Research of carbon and nitrogen ratio and sludge stability in aerobic granular sludge bioreactor

doi:10.4028/www.scientific.net/AMR.518-523.473

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Research of carbon and nitrogen ratio and sludge stability in aerobic granular sludge bioreactor
	Zhao, Xia; Feng, Hui-Xia; Jiang, Feng; Chen, Na-Li; Wang, Xiao-Chun
	2012
会议日期	June 23, 2012 - June 24, 2012
会议地点	Hohhot, China
关键词	Ammonia Bacteria Denitrification Granulation Nitrification Phosphorus Aerobic granular Aerobic granular sludges Ammonia nitrogen Ammonia nitrogen removal C/N ratio Carbon and nitrogen COD removal Denitrifying bacteria Filamentous microbes Granular sludge MLSS and SVI Nitrifying bacteria Organic removal Organics Phosphorus removal Sequencing batch reactors Simultaneous nitrification and denitrification
卷号	518-523
DOI	10.4028/www.scientific.net/AMR.518-523.473
页码	473-477
英文摘要	In sequencing batch reactor aerobic granular sludge was cultivated, and the influence of influent C/N ratio to aerobic granular sludge was studied. The results showed that the granulation and the settling ability of the sludge were poor in high C/N, however, low C/N was beneficial to the accumulation of microorganism in reactor and MLSS could reach to as high as 8740 mg/L. Lower C/N ratio would lead to increase of particle size and disintegrate of loose structure and overgrowth on filamentous microbe, these were disadvantage of the stability of the system. It was not obvious that influent C/N ratio affected on the organic removal. The COD removal maintained at 87% after the preliminary form particles were formed in reactor. When C/N ratio was 100:15∼100:35, the phosphorus removal efficiency was good. If C/N ratio was too high or too low, the formation of sludge granulation would be affected in the process. The influence of C/N ratio to ammonia nitrogen removal efficiency was obvious. While C/N ratio was 100:10, granular sludge had good simultaneous nitrification and denitrification performance, and the average removal of ammonia nitrogen attained to 91%. But low C/N ratio was able to inhibit the activity of nitrifying bacteria and denitrifying bacteria. At that time, ammonia nitrogen removal rate declined sharply in the system. © (2012) Trans Tech Publications, Switzerland.
会议录	Advanced Materials Research
会议录出版者	Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany
语种	英语
ISSN号	10226680
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/116041]
专题	石油化工学院教务处（创新创业学院）
作者单位	College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China
推荐引用方式 GB/T 7714	Zhao, Xia,Feng, Hui-Xia,Jiang, Feng,et al. Research of carbon and nitrogen ratio and sludge stability in aerobic granular sludge bioreactor[C]. 见:. Hohhot, China. June 23, 2012 - June 24, 2012.