 연구를 수행하였다. 전해 처리를 이용하여 폐수 내의 시안 및 구리를 80%이상 제거할 수 있었으며, 수리학적 체류시간 및 극간거리가 감소할수록, 전압이 증가할수록 시안의 산화율 및 구리의 추출률은 증가하였으며, 또한 전압이 감소할수록, 극간 거리가 감소할수록 양극 및 음극의 전류효율은 증가하였으나, 수리학적 체류시간은 전류효율에 큰 영향을 주지 않았다.

This research has performed to study the oxidation of cyanide and recovery of copper in wastewater. The concentration of cyanide and copper reduced by 80% through the electrochemical treatment. The oxidation rate of cyanide and the recovery rate of copper increased as the hydraulic retention time and the distance between cathode and anode decreased. And, those rates were proportional to the increment of applied potential. Cathodic and anodic current efficiency however increased as the potential and the distance between cathode and anode decreased. The hydraulic retention time showed no effect on the current efficiency.

Keywords

Wastewater Treatment Cyanide Copper Complex Electrochemical Current Efficiency Hydraulic Retention Time Distance between Cathode and Anode

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