聚硅酸锌絮凝剂对含汞废水处理的研究  

Rmove of mercury( Ⅱ) from waste water by poly-zinc silicate sulfate( PZSS) flocculation

作　　者：田玲 黄雪莉[1] 王雪枫[1] 

机构地区：[1]石油天然气精细化工教育部和自治区重点实验室新疆大学化学化工学院,新疆乌鲁木齐830046

出　　处：《现代化工》2014年第10期84-87,共4页Modern Chemical Industry

基　　金：国家自然科学基金资助项目(21067013);石油天然气精细化工重点实验室开放课题项目(XJDX0908-2012-4)

摘　　要：针对硫化钠法处理后含汞水样,利用聚硅酸锌絮凝剂(PZSS)进行絮凝处理,并与聚合氯化铝的絮凝效果进行对比。结果表明,PZSS的去浊和除汞效果明显优于聚合氯化铝。同时,对PZSS中的SiO2质量分数、锌硅摩尔比、活化时间、投加量、pH等因素对絮凝效果和除汞效率的影响进行了研究。The mercury water after the treatment with sodium sulfide method is flocculated using poly-zinc silicate sulfate（PZSS） flocculant.The flocculation performance of PZSS is compared with that of the polyaluminium chloride.The results show that the performance of PZSS for removing the turbidity and the mercury is much better than that of polyaluminium.The effects of the percent of SiO2,molar ratio of zinc to silica in PZSS,active time,dosage and pH on the flocculation performance and the removal rate of the mercury are studied.

关 键 词：汞 废水 硫化钠法 聚硅酸锌 

分 类 号：X803.2[环境科学与工程—环境工程]