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陶瓷印花废水处理的混凝剂及工艺条件

Keywords: PAC,PAM,PFS,混凝剂,陶瓷印花废水,脱色率,浊度去除率,悬浮物去除率

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Abstract:

采用混凝剂聚合氯化铝(PAC)、聚丙烯酰胺(PAM)、聚合硫酸铁(PFS)对陶瓷印花废水进行混凝沉降处理,监测水样的吸光度、浊度、悬浮物,以脱色率、浊度去除率、悬浮物去除率评价混凝处理的效果。结果表明:PAC是陶瓷印花废水沉降处理的理想混凝剂;水样的吸光度、浊度、悬浮物随混凝剂用量增大和沉降时间延长而呈降低趋势,而脱色率、浊度去除率、悬浮物去除率随混凝剂和沉降时间的增大呈增大的趋势;PAC投加量为20mg/L,沉降时间约为24h,水样脱色率达到90.0%,而当PAC投加量达到100mg/L,沉降时间约为4h,陶瓷印花水的脱色率可达到96.0%。证明了药剂用量的增加与沉降时间的延长对混凝过程具有增效作用。

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