土壤中产脲酶微生物分离及对重金属的固化  

Isolation of Urease Producing Bacteria from Soil and Its Mineralization on Heavy Metal

作　　者：李萌[1] 郭红仙[2] 程晓辉[2] 

机构地区：[1]北京工商大学理学院/北京市植物资源研究开发重点实验室,北京100048 [2]清华大学土木工程系,北京100084

出　　处：《湖北农业科学》2013年第14期3280-3282,共3页Hubei Agricultural Sciences

基　　金：国家自然科学基金项目(50908122)

摘　　要：从苗圃土壤中分离具有产脲酶活性的细菌,对其进行鉴定,并利用其对镍、铜、铅、钴、锌和镉等重金属进行去除。结果表明,土壤中产脲酶微生物对镍、铜、铅、钴、锌和镉等重金属的去除率达88%~99%。土壤中微生物可以通过生物成矿作用,固化土壤和污水中的重金属。这些微生物可以在重金属生物修复中发挥重要作用。The urease producing bacteria was isolated from the nursery garden soil and was characterized, then was used for mineralizing nickel, copper, lead, cobalt, zinc and cadmium. The results showed that the selected bacteria had high removal effects on nickel, copper, lead, cobalt, zinc and cadmium, the removal rates ranged from 88% to 99%. Microorganisms can mineralize the heavy metals in soil and water by biomineralization process. Such microorganisms could play on important role in bioremediation of heary metals.

关 键 词：生物成矿 重金属 产脲酶微生物 碳酸盐沉积 

分 类 号：Q93-331[生物学—微生物学] X53[环境科学与工程—环境工程]