湖南锰矿区土壤重金属污染修复研究

Abstract

金属矿区及周边土壤重金属污染已成为严重的环境问题之一。湖南锰矿区在开采过程中土壤遭受严重破坏，并且导致生态系统退化。本文结合当今湖南锰矿区的资源开采现状，总结了国内外对重金属污染土壤的修复研究，全面介绍了当前的各种修复措施：物理修复、化学修复、微生物修复以及植物修复等，并着重介绍了联合修复技术，同时指出了各项措施的进展、优缺点、存在的问题，对螯合剂-微生物-植物联合修复进行了展望，指出了其不仅能够节约修复成本，又能够降低生物毒性以及环境风险性。 The heavy metal pollution of metal mining and the surrounding soil has become one of the serious environmental problems. During the long-term mining process of manganese, the soil in the manganese mining areas of Hunan was seriously damaged, and led to the degradation of the ecosystem. In this paper, the present situation of resource exploitation in Hunan manganese mine is summarized, and the restoration of heavy metal contaminated soil at home and abroad is summarized: physical remediation, chemical remediation, microbial remediation, phytoremediation, etc., and the combination remediation technology is emphatically introduced. The paper also points out the progress, advantages, disadvantages and the existing problems of these measures and the chelating agent and microbe and plants combined remediation is prospected. It points out that it is not only can save repair costs, but also can reduce the biotoxicity and environmental risk.