Affiliation: | College of Power Engineering, Chongqing University, Chongqing 400030,P.R. China;;College of Power Engineering, Chongqing University, Chongqing 400030,P.R. China;;College of Power Engineering, Chongqing University, Chongqing 400030,P.R. China;;Guangdong Yuan Da environmental engineering company, Guangzhou 510630,P.R. China |