Effect of electric intensity on the microbial degradation of petroleum pollutants in soil
文献类型：期刊论文
| 作者 | Li, Tingting1,2; Guo, Shuhai1; Wu, Bo1,2; Li, Fengmei1,2; Niu, Zhixin1,2 |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2010 |
| 卷号 | 22期号:9页码:1381-1386 |
| 关键词 | Electro-bioremediation Electric Filed Microbial Activity Petroleum |
| ISSN号 | 1001-0742 |
| DOI | 10.1016/S1001-0742(09)60265-5 |
| 英文摘要 | Electro-bioremediation is an innovative method to remedy organic-polluted soil. However, the principle of electrokinetic technology enhancing the function of microbes, especially the relationship of electric intensity and biodegradation efficiency, is poorly investigated. Petroleum was employed as a target organic pollutant at a level of 50 g/kg (mass of petroleum/mass of dry soil). A direct current power supply was used for tests with a constant direct current electric voltage (1.0 V/cm). The petroleum concentrations Were measured at 3275-3285 nm after extraction using hexane, the group composition of crude oil was analyzed by column chromatography. The water content of soil was kept 25% (m/m). The results indicated the degradation process was divided into two periods: from day 1 to day 40, from day 41 to day 100. The treatment of soil with an appropriate electric field led the bacteria to have a persistent effect in the whole period of 100 days. The highest biodegradation efficiency of 45.5% was obtained after treatment with electric current and bacteria. The electric-bioremediation had a positive effect on alkane degradation. The degradation rate of alkane was 1.6 times higher in the soil exposed to electric current than that treated with bacteria for 100 days. A proper direct current could stimulate the microbial activities and accelerate the biodegradation of petroleum. There was a positive correlation between the electric intensities and the petroleum bioremediation efficiencies with a coefficient of 0.9599. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000282072900012 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://210.72.129.5/handle/321005/121671]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Guo, Shuhai |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Tingting,Guo, Shuhai,Wu, Bo,et al. Effect of electric intensity on the microbial degradation of petroleum pollutants in soil[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2010,22(9):1381-1386. |
| APA | Li, Tingting,Guo, Shuhai,Wu, Bo,Li, Fengmei,&Niu, Zhixin.(2010).Effect of electric intensity on the microbial degradation of petroleum pollutants in soil.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,22(9),1381-1386. |
| MLA | Li, Tingting,et al."Effect of electric intensity on the microbial degradation of petroleum pollutants in soil".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 22.9(2010):1381-1386. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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