摘要
采用二氧化氯作为矿山含氰废水处理剂 ,在 pH 8 5～ 1 1 5范围内 ,对于含氰废液在 30min以内、ClO2 与CN- 浓度比≥ 3条件下 ,能达到 99%以上的除氰效果。处理后的废液 pH在 8～ 9范围 ,CN- 浓度 <0 5mg/L ,达到国家排放标准 ,处理效果优于传统次氯酸盐处理法。二氧化氯氧化法处理矿山含氰废水 ,具有投加剂量少 ,使用便捷 。
Chlorine dioxide is used as oxidant for the treatment of cyanogen-contained wastewater in mine.On the flowing conditions:pH 8.5～11.5,mixed time 30 min,∶≥3,the treatment ratio of cyanide can be up to 99%.The treated wastewater with pH 8～9,<0.5 mg/L is allowed to be discharged out directly.The oxidation of chlorine dioxide is better than the oxidation of hypochlorite for the treatment of cyanogen-contained wastewater,it has the advantages of less amount of oxidant added,easy operation and without secondary pollution etc.
出处
《无机盐工业》
CAS
2003年第2期42-43,58,共3页
Inorganic Chemicals Industry
关键词
二氧化氯
氧化法
研究
矿山含氰废水
废水处理
chlorine dioxide
cyanogen-contained wastewater in mine
treatment of wastewater
