酸化镍硅交联膨润土的制备及吸附性能研究  

Preparation and Properties of Bentonite Cross-Linked by Sillicon and Aluminum

作　　者：刘德汞[1] 曹书勤[1] 

机构地区：[1]信阳师范学院化学化工学院,河南信阳464000

出　　处：《信阳师范学院学报（自然科学版）》2007年第4期459-461,共3页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：河南省科技攻关项目(0524080003)

摘　　要：用酸化镍硅交联膨润土处理模拟含磷、酚废水.实验表明：吸附剂用量为8 g/L,pH=8-9,吸附时间15-20 min为吸附的最佳条件,在此条件下苯酚的去除率为87%,磷的去除率达到98.0%.与未酸化镍硅交联膨润土相比酸化交联土对苯酚的去除率提高了4%,磷的去除率提高了11%.The Acid-activated and Ni-Si cross-linked bentonite is synthesized and used to adsorb phosphorus or phenol in imitated wastewater. The optimum adsorption was achieved at conditions of pH =8 -9, the amount of adsorbent 8g/L and stirring time 15 -20 rain. The phosphorus was removed by 98% and phenol by 87%. Compared with non-acid-activated and Ni-Si cross-linked bentonite, the removal ratio of phosphorus was improved by 11% and that of phenol by 4%.

关 键 词：膨润土 镍硅交联改性 吸附 水处理 

分 类 号：X703.5[环境科学与工程—环境工程]