摘要
有效降低城市污水处理厂污泥中重金属总量是污泥大量农用的关键。现阶段,国内外对于污泥中重金属的去除主要有化学试剂浸提、生物淋滤、电动修复及超临界流体萃取等方法。为此,从原理、研究现状及应用等方面对这些技术方法的研究进展进行综述,并比较了其对污泥中重金属的去除效率及优缺点,从而为污泥的无害化、资源化提供一定的理论依据。
Removing the total amount of heavy metals efficiently from sludge was the key of its land application. In this paper, a review of chemical extraction, bioleaching, electro reclamation, and supercritical fluid extraction （SFE） in removing heavy metals from sewage sludge is presented in aspect of principle, research actuality and application. Moreover, the efficiencies, advantages and disadvantages of these methods are compared in order to offer theories to innocent and utilization of the sewage sludge.
出处
《农机化研究》
北大核心
2007年第5期12-16,共5页
Journal of Agricultural Mechanization Research
基金
浙江省科技计划项目(2004C23024)
杭州市市属高校中重点实验室科技厅创新项目(2005133H04)
关键词
环境工程
污泥重金属
综述
化学浸提
生物淋滤
电动修复
超临界流体萃取
environmental engineering
heavy metal sewage sludge
summary
chemical extraction
bioleaching
electro reclamation
supercritical fluid extraction
