%0 Journal Article
%T Comparison of two different combined bioleaching-electrokinetic remediation processes<br>两种生物沥滤-电动修复联合技术的比较
%A YU Yitong
%A TIAN Guangming
%A HE Miaomiao
%A <br>俞一统
%A 田光明
%A 和苗苗
%J 环境科学学报
%D 2009
%I 
%X The combination of bioleaching and electrokinetic remediation has proven to be an effective method to remove heavy metals from municipal sewage sludge. In our study, a simulation was conducted to compare the efficiency of heavy metal removal rates of two different combination processes. Using electrokinetic remediation after bioleaching for 4 d, the contents of Cu and Zn in sewage sludge decreased to 60.5 mg·kg-1 and 170 mg·kg-1, respectively. Simultaneous bioleaching and electrokinetic remediation, on the other hand, reduced the concentration of Cu and Zn to 122.8 mg·kg-1 and 110 mg·kg-1, respectively. Both combined processes allowed the concentrations of Cu and Zn to reach the Chinese standard for land application of sewage sludge. Compared to simultaneous bioleaching and electrokinetic remediation, electrokinetic remediation after bioleaching is preferred because it consumes less energy.
%K sewage sludge
%K bioleaching
%K electrokinetic remediation
%K heavy metal<br>污泥
%K 生物沥滤
%K 电动修复
%K 重金属
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=66C18CB61ADE9863038202FB7B11921E&yid=DE12191FBD62783C&vid=771469D9D58C34FF&iid=CA4FD0336C81A37A&sid=D5C9DC4EF2F78008&eid=BBF7D98F9BEDEC74&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=0&reference_num=21