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隔膜电解法回收利用电厂锅炉EDTA清洗废水研究

Keywords: 电厂锅炉EDTA清洗废水,隔膜电解,电流,阴极电解液初始pH值,Fe/EDTA摩尔比

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Abstract:

以涂Ir/Sn钛网板作阳极，以不锈钢网板作阴极，采用隔膜电解法处理电厂锅炉EDTA清洗废水。实验结果表明，电流、阴极电解液初始pH值和Fe/EDTA摩尔比对粉末铁析出速率影响较大，粉末铁电解析出的适宜条件是电解电流为1.0A、阴极电解液初始pH值为5.6、阴极电解液Fe/EDTA摩尔比足够高。采用隔膜电解结合反渗透膜系统处理电厂锅炉EDTA清洗废水，可同时高效回收纳米级粉末铁和EDTA。

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