The Influence of Solid Concentration on the Removal of Zn, Cu from Sewage Sludge by Bioleaching Technique

被引：0

作者：

Sun, Yuhuan ^{[1
]}

Li, Qing ^{[1
]}

Yang, Zhihai ^{[1
]}

机构：

[1] Qingdao Univ Sci & Technol, Qingdao, Peoples R China

来源：

2010 THE SECOND CHINA ENERGY SCIENTIST FORUM, VOL 1-3 | 2010年

关键词：

Sewage sludge; Heavy metals; Bioleaching; Solid density;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In this study, sequential selective extraction was used to study the influence of sludge concentration of 2% similar to 10%, while using S and FeSO(4)center dot 7H(2)O as the substrate, on bioleaching of heavy metals from sewage sludge. Experimental results show that Cu and Zn removal rate was different while using different sludge concentration after leaching 14 days, and the lower of sludge concentration, the Cu, Zn removal rate was higher. Using S as the substrate, the removal rate of Cu was highest while 6% solids concentration in the sludge samples, and the removal rate was 10.1%. 4% solids concentration in the sludge samples Zn removal of 24.9%. Using FeSO(4)center dot 7H(2)O as the substrate, the 2% solid concentration had the highest Cu, Zn removal rate, and the removal rate was 31.4% and 34.7%, respectively. Cu and Zn hand the best bioleaching results when the solid concentration was 4% in this research.

引用

页码：1211 / 1214

页数：4