摘要
文中首先阐述了重金属污染土壤的途径与特点。介绍了当前几类主要的重金属污染土壤修复方法:物理化学方法、植物修复法、微生物修复法、动物修复法等的技术要点,详述了各自的技术特点及机理,并对它们的修复效能、环境友好性等进行了比较。从土壤的特性出发,区分出了3种典型的遭受重金属污染的土壤:农业土壤、城市土壤、矿区土壤,并从国内外最新的重金属污染修复实践中选取了适合各自土壤类型的修复方法进行了重金属污染土壤的治理探讨。最后,对土壤重金属污染修复技术的发展进行了展望。
In this paper, firstly the approaches and the characteristics of soil pollution by heavy metals were introduced, and followed by the introduction of remediation technologies for heavy metal polluted soils such as physico-chemical remediation, phytoremedlation, bioremedlation and animal remediation. Their technical characteristics and mechanisms were described in detail and their performance and environment-friendly property were compared. Based on the soil property, three kinds of typical soil were found being polluted by heavy metals, i. e. , agricultural soils, urban soils and mine soils, for which corresponding remediation technology for every kind of soil was studied adopting technologies from practice home and abroad. Finally, the development of remediation technology for heavy metal polluted soils was prospected.
出处
《四川环境》
2012年第1期118-122,共5页
Sichuan Environment
基金
国家自然科学基金项目(11175081)
湖南省科技计划重点项目(2011SK2015)
湖南省高校创新平台基金项目(09K076)
湖南省研究生科研创新项目(CX2011B375)
关键词
土壤
重金属
修复
Soil
heavy metal
remediation
