Effect of ferrous sulfate dosage and soil particle size on leachability and species distribution of chromium in hexavalent chromium-contaminated soil stabilized by ferrous sulfate
文献类型：期刊论文
| 作者 | Zhang, Ting-Ting; Xue, Qiang ; Li, Jiang-Shan; Wei, Ming-Li; Wang, Ping; Liu, Lei-; Wan, Yong
|
| 刊名 | ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
 |
| 出版日期 | 2019 |
| 卷号 | 38期号:2页码:500-507 |
| ISSN号 | 1944-7442 |
| 关键词 | hexavalent contaminated soil ferrous sulphate leachability chromium speciation |
| DOI | 10.1002/ep.12936 |
| 英文摘要 | Ferrous sulfate (FeSO4) is widely used to effectively stabilize hexavalent chromium (Cr(VI))-contaminated soil. The leaching behavior, Cr(VI) content, and chromium speciation distribution in the stabilized soil are the most important indexes for determining the effectiveness of reduction treatment. Numerous factors, such as reductant dosage and soil particle size, affect the stabilization process; these factors are relatively important. This study investigated the influence of FeSO4 dosage and soil particle size on leachability and speciation distribution of chromium in contaminated soil. Results showed that the increase in FeSO4 significantly reduced the leachability and Cr(VI) content in the soil given the increased reducible species that stem from an acid soluble fraction of chromium. The small particle size of the soil that contains a large surface area facilitated the reaction between Cr(VI) and FeSO4, thereby resulting in low leachability and high reducible species of Cr(VI) in the stabilized soil. The leached Cr(VI) concentration was exponentially correlated to Cr(VI) content in the stabilized soil, and the leachability of Cr from the stabilized soil was linearly correlated to the exchangeable phase of Cr. In addition, the leached Cr(VI) concentration from the stabilized soil conform to the US Environmental Protection Agency and China regulatory limits; meanwhile, considerable Cr(VI) remained in a few stabilized soil and exceeded the environmental quality standards for soil in China. These results illustrated the importance of a comprehensive assessment of Cr(VI)-contaminated soil, which is treated by reductants for enabling flexible future land use. (c) 2018 American Institute of Chemical Engineers Environ Prog, 38: 500-507, 2019 |
| WOS研究方向 | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000462079900022 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/15033]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China; 3.Hubei Key Lab Contaminated Clay Sci & Engn, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Ting-Ting,Xue, Qiang,Li, Jiang-Shan,et al. Effect of ferrous sulfate dosage and soil particle size on leachability and species distribution of chromium in hexavalent chromium-contaminated soil stabilized by ferrous sulfate[J]. ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY,2019,38(2):500-507. |
| APA | Zhang, Ting-Ting.,Xue, Qiang.,Li, Jiang-Shan.,Wei, Ming-Li.,Wang, Ping.,...&Wan, Yong.(2019).Effect of ferrous sulfate dosage and soil particle size on leachability and species distribution of chromium in hexavalent chromium-contaminated soil stabilized by ferrous sulfate.ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY,38(2),500-507. |
| MLA | Zhang, Ting-Ting,et al."Effect of ferrous sulfate dosage and soil particle size on leachability and species distribution of chromium in hexavalent chromium-contaminated soil stabilized by ferrous sulfate".ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY 38.2(2019):500-507. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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