气候变化领域集成服务门户(CCPortal): 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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DOI	10.1016/j.biortech.2012.04.076
	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; Wang Yuxiao; Wang Tianmin; Zheng Hao; Chu Libing; Zhang Chong; Chen Hongzhang; Kong Xiuqin; Xing Xin-Hui
发表日期	2012
ISSN	0960-8524
起始页码	201
结束页码	207
卷号	117
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.
英文关键词	Moving bed biofilm reactor; Microelectrode; Packing rate; Polyurethane foam; Pyrosequencing
WOS研究方向	Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS类目	Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS关键词	WASTE-WATER TREATMENT ; TREATMENT-PLANT ; SUBSTANCES ; BIOREACTOR ; NITRIFICATION ; BIOMASS
WOS记录号	WOS:000306208900028
来源期刊	BIORESOURCE TECHNOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239383
作者单位	[Feng Quan; Wang Tianmin; Zheng Hao; Zhang Chong; Xing Xin-Hui] Tsinghua Univ, Dept Chem Engn, Beijing 100084, Peoples R China; [Feng Quan; Chen Hongzhang] Chinese Acad Sci, Natl Key Lab Biochem Engn, Inst Proc Engn, Beijing 100190, Peoples R China; [Feng Quan] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China; [Wang Yuxiao; Kong Xiuqin] Lanzhou Univ Technol, Lanzhou 730050, Peoples R China; [Chu Libing] 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]. 中国科学院西北生态环境资源研究院,2012,117.
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.
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(2012).