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多相Fenton氧化-沉淀法处理2,3-二羟基琥珀酸铜废水

Keywords: 多相Fenton催化氧化,废水处理,络合重金属,2,3-二羟基琥珀酸铜

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Abstract:

针对工业废水中难以去除的络合态重金属,采用自制的负载型FeSO4/HS为催化剂,用Fenton-like氧化2,3-二羟基琥珀酸铜废水,并将游离出来的铜加碱沉淀除去。研究发现,当22O2为25mmol/L时负载型FeSO4/HS催化的催化活性最高。当H2O2分3次等量投加时获得最高COD和铜去除率。催化剂的活性随降解次数的增加而缓慢下降,可以通过补加亚铁的方法消除,亚铁补加量在0.4mg/L时效果最好,补加后催化剂的催化活性具有较好的持续性。

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