【摘要】 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％。更多还原

【Abstract】 The coal-gas washing wastewater containing 4mg/L of cyanide and 6mg/L of sulfied has been treated by a ferrous sulfate precipitation-precipitate backflow-sodium hypochlorite oxidation process.The removal efficiencies of cyanide and sulfide could come up to 99% and almost 100% respectively.更多还原