Review on mechanism of microbiological effects on heavy metals

With the express development of metallurgy industry, the soil of mining area has suffered heavily contamination. In current, the research on method of remediation of heavy metal-contaminated soil has become a hotspot in the field of environment protecting. There are physical and chemical methods to address heavy metal pollution. The physico-chemical methods are highly liable to secondary pollution in addition to high cost. The method of bioremediation is more favorable for its efficiency in treating heavy metals pollution. Heavy metal-contaminated soil can be solved by leaching, oxidation -reduction and adsorption of microorganism or mycorrhiza. This article describes the mechanism between heavy metals and microorganisms, hoping to benefit the future related research.