Effects of sodium hypochlorite and high pH buffer solution in electrokinetic soil treatment on soil chromium removal and the functional diversity of soil microbial community
文献类型：期刊论文
| 作者 | Cang, Long; Zhou, Dong-Mei; Alshawabkeh, Akram N.; Chen, Hai-Feng |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2007-04-02 |
| 卷号 | 142期号:1-2页码:111-117 |
| 关键词 | electrokinetics chromium sodium hypochlorite red soil microbial functional diversity |
| ISSN号 | 0304-3894 |
| DOI | 10.1016/j.jhazmat.2006.07.067 |
| 通讯作者 | Zhou, Dong-Mei(dmzhou@issas.ac.cn) |
| 英文摘要 | Effects of sodium hypochlorite (NaClO), applied as an oxidant in catholyte, and high pH buffer solution on soil Cr removal and the functional diversity of soil microbial community during enhanced electrokinetic treatments of a chromium (Cr) contaminated red soil are evaluated. Using pH control system to maintain high alkalinity of soil together with the use of NaClO increased the electrical conductivities of soil pore liquid and electroosmotic flux compared with the control (Exp-01). The pH control and NaClO improved the removal of Cr(VI) and total Cr from the soil. The highest removal percentages of soil Cr(VI) and total Cr were 96 and 72%, respectively, in Exp-04 when the pH value of the anolyte was controlled at 10 and NaClO was added in the catholyte. The alkaline soil environment and introduction of NaClO in the soil enhanced the desorption of Cr(VI) from the soil and promoted Cr(III) oxidation to mobile Cr(VI), respectively. However, the elevated pH and introduction of NaClO in the soil, which are necessary for improving the removal efficiency of soil Cr, resulted in a significantly adverse impact on the functional diversity of soil microbial community. It suggests that to assess the negative impact of extreme conditions for enhancing the extraction efficiencies of Cr on the soil properties and function is necessary. (c) 2006 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | CONTAMINATED SOILS ; REMEDIATION ; CATHOLYTE ; CR(III) |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| WOS类目 | Engineering, Environmental ; Engineering, Civil ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000245839100010 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558685 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Zhou, Dong-Mei |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 2.Northeastern Univ, Dept Civil & Environm Engn, Boston, MA 02115 USA |
| 推荐引用方式 GB/T 7714 | Cang, Long,Zhou, Dong-Mei,Alshawabkeh, Akram N.,et al. Effects of sodium hypochlorite and high pH buffer solution in electrokinetic soil treatment on soil chromium removal and the functional diversity of soil microbial community[J]. JOURNAL OF HAZARDOUS MATERIALS,2007,142(1-2):111-117. |
| APA | Cang, Long,Zhou, Dong-Mei,Alshawabkeh, Akram N.,&Chen, Hai-Feng.(2007).Effects of sodium hypochlorite and high pH buffer solution in electrokinetic soil treatment on soil chromium removal and the functional diversity of soil microbial community.JOURNAL OF HAZARDOUS MATERIALS,142(1-2),111-117. |
| MLA | Cang, Long,et al."Effects of sodium hypochlorite and high pH buffer solution in electrokinetic soil treatment on soil chromium removal and the functional diversity of soil microbial community".JOURNAL OF HAZARDOUS MATERIALS 142.1-2(2007):111-117. |
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来源：南京土壤研究所
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