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Study on anaerobic ammonium oxidation process coupled with denitrification microbial fuel cells (MFCs) and its microbial community analysis.
Bioresour Technol. 2015 Jan; 175:545-52.BT

Abstract

Denitrifying MFC was successfully coupled with anaerobic ammonium oxidation process in this study. With the help of cathode electrons, the stoichiometry relationship Δ(-)NH3-N:Δ(-)NO2(-)-N:Δ(+)NO3(-)-N was approximate 1:1.37:0.03 during the stable operation, which demonstrated its further nitrite and nitrate reduction. According to microbial community analysis, Candidatus Brocadia sinica was the main anammox community, and Rhodopseudomonas palustris with electrochemical driven denitrifying ability, especially enriched in biofilm. Higher abundance of nirK genes in biofilm (compare to the control) and invariable amx genes in suspended sludge were responsible for its better nitrogen removal. The sludge and biofilm performed their own duties on anammox and denitrification, respectively, according to genes quantification. Under the totally autotrophic system, electron donors were "concentrated supplied" and easy to control, which avoided the suppression of anammox growth, making this autotrophic coupling process appears to be more promising.

Authors+Show Affiliations

Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China; State Key Engineering Research Center of Efficient Utilization of Water Resources and Engineering Safety, Hohai University, Nanjing 210098, China. Electronic address: lichao0609@163.com.College of Environment, Nanjing University, Nanjing 210098, China.College of Environment, Hohai University, Nanjing 210098, China.Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China; State Key Engineering Research Center of Efficient Utilization of Water Resources and Engineering Safety, Hohai University, Nanjing 210098, China. Electronic address: caojiashun@hhu.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

25459866

Citation

Li, Chao, et al. "Study On Anaerobic Ammonium Oxidation Process Coupled With Denitrification Microbial Fuel Cells (MFCs) and Its Microbial Community Analysis." Bioresource Technology, vol. 175, 2015, pp. 545-52.
Li C, Ren H, Xu M, et al. Study on anaerobic ammonium oxidation process coupled with denitrification microbial fuel cells (MFCs) and its microbial community analysis. Bioresour Technol. 2015;175:545-52.
Li, C., Ren, H., Xu, M., & Cao, J. (2015). Study on anaerobic ammonium oxidation process coupled with denitrification microbial fuel cells (MFCs) and its microbial community analysis. Bioresource Technology, 175, 545-52. https://doi.org/10.1016/j.biortech.2014.10.156
Li C, et al. Study On Anaerobic Ammonium Oxidation Process Coupled With Denitrification Microbial Fuel Cells (MFCs) and Its Microbial Community Analysis. Bioresour Technol. 2015;175:545-52. PubMed PMID: 25459866.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Study on anaerobic ammonium oxidation process coupled with denitrification microbial fuel cells (MFCs) and its microbial community analysis. AU - Li,Chao, AU - Ren,Hongqiang, AU - Xu,Ming, AU - Cao,Jiashun, Y1 - 2014/11/04/ PY - 2014/08/19/received PY - 2014/10/25/revised PY - 2014/10/29/accepted PY - 2014/12/3/entrez PY - 2014/12/3/pubmed PY - 2017/1/31/medline KW - Anammox KW - Autotrophic denitrification KW - Biofilm KW - Microbial community SP - 545 EP - 52 JF - Bioresource technology JO - Bioresour Technol VL - 175 N2 - Denitrifying MFC was successfully coupled with anaerobic ammonium oxidation process in this study. With the help of cathode electrons, the stoichiometry relationship Δ(-)NH3-N:Δ(-)NO2(-)-N:Δ(+)NO3(-)-N was approximate 1:1.37:0.03 during the stable operation, which demonstrated its further nitrite and nitrate reduction. According to microbial community analysis, Candidatus Brocadia sinica was the main anammox community, and Rhodopseudomonas palustris with electrochemical driven denitrifying ability, especially enriched in biofilm. Higher abundance of nirK genes in biofilm (compare to the control) and invariable amx genes in suspended sludge were responsible for its better nitrogen removal. The sludge and biofilm performed their own duties on anammox and denitrification, respectively, according to genes quantification. Under the totally autotrophic system, electron donors were "concentrated supplied" and easy to control, which avoided the suppression of anammox growth, making this autotrophic coupling process appears to be more promising. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/25459866/Study_on_anaerobic_ammonium_oxidation_process_coupled_with_denitrification_microbial_fuel_cells__MFCs__and_its_microbial_community_analysis_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(14)01588-0 DB - PRIME DP - Unbound Medicine ER -