高浓度硫化染色废水处理新工艺研究

A Study on New Purification of High Concentration Sulphur Dyeing Sewege

采用混凝沉淀－铁屑过滤－碱析组合工艺处理高浓度硫化染色废水。生产性试验结果表明；此工艺对硫化物、ＣＯＤ、ＢＯＤＳ和色度的去除率分别达９７．０％、８４．７％、８５．７％和９８．９％，处理后出水的各项污染指标均符合国家排放标准，具有系统运行稳定，操作管理简便，工程投资少，处理费用低等优点。

The combined technology of coagulative precipitation-iron chippings filtering-alkaline separation was ed to purify the high concentration sulphur dyeing sewage. The results in the mode of production showed that the removel rates of sulphide, COD, BOD5 and colority were 97.0%,87;4%, 85.7% and 98.9% respectively. Every pollution index is up to the National Water Emission Standard.This technology system has the advantage in run stable,operation and management easy,engineering invest low,and treatment cost cheap.