含氰污水处理工程设计体会

DESIGN OF CYANIDE-CONTAINING WASTEWATER TREATMENT WORKS

龙泉金矿在全泥氰化提金过程中产生合氰化物１７４．７６ｍｇ／Ｌ的洗涤废水．通过碱式氯化法处理后，再由渣浆泵送入尾矿库进行自然净化作用，污水得到进一步净化，尾矿库溢流废水氰化物浓度低于０．５ｍｇ／Ｌ，废水排入小梅溪后，下游第一个居民取水点氰化物浓度低于０．００４ｍｇ／Ｌ，达到了国家规定的标准。

This paper describes the technology for treating the wash wastewater containing 174. 76mg/L cyanide formed during the process of full-slime gold-extraction in Longquan Gold Mine.This wastewater after alkaline chlorination is fed to tails reservoir by slurry pump to undertakenatural purification. After this additional purification, the overflow wastewater with cyande concentration below 0. 5mg/L from tails reservoir is discharged to Xiaomei River and cyanide concentration of the first intake in the downstream is below 0. 004mg/L, which meets the national standard.