Effects of packing rates of cubic-shaped polyurethane foam carriers on the microbial community and the removal of organics and nitrogen in moving bed biofilm reactors

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	Effects of packing rates of cubic-shaped polyurethane foam carriers on the microbial community and the removal of organics and nitrogen in moving bed biofilm reactors
	Feng Quan 1,2,3; Wang Yuxiao 4; Wang Tianmin 1; Zheng Hao 1; Chu Libing 5; Zhang Chong 1; Chen Hongzhang2 ; Kong Xiuqin 4; Xing Xin-Hui 1
刊名	BIORESOURCE TECHNOLOGY
	2012-08-01
卷号	117 期号:0 页码:201-207
关键词	Moving bed biofilm reactor Microelectrode Packing rate Polyurethane foam Pyrosequencing
ISSN号	0960-8524
通讯作者	Xing, XH
英文摘要	The effects of packing rates (20%, 30%, and 40%) of polyurethane foam (PUF) to the removal of organics and nitrogen were investigated by continuously feeding artificial sewage in three aerobic moving bed biofilm reactors. The results indicated that the packing rate of the PUF carriers had little influence on the COD removal efficiency (81% on average). However, ammonium removal was affected by the packing rates, which was presumably due to the different relative abundances of nitrifying bacteria. A high ammonium removal efficiency of 96.3% at a hydraulic retention time of 5 h was achieved in 40% packing rate reactor, compared with 37.4% in 20% packing rate. Microprofiles of dissolved oxygen and nitrate revealed that dense biofilm limits the DO transfer distance and nitrate diffusion. Pyrosequencing analysis of the biofilm showed that Proteobacteria, Bacteroidetes and Verrucomicrobia were the three most abundant phyla, but the proportions of the microbial community varied with the packing rate of the PUF carriers. (C) 2012 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Technology
类目[WOS]	Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
研究领域[WOS]	Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
关键词[WOS]	WASTE-WATER TREATMENT ; TREATMENT-PLANT ; SUBSTANCES ; BIOREACTOR ; NITRIFICATION ; BIOMASS
收录类别	SCI
语种	英语
WOS记录号	WOS:000306208900028
公开日期	2013-10-16
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/3561]
专题	过程工程研究所_生化工程国家重点实验室
作者单位	1.Tsinghua Univ, Dept Chem Engn, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Natl Key Lab Biochem Engn, Inst Proc Engn, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 4.Lanzhou Univ Technol, Lanzhou 730050, Peoples R China 5.Tsinghua Univ, Lab Environm Technol, INET, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Feng Quan,Wang Yuxiao,Wang Tianmin,et al. Effects of packing rates of cubic-shaped polyurethane foam carriers on the microbial community and the removal of organics and nitrogen in moving bed biofilm reactors[J]. BIORESOURCE TECHNOLOGY,2012,117(0):201-207.
APA	Feng Quan.,Wang Yuxiao.,Wang Tianmin.,Zheng Hao.,Chu Libing.,...&Xing Xin-Hui.(2012).Effects of packing rates of cubic-shaped polyurethane foam carriers on the microbial community and the removal of organics and nitrogen in moving bed biofilm reactors.BIORESOURCE TECHNOLOGY,117(0),201-207.
MLA	Feng Quan,et al."Effects of packing rates of cubic-shaped polyurethane foam carriers on the microbial community and the removal of organics and nitrogen in moving bed biofilm reactors".BIORESOURCE TECHNOLOGY 117.0(2012):201-207.