期刊首页 优先出版 当期阅读 过刊浏览 作者中心 关于期刊 English

2015年 第9卷 第4期

摘要

关键词

相关研究

回顶部

《环境科学与工程前沿（英文）》 >> 2015年 第9卷 第4期 doi: 10.1007/s11783-014-0713-6

Washing out heavy metals from contaminated soils from an iron and steel smelting site

1. Center for Environmental Remediation, Institute of Geographical Sciences and Natural Resources, Chinese Academy of Sciences, Beijing 100101, China.2. University of Chinese Academy of Sciences, Beijing 100049, China

发布日期： 2015-06-25
HTML16 PDF 4 收藏 0

下一篇 上一篇

摘要

Washing is a promising method for separating contaminants bound to the particles of soil 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·L hydrochloric acid could achieve the remediation with the lowest costs.

相关研究