纳米零价铁复合材料对污染土壤修复的最新进展

Recent advances on nano zero-valent iron composites for remediation of polluted soil

土壤污染严重威胁农产品的安全和人类健康。近几年来纳米零价铁(nZVI)复合材料由于环境友好、易于制备、价格低廉、优异化学活性等特点广泛地应用于污染土壤修复,但是对土壤中不同污染类型修复的调研较少。综述主要调研nZVI复合材料修复污染土壤中重金属、有机污染物和石油有机物的最新进展。重点评述nZVI复合材料的不同性质对污染土壤中各种污染物修复效果的影响,最后对n ZVI铁复合材料修复污染土壤得出结论并对未来方向进行展望。该综述为更好地应用nZVI复合材料对污染土壤的修复提供理论依据和指导。

Soil pollution severely threatens the safety of agricultural products and human health.In recent years,nano zero-valent iron(nZVI)composites have been widely utilized for remediation of polluted soil due to their environmental friendliness,easy synthesis,low cost and excellent chemical activity.However,few investigations on the remediation of the different contaminants in soils were available.In this review,the recent advances of remediation of polluted soil,including heavy metals,organic pollutants and oil pollutants,was reviewed in details.The effect of the different properties of nZVI-based composites on the remediation of various pollutants in soils was mainly evaluated.Lastly,the conclusions and prospective were put forward.This review will provide theoretical basis and guiding significance for the better application of nZVI-based composites to the remediation of polluted soil.