Biodetoxification of silver-cyanide from electroplating industry wastewater

被引：43

作者：

Patil, YB ^{[1
]}

Paknikar, KM ^{[1
]}

机构：

[1] Agharkar Res Inst, Div Microbial Sci, Pune 411004, Maharashtra, India

来源：

LETTERS IN APPLIED MICROBIOLOGY | 2000年 / 30卷 / 01期

关键词：

D O I：

10.1046/j.1472-765x.2000.00648.x

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

A bacterial consortium capable of utilizing metal-cyanides as a source of nitrogen was used to develop a microbiological process for the detoxification of silver-cyanide from electroplating wastewater. When the treatment was carried out in a 27-1 rotating biological contactor (RBC) in continuous mode, the system could achieve > 99.5% removal of 0.1 mmol l(-1) silver-cyanide (approximate to 5 mg l(-1) cyanide and 10 mg l(-1) silver) in 10 h with sugarcane molasses (0.1 ml l(-1)) as carbon source. The silver ions set free during biodegradation were efficiently adsorbed by the bacterial biomass. The RBC-treated effluent was found to be safe for discharge into the environment, as confirmed by chemical, analysis and fish bioassay studies.

引用

页码：33 / 37

页数：5