铁铜内电解-膨润土组合工艺处理含铬废水  

The Treatment of Chromate Waste Water with Fe-Cu Internal Electrolysis Combining with Bentonite

作　　者：司婧[1] 邓欢欢[1] 薛早早[1] 王濛濛[1] 葛利云[1] 袁陈聪[1] 

机构地区：[1]温州医学院环境与公共卫生学院,浙江温州325035

出　　处：《环境科学与管理》2011年第5期71-74,共4页Environmental Science and Management

基　　金：浙江省大学生科技创新计划(2009R413027);温州市科技计划项目(Y20080102);温州医学院校级课题(QTJ07022)

摘　　要：研究利用铁铜内电解工艺和膨润土吸附的联合作用,对含铬废水进行处理。含铬模拟废水首先经过铁铜内电解法装置,该出水再经膨润土吸附,以达到去除效果。并考察此组合工艺的各种影响因素。结果表明:(1)铁铜内电解预处理确定最佳反应参数为:铁铜用量之比为8:1,反应时间为100 min,pH值为3.0;(2)膨润土最佳吸附条件为:膨润土用量为2 g/l,反应时间为20 min;(3)在最佳反应条件下,对初始浓度分别为30 mg/l和60 mg/l的实际制革废水中的铬进行了处理,都取得较好的去除效果,其Cr(VI)去除率分别为99.54%和99.32%。In this paper,a new combining process called Fe-Cu internal electrolysis combining with bentonite in treating chromate waste water was introduced.Chromate waste water was firstly treated by Fe-Cu internal electrolysis,then the effluent was moved to the next jar with bentonite.The influence on the removal of Cr（VI） was investigated here.The results were：（1）in the process of Fe-Cu internal electrolysis,the optimal reaction parameters were 3.0 of pH value,100 min of contact time and 8：1 of the ratio of weight of iron and copper;（2）in the process of bentonite absorption,the optimal reaction conditions were 4 g/l of bentonite dosage and 30 min of the reaction time;（3）in the two optimal reaction conditions,the tannery wastewater with the initial concentration of Cr（VI） were 30 mg/l and 60 mg/l were treated,respectively.The removal reached to 99.54% and 99.32%,respectively.

关 键 词：铁铜内电解 膨润土 铬 废水 

分 类 号：X703.1[环境科学与工程—环境工程]