CaCl_2改性蛭石对Pb^(2+)的吸附性能研究  

Study on Adsorption Property of CaCl_2 Modified Vermiculite to Pb^(2+)

作　　者：崔迎辉[1,2] 曹加云[2] 管登高[2] 戴泽航 吴彩文[2] 

机构地区：[1]成都理工大学地球科学学院,四川成都610059 [2]成都理工大学材料与化学化工学院,四川成都610059

出　　处：《广州化工》2016年第24期60-62,共3页GuangZhou Chemical Industry

摘　　要：针对重金属污染严重威胁人类健康这一问题,文章使用改性蛭石研究了其对Pb^(2+)的吸附性能。将天然蛭石加入到一定浓度的CaCl_2溶液中,得到CaCl_2改性蛭石,从理论上阐述了改性方法的机理,提出最佳改性方案,并通过SEM表征其形貌特征。从蛭石用量、反应时间、溶液浓度、pH值等方面探讨了CaCl_2改性蛭石对Pb^(2+)的吸附效果。实验表明CaCl_2改性蛭石可以很好的用于Pb^(2+)的吸附处理。The problem of heavy metal pollution is a serious threat to human health.The adsorption of Pb^(2+) was studied by modified vermiculite.Natural vermiculite was added to CaCl_2 modified vermiculite in a certain concentration of CaCl_2 solution,the mechanism of the modified method was explained in theory,the optimum scheme was put forward,and the morphology of the modified method was characterized by SEM.In terms of the amount of vermiculite,reaction time,concentration,pH value,etc,CaCl_2 modified vermiculite adsorption effect of Pb^(2+) was discussed.Experimental results showed that the modified vermiculite can be used as a new approach to further treatment of urban sewage waste.

关 键 词：蛭石 CA CL2 重金属 吸附 

分 类 号：TQ424.25[化学工程]