Enhanced bioelectroremediation of a complexly contaminated river sediment through stimulating electroactive degraders with methanol supply

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院环境生物技术重点实验室

	Enhanced bioelectroremediation of a complexly contaminated river sediment through stimulating electroactive degraders with methanol supply
	Zhao, Youkang; Li, Zhiling; Ma, Jincai; Yun, Hui; Qi, Mengyuan; Ma, Xiaodan; Wang, Hao; Wang, Aijie; Liang, Bin
刊名	JOURNAL OF HAZARDOUS MATERIALS
	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.
内容类型	期刊论文
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.