聚硅酸铝的制备及对焦化废水中苯酚混凝去除性能研究  

Study on the preparation of polysilicate aluminum and the coagulation removal performance for phenol from coking wastewater

作　　者：刘睿[1,2] 杜志平 程芳琴[1] 白红娟[2] LIU Rui;DU Zhi-ping;CHENG Fang-qin;BAI Hong-juan(Institute of Resources and Environmental Engineering,Shanxi Collaborative Innovation Center of High Value-Added Utilization of Coal-Related Wastes,Shanxi University,Taiyuan 030006,China;College of Environment and Safety Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]山西大学低附加值煤基资源高值利用协同创新中心资源与环境工程研究所,山西太原030006 [2]中北大学环境与安全工程学院,山西太原030051

出　　处：《应用化工》2018年第9期1888-1891,共4页Applied Chemical Industry

基　　金：NSFC-山西煤基低碳联合基金重点项目(U1610222);三晋学者计划专项经费资助

摘　　要：以硅酸钠、氯化铝为主要原料,制备不同铝硅摩尔比的聚硅酸铝(PASiC)絮凝剂,对比聚硅酸铝和市售聚合氯化铝(PAC)对模拟废水浊度和苯酚的去除效果。结果表明,PASiC1(铝硅摩尔比为1. 0)对废水浊度去除率可达99%以上,对苯酚也有4. 6%的去除效果,絮凝剂PAC的苯酚仅去除了1%。PASiC对废水浊度和苯酚的共去除性能较优,为焦化废水的强化混凝预处理提供了有益思路。Polysilicate aluminum(PASiC)coagulant with different molar ratio of aluminum and silicon was prepared by using sodium silicate and aluminum chloride as the main raw materials.The turbidity and phenol removal efficiency of simulated wastewater were compared with that of polysilicate aluminum and commercial polyaluminum chloride(PAC).The results showed that the PASiC 1 can remove more than 99%of the turbidity of wastewater and also remove 4.6%of phenol,while only 1%of phenol is removed by traditional flocculant PAC.PASiC has better performance on turbidity of wastewater and total removal of phenol,which provides a useful idea for the coagulation pretreatment of coking wastewater.

关 键 词：焦化废水 聚硅酸铝 混凝 浊度 苯酚 

分 类 号：TQ09[化学工程] TQ133.1