Current situation of soil contamination by heavy metals and research progress in bio-remediation technique

被引：5

作者：

Qian, Chunxiang ^{[1
]}

Wang, Mingming ^{[1
]}

Xu, Yanbo ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Southeast University

来源：

Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition) | 2013年 / 43卷 / 03期

关键词：

Bio-remediation; Heavy metal; Microorganism mineralization; Soil contamination;

D O I：

10.3969/j.issn.1001-0505.2013.03.041

中图分类号：

学科分类号：

摘要：

The current situation of soil contamination by heavy metals is analysed. It is found that the main sources of contamination are mining and waste water from galvanization factories. The different techniques of physical-chemical method and bioremediation method are compared, and it is found that the bioremediation method manifests an emerging direction due to its merits, such as low cost, favorable effect, and easy operation. The bio-remediation includes plant remediation and microbial remediation. The current researches of microbial remediation include adsorption, oxidation-reduction and mineralization of heavy metal ions by microorganisms, and the mechanism of mineralization can transfer heavy metal ions into solid mineral by means of the organic matter secreted by microorganisms. At last, the development trend and research direction of microbial remediation are propoced.

引用

页码：669 / 674

页数：5

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