腐植酸在重金属污染土壤修复中的应用研究进展

Advanced Research on Application of Humic Acid in Heavy Metal Contaminated Soil Remediation

土壤重金属污染已成为威胁食品安全和人类健康的重要问题。腐植酸作为一种天然的复合有机物,广泛用于改良退化土壤等方面。本文分别从国内土壤重金属污染现状、腐植酸在重金属污染土壤修复中的应用效果以及作用机理3个方面系统综述了国内外相关的研究进展,同时提出了重金属污染土壤修复领域存在的问题及腐植酸修复污染土壤的应用前景,以期为利用腐植酸修复重金属污染土壤提供科学依据。

Heavy metal contaminated soil has become an important issue threatening food safety and human health.As a natural composite organic matter,humic acid is widely used to improvement of degraded soil,etc..This paper reviewed the research progress of humic acid in the field of heavy metal contaminated soil remediation from three aspects:the status quo of soil heavy metal contamination in China,the effect of humic acid on soil heavy metal contamination,and the mechanism of remediation.The problems in the field of heavy metal contaminated soil remediation and the application prospect of humic acid to remediate contaminated soil were proposed,in order to provide scientific basis to heavy metal contaminated soil remediaton in China by using humic acid.