[1] Chinese Res Inst Environm Sci, Technol Ctr Heavy Met Cleaner Prod Engn, Beijing 100012, Peoples R China
[2] Beijing Inst Technol, Sch Mat Sci & Engn, Environm & Energy Dept, Beijing 100081, Peoples R China
[3] Yanan Univ, Sch Petr & Environm Engn, Yanan 716000, Peoples R China