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	Washing out heavy metals from contaminated soils from an iron and steel smelting site
	Zhu G. X.; Guo, Q. J.; Yang, J. X.; Zhang, H. Z.; Wei, R. F.; Wang, C. Y.; Peters, M.; Zhou, X. Y.; Yang, J.
	2015
关键词	heavy metals soil washing toxicity reduction index iron and steel smelting site sequential extraction remediation edta removal acid bcr zn technologies speciation scale
英文摘要	Washing is a promising method for separating contaminants bound to the particles of soil ex-situ by chemical mobilization. Laboratory batch washing experiments were conducted using deionized water and varying concentrations of oxalic acid, citric acid, tartaric acid, acetic acid, hydrochloric acid and ethylenediaminetetra acetic acid (EDTA) to assess the efficiency of using these chemicals as washing agents and to clean up heavy metals from two heavily polluted soils from an iron and streel smelting site. The toxicity reduction index and remediation costs were analyzed, and the results showed that the soils were polluted with Cd, Pb and Zn. Hydrochloric acid and EDTA were more efficient than the other washing agents in the remediation of the test soils. The maximum total toxicity reduction index showed that 0.5 mol center dot L-1 hydrochloric acid could achieve the remediation with the lowest costs.
出处	Frontiers of Environmental Science & Engineering
卷	9
期	4
页	634-641
收录类别	SCI
语种	英语
ISSN号	2095-2201
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/38538]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Zhu G. X.,Guo, Q. J.,Yang, J. X.,et al. Washing out heavy metals from contaminated soils from an iron and steel smelting site. 2015.

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