污泥中重金属的生物沥滤及其机理分析  

Fate of Heavy Metals in the Bioleaching of Municipal Sewage Sludge and Its Mechanism Analysis

作　　者：朱南文[1] 蔡春光[1] 吴志超[2] 道路 张乐华[1] 高廷耀[2] 

机构地区：[1]上海交通大学环境科学与工程学院,上海200240 [2]同济大学环境科学与工程学院,上海200092 [3]镇江环境保护局,镇江212001

出　　处：《上海交通大学学报》2003年第5期801-804,共4页Journal of Shanghai Jiaotong University

基　　金：上海市水务局资助项目

摘　　要：为解决污泥农用的主要障碍之一——污泥中重金属含量超标的问题 ,采用生物法对污泥中的重金属沥滤进行了研究 .试验结果表明 ,在土著硫杆菌的作用下 ,可使污泥中的 Cu、Zn、Cd、Cr、Ni、Pb分别有 77.7%、80 .3%、5 4 .1 %、38.5 %、71 .6%和 2 6.4%溶出 ;而硫氧化成硫酸可使污泥中的总大肠菌群大量减少 .污泥经生物沥滤后 。In order to solve the problem that high concentration of heavy metals in wastewater sludge limit the application of the sludge on agricultural land, an experiment for metals bioleaching by indigenous sulfur oxidizing bacteria present in sludge was conducted and evaluated. It was found that the heavy metals solubilization results reach 77.7%, 80.3%, 54.1%, 38.5%, 71.6% and 26.4% for Cu, Zn, Cd, Cr, Ni and Pb respectively, and the sulfate, as a result of sulfur oxidation by indigenous thiobacilli of sludge, allows a considerable reduction in the total coliforms.

关 键 词：重金属 硫杆菌 生物沥滤 总大肠菌群 污泥 

分 类 号：X799.3[环境科学与工程—环境工程]