摘要:通过FeSO4、A12(SO4)3、PAC、PFS以及自制的高聚铁无机复合混凝剂(CFPS)强化处理钢铁工业废水,研究了不同混凝剂对废水的浊度、CODcr、UV254、铁的去除以及对出水pH的影响.试验结果表明:CFPS对浊度、CODcr、UV254以及对铁的去除效果好于FeSO4、A12(5O4)3、PAC和PFS.在最佳投药范围内(2~20mg/L),经CFPS处理后的废水,平均浊度、CODcr分别为1.39(NTU)、21.09mg/L,平均去除率分别为99.00%、81.58%.CFPS对铁的去除率最高为99.65%,沉后水中的铁为0.105mg/L.经CFPS处理后的废水水质优于钢铁工业废水回用标准.
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