Progress of Phytoremediation on Soil Polluted by Mercury,Cadmium and Chromium
(1College of Resources and Environment, Southwest University, Chongqing 400716;
Huang Hui1, Chen Hong1,2
2
Abstract: Heavy metal pollution in soil has been a hot research focus in the world. Phytoremediation has become the prominent due to its advantages of convenience, economy and no secondary pollution. This article focuses on phytoremediation, phytoremediation adding chemical regulation agents, and plant-microbial phytoremediation were discussed, and the directions of future research were briefly stated. Key words: soil; heavy metal pollution; phytoremediation 0 引言 工业革命以后, 随着各种行业的发展, 资源的过度 开采和严重的环境问题产生。土壤重金属污染因其排 放面广以及重金属独有的物理化学性质, 成为了很难 治理的污染之一。据中国农业部调查, 全国遭受重金 属污染的土地面积占污水灌区总面积的 64.8%, 一些 地方生产的粮食、 蔬菜、 水果等食物中重金属含量超标 或已接近临界值 。传统的修复重金属污染土壤的方 法主要有客土、 填埋、 土壤清洗及通过物理化学作用固 化、 提取等, 这些方法都不同程度地存在着处理效率 低、 运行成本高, 破坏土壤原有生物环境等缺陷 。土 壤重金属污染的植物修复技术 (phytoremediation) 是
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Chongqing Key Laboratory of Agricultural Resources and Environment, Chongqing 400716)
remediation on soil which was polluted by mercury, cadmium and chromium. The problems about
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