NDLI: Process Performance and Bacterial Community Structure Under Increasing Influent Disturbances in a Membrane-Aerated Biofilm Reactor.

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Process Performance and Bacterial Community Structure Under Increasing Influent Disturbances in a Membrane-Aerated Biofilm Reactor.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Tian, Hailong Yan, Yingchun Chen, Yuewen Wu, Xiaolei Li, Baoan
Description	Author Affiliation: Tian H ( Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P.R. China.); Yan Y ( State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, P.R. China.); Chen Y ( Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, P.R. China.); Wu X ( Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, P.R. China.); Li B ( Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610000, P.R. China.)
Abstract	The membrane-aerated biofilm reactor (MABR) is a promising municipal wastewater treatment process. In this study, two cross-flow MABRs were constructed to explore the carbon and nitrogen removal performance and bacterial succession, along with changes of influent loading shock comprising flow velocity, COD, and NH4-N concentrations. Redundancy analysis revealed that the function of high flow velocity was mainly embodied in facilitating contaminants diffusion and biosorption rather than the success of overall bacterial populations (p > 0.05). In contrast, the influent NH4-N concentration contributed most to the variance of reactor efficiency and community structure (p < 0.05). Pyrosequencing results showed that Anaerolineae, and Beta- and Alphaproteobacteria were the dominant groups in biofilms for COD and NH4-N removal. Among the identified genera, Nitrosomonas and Nitrospira were the main nitrifiers, and Hyphomicrobium, Hydrogenophaga, and Rhodobacter were the key denitrifiers. Meanwhile, principal component analysis indicated that bacterial shift in MABR was probably the combination of stochastic and deterministic processes.
File Format	HTM / HTML
ISSN	10177825
e-ISSN	17388872
Journal	Journal of Microbiology and Biotechnology
Issue Number	2
Volume Number	26
Language	English
Publisher	Korean Society for Microbiology and Biotechnology
Publisher Date	2016-02-01
Publisher Place	Korea (South)
Access Restriction	Open
Subject Keyword	Discipline Microbiology Discipline Biotechnology Bacteria Metabolism Biofilms Bioreactors Microbial Consortia Physiology Waste Disposal, Fluid Alphaproteobacteria Genetics Isolation & Purification Classification Biological Oxygen Demand Analysis Nitrogen Nitrosomonas Oxygen Principal Component Analysis Waste Water Chemistry Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Medicine Applied Microbiology and Biotechnology Biotechnology

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