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采用硫酸亚铁沉淀-沉渣回流-次氯酸钠氧化工艺处理CN-含量为4mg/L、S2-含量为6mg/L的煤气洗涤废水,CN-的去除率可达95%以上,S2-的去除率近100%。
The removal rate of CN- can reach more than 95% by using ferrous sulfate precipitation-sediment reflux-sodium hypochlorite oxidation process to treat gas scrubbing wastewater with CN-content of 4mg / L and S2-content of 6mg / L, and the removal rate of S2- 100%.