Enhanced bioelectroremediation of a complexly contaminated river sediment through stimulating electroactive degraders with methanol supply
文献类型：期刊论文
| 作者 | Zhao, Youkang; Li, Zhiling; Ma, Jincai; Yun, Hui; Qi, Mengyuan; Ma, Xiaodan; Wang, Hao; Wang, Aijie; Liang, Bin |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2018-05-05 |
| 卷号 | 349页码:168-176 |
| 关键词 | Bioelectroremediation Methanol stimulation Electrical stimulation Electroactive degraders |
| ISSN号 | 0304-3894 |
| 文献子类 | Article |
| 英文摘要 | Bioelectroremediation is an efficient, sustainable, and environment-friendly remediation technology for the complexly contaminated sediments. Although various recalcitrant pollutants could be degraded in the electrode district, the degradation efficiency was generally confined by the low total organic carbon (TOC) content in the sediment. How to enhance the electroactive degraders' activity and efficiency remain poorly understood. Here we investigated the bioeletroremediation of a complexly contaminated river sediment with low TOC in a cylindric sediment microbial fuel cell stimulated by methanol. After 200 days treatment, the degradation efficiencies of total petroleum hydrocarbons (TPH), polycyclic aromatic hydrocarbons (PAH), and cycloalkenes (CYE) in the electrode district with methanol stimulation were 1.45-4.38 times higher compared with those in the non-electrode district without methanol stimulation. The overall electrode district communities were significantly positively correlated with the variables of the enhanced TPH, PAH, CYE and TOC degradation efficiencies (p < .01). The joint electrical and exogenous methanol stimulation selectively enriched electroactive degraders (Geobacter and Desulfobulbus) in the anode biofilms, and their proportion was markedly positively correlated with the characteristic and total pollutants degradation efficiencies (p < .001). This study offers a new insight into the response of key electroactive degraders to the joint stimulation process. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41254]  |
| 专题 | 生态环境研究中心_中国科学院环境生物技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhao, Youkang,Li, Zhiling,Ma, Jincai,et al. Enhanced bioelectroremediation of a complexly contaminated river sediment through stimulating electroactive degraders with methanol supply[J]. JOURNAL OF HAZARDOUS MATERIALS,2018,349:168-176. |
| APA | Zhao, Youkang.,Li, Zhiling.,Ma, Jincai.,Yun, Hui.,Qi, Mengyuan.,...&Liang, Bin.(2018).Enhanced bioelectroremediation of a complexly contaminated river sediment through stimulating electroactive degraders with methanol supply.JOURNAL OF HAZARDOUS MATERIALS,349,168-176. |
| MLA | Zhao, Youkang,et al."Enhanced bioelectroremediation of a complexly contaminated river sediment through stimulating electroactive degraders with methanol supply".JOURNAL OF HAZARDOUS MATERIALS 349(2018):168-176. |
入库方式： OAI收割
来源：生态环境研究中心
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