Speciation change and redistribution of arsenic in soil under anaerobic microbial activities
文献类型：期刊论文
| 作者 | Jia, Yongfeng2; Ming, Yang2; Xu, Liying2; Wu, Xi1,2; Wang, Shaofeng2; Yuan, Zidan2; Xiao, Fan2 |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2016-01-15 |
| 卷号 | 301页码:538-546 |
| 关键词 | Arsenic Speciation Soil Anaerobic Microbial Sulfide |
| ISSN号 | 0304-3894 |
| DOI | 10.1016/j.jhazmat.2015.09.030 |
| 英文摘要 | Arsenic speciation and behavior in soil are strongly affected by redox conditions. This work investigated speciation transformation and redistribution of arsenic in soil under anaerobic conditions. The effect of microbial sulfidogenesis on these processes was examined by addition of sulfate to the incubation systems. As(III) was found to be the dominant arsenic species in solution during the process of anaerobic incubation. The change of dissolved As concentration with incubation time showed "M" shaped profiles, e.g. the curves displaying two peaks at approximately 24h and 240h for the system with added sulfate. Arsenic was released and reduced to As(III) in the early stage of the incubation, and then resequestered into the solid phase. After excess sulfide was generated, the resequestered arsenic was released again (probably due to the dissolution of arsenic sulfide by dissolved sulfide ions) via the formation of thioarsenite. At the end of the incubation process, most of the dissolved arsenic was removed again from solution. The findings may have important implications to the fate of arsenic in flooded sulfur-rich soils. (C) 2015 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000367407200058 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://210.72.129.5/handle/321005/122367]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Wang, Shaofeng |
| 作者单位 | 1.Nanpiao Environm Protect Bur Huludao, Liaoning 125027, Peoples R China 2.Chinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, Yongfeng,Ming, Yang,Xu, Liying,et al. Speciation change and redistribution of arsenic in soil under anaerobic microbial activities[J]. JOURNAL OF HAZARDOUS MATERIALS,2016,301:538-546. |
| APA | Jia, Yongfeng.,Ming, Yang.,Xu, Liying.,Wu, Xi.,Wang, Shaofeng.,...&Xiao, Fan.(2016).Speciation change and redistribution of arsenic in soil under anaerobic microbial activities.JOURNAL OF HAZARDOUS MATERIALS,301,538-546. |
| MLA | Jia, Yongfeng,et al."Speciation change and redistribution of arsenic in soil under anaerobic microbial activities".JOURNAL OF HAZARDOUS MATERIALS 301(2016):538-546. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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