Complete nitrogen removal and electricity production in Thauera-dominated air-cathode single chambered microbial fuel cell

doi:10.1016/j.cej.2018.08.161

CORC > 成都生物研究所 > 中国科学院成都生物研究所 > 食品安全与环境治理领域 > 应用与环境微生物研究

	Complete nitrogen removal and electricity production in Thauera-dominated air-cathode single chambered microbial fuel cell
	Yang, Nuan 1,2; Zhan, Guoqiang 2; Li, Daping 2; Wang, Xu 2; He, Xiaohong 2; Liu, Hong 1
刊名	CHEMICAL ENGINEERING JOURNAL
	2019
卷号	356 页码:506-515
关键词	Thauera-dominated denitrifying consortium Standard anaerobic SCMFC Electrochemically active bacteria (EAB) Complete nitrogen removal Electricity generation
ISSN号	1385-8947
DOI	10.1016/j.cej.2018.08.161
产权排序	1
文献子类	Article
英文摘要	Electrochemically active bacteria (EAB) usually catalyze the electrochemical reactions on the electrodes of microbial fuel cells (MFCs) to fulfill organic oxidation and electricity generation. In this work, an aerobic consortium of Thauera-dominated denitrifiers was investigated in anaerobic single chambered MFC (SCMFC) for simultaneous electricity generation and pollutants removal. Using a batch regime feeding COD (240 mg L-1) and ammonia (130 mg L-1), the removal efficiencies of COD, ammonia and total nitrogen (TN) obtained highly at 90%, 98%, and 95%, respectively, and a maximum power output of 1250 +/- 20 mWm(-2) was found. High-throughput sequencing illustrated that the dominant species at the anode was Thauera (75% abundance), indicating its important role in oxidation reactions and electron transfer. At the water-facing side of the air cathode, the predominated bacteria were Thauera (43-74%), Nitrosomonas (3-8%), Desulfomicrobium (1-8%) and Thiobacillus (3-5%), which are involved in nitrification/denitrification process. It can be inferred that complete nitrogen removal may facilitate simultaneous nitrification/denitrification with such inoculum. Furthermore, cyclic voltammetry measurements showed obvious oxidation peaks at -0.40 V and +0.60 V, which indicated that the anode with Thauera-dominated consortium could efficiently catalyze oxidation reactions of organic matter for current generation and nitrogen removal. Therefore, it was demonstrated that to introduce the Thauera-dominated aerobic denitrifying consortium into MFCs is a new and promising approach to enrich EAB for wastewater treatment.
学科主题	Chemical Engineering
URL标识	查看原文
WOS关键词	WASTE-WATER TREATMENT ; SP NOV. ; BACTERIAL COMMUNITIES ; REDUCING BACTERIUM ; TREATMENT-PLANT ; DENITRIFICATION ; PERFORMANCE ; BIOFILM ; GENERATION ; AMMONIUM
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000447004100052
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/30948]
专题	环境治理与食品安全领域_应用与环境微生物研究
作者单位	1.Guangzhou Univ, Inst Environm Res Greater Bay, Minist Educ, Key Lab Water Qual & Conservat Pearl River Delta, Guangzhou 510006, Guangdong, Peoples R China 2.Chinese Acad Sci, Chengdu Inst Biol, Environm Microbiol Key Lab Sichuan Prov, CAS Key Lab Environm & Appl Microbiol, Chengdu 610041, Sichuan, Peoples R China;
推荐引用方式 GB/T 7714	Yang, Nuan,Zhan, Guoqiang,Li, Daping,et al. Complete nitrogen removal and electricity production in Thauera-dominated air-cathode single chambered microbial fuel cell[J]. CHEMICAL ENGINEERING JOURNAL,2019,356:506-515.
APA	Yang, Nuan,Zhan, Guoqiang,Li, Daping,Wang, Xu,He, Xiaohong,&Liu, Hong.(2019).Complete nitrogen removal and electricity production in Thauera-dominated air-cathode single chambered microbial fuel cell.CHEMICAL ENGINEERING JOURNAL,356,506-515.
MLA	Yang, Nuan,et al."Complete nitrogen removal and electricity production in Thauera-dominated air-cathode single chambered microbial fuel cell".CHEMICAL ENGINEERING JOURNAL 356(2019):506-515.