Analysis on Phytoremediation Technology of Heavy Metal Polluted Soil

Abstract

近年来，土壤重金属污染状况非常严峻。植物修复技术具有永久性解决土壤污染、防止水土流失、防止二次污染，改良土壤等优势，作为一种生态效益高、成本低的污染治理手段，应用前景广阔，具有较强的实用性和实效性。植物修复中超积累植物对污染土壤的修复效果较为显著，本文结合超富集植物定义，特点，修复机理及回收应用等方面，探讨超富集植物对重金属污染土壤的修复研究，以期为超富集植物修复重金属污染土壤提供一定理论依据。 In recent years, the situation of heavy metal pollution in soil is quite serious. Phytoremediation technology has the advantages of permanently solving soil pollution, preventing soil erosion, pre-venting secondary pollution, improving soil, etc. As a kind of pollution control method with high ecological benefit and low cost, it has broad application prospects and strong practicality and ef-fectiveness. The super-accumulated plants in phytoremediation have significant effects on the restoration of contaminated soil. In this paper, combined with the definition, characteristics, repair mechanism and recycling application of super-enriched plants, this paper discussed the research on the remediation of heavy metal-contaminated soil by super-enriched plants, in order to provide a theoretical basis for the super-enriched plants to repair heavy metal contaminated soil.