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酸洗磷化废水处理后为什么在反应池中水的颜色是黄色

2025-03-14 21:51:48

推荐回答（1个）

回答1：

污水处理后颜色发黄的原因一般是在后序物化澄清处理中使用了铁盐作为絮凝剂，铁盐残留在水体中经氧化，造成还原反应。在物化处理中使用铁盐作为絮凝剂，如果使用次氯酸钠作为脱色剂会还原铁离子，使出水色度泛黄，反而增大了色度。

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