碱化活性污泥吸附处理含重金属废水的实验研究  

Experimental Study of Treatment of Heavy Metal Wastewater by Adsorption of Alkalized Active Sludge

作　　者：冯俊生[1] 朱宏[1] 李玲[1] 张志军[1] 袁根勤 

机构地区：[1]江苏工业学院环境与安全工程系,江苏常州213164 [2]姜堰市环保局苏陈监察中队,江苏泰州225500

出　　处：《江苏工业学院学报》2007年第3期34-36,共3页Journal of Jiangsu Polytechnic University

摘　　要：采用碱化活性污泥吸附去除Cu2+、Zn2+、Cd2+、Pb2+4种重金属离子,研究了pH、污泥投加量、吸附时间、重金属离子质量浓度4种影响因素对碱化活性污泥吸附去除上述4种重金属离子的影响。实验结果表明:经碱化的活性污泥的吸附量增大,投加量相对减小,且达到吸附饱和的时间明显缩短。在最佳试验条件下,碱化活性污泥对Cu2+、Zn2+、Cd2+、Pb2+都能达到较好的去除效果,去除率大小顺序为:Cu2+>Pb2+>Cd2+>Zn2+,碱化活性污泥对Cu2+的去除率达到90%左右。Treating wastewater containing copper ion（Ⅱ）,zinc ion（Ⅱ）,Cadmium ion（Ⅱ） and lead（Ⅱ） by adsorption of alkalized active sludge,the effects on heavy metal ion by adsorption of alkalized active sludge have been studied under different conditions of the value of pH,sludge amounts,adsorptive time,concentration of heavy metals.The results show that adsorptive capacity of alkalized active sludge increases,addition reduces relatively and adsorptive saturation time shortens.In optimum experimental condition,alkalized active sludge has the better removal rate for treating copper ion（Ⅱ）,zinc ion（Ⅱ）,Cadmium ion（Ⅱ） and lead（Ⅱ）,the size order of removal rates is Cu^2＋〉Pb^2＋〉Cd^2＋〉Zn^2＋,alkalized active sludge has best removal rate which is up to about 90% and stability for treating copper ion（Ⅱ）.

关 键 词：碱化活性污泥 重金属离子 吸附 

分 类 号：X703.1[环境科学与工程—环境工程]