膨润土对苯并三氮唑与Cu^(2+)的吸附行为研究  

Adsorption for BTA and Cu^(2+) with bentonite

作　　者：范红[1] 潘湛昌[1] 张晃初 龚俊 胡光辉 魏志钢[1] 肖楚民[1] 

机构地区：[1]广东工业大学轻工化工学院,广东广州510006 [2]胜宏科技(惠州)有限公司,广东惠州516211

出　　处：《工业水处理》2013年第1期38-41,共4页Industrial Water Treatment

基　　金：国家自然科学基金(20803014);广东省科技计划资助项目(2011B031000013);胜宏科技(惠州)有限公司产学研基金

摘　　要：以膨润土对含苯并三氮唑(BTA)和Cu2+的模拟废水进行吸附研究。结果表明:膨润土吸附BTA的最佳pH为3.5,对Cu2+的吸附率随pH升高而增大;pH为3.5时,对BTA、Cu2+的最大吸附率分别达到92.1%、40.3%;膨润土对100 mg/L BTA和Cu2+溶液的饱和吸附量分别为81.3、22.9 mg/g,吸附平衡时间为80～100 min。动力学拟合表明,吸附过程能用Freundlich和Langmuir吸附等温方程描述。The adsorption capability of bentonite for BTA and Cu2＋ has been researched. The results show that the optimum pH of bentonite adsorption effect on BTA is 3.5, and Cu2＋ adsorption rate increases with the increase of pH. When the pH is 3.5 ,the BTA and Cu2＋ adsorption rates by using bentonite are 92.1% and 40.3% ,respectively. The saturated adsorption capacity of bentonite for 100 mg/L BTA and Cu2＋ solution are 81.3 mg/g and 22.9 mg/g respec- tively. The time of equilibrium adsorption is 80-100 min. The kinetics fitting shows that the adsorption process can be described by Freundlich and Langmuir adsorption isothermal equation.

关 键 词：膨润土 苯并三氮唑 CU2+ 吸附 

分 类 号：X703[环境科学与工程—环境工程]