Research Progress of Bioremediation on Heavy-Metal Contaminated Soil

This paper provides a brief introduction to the hazards and situation of soils contamination by heavy metals in China. Compared with the traditional physical and chemical technologies,bioremediation technology has the advantages of simplicity and high efficiency with wide developing and research prospects. However,bioremediation technology is still at the stage of research and development at present with some shortcomings in the actual application of large-scale heavy metal remediation,including phytoremediation,micro-remediation,animal remediation and associated remediation. The progress in the research of bioremediation for heavy-metal contaminated soil is reviewed,including phytoremediation,micro-remediation,animal remediation and associated remediation,and their advantages and disadvantages. Finally,some disadvantages of bioremediation in soil pollution treatment are presented and the future of this research field is looked into.