多品硅厂含氟酸性废水的处理

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对某多晶硅厂排放的酸性高浓度含氟废水,采用石灰中和沉淀,以亚铁盐作混凝剂和高分子PAM作絮凝剂用混凝沉降法进行了处理.结果发现在最佳实验条件下,150.00 mL废水中加入CaO、FeSO4和PAM用量分别是33.3、6.7 g/L和667.00 mg/L.废水中F浓度下降至10.00 mg/L以下,排放废水含氟量达到国家标准.
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