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	Disruption of granules by hydrodynamic force in internal circulation anaerobic reactor
	Wu, J. ; Lu, Z. Y. ; Hu, J. C. ; Feng, L. ; Huang, J. D. ; Gu, X. S.
	2010-05-10 ; 2010-05-10
会议名称	WATER SCIENCE AND TECHNOLOGY ; 5th World Water Congress of the International-Water-Association ; Beijing, PEOPLES R CHINA ; Web of Science
关键词	attrition force average shear rate granule hydrodynamic force increase rate of average shear rate shear force Engineering, Environmental Environmental Sciences Water Resources
中文摘要	A process of granule disruption by hydrodynamic force is discussed in this paper. Shear force and attrition among granules originated from hydrodynamic force are the main causes of the disruption. Since it is positively correlated to the attrition force, the shear force is utilized to describe the effect of hydrodynamic force on granule disruption. In the experiment, when increase rate of average shear rate (IR gamma) of the 1(st) stage is about 0.2 s(-1.)d(-1), the granules are disrupted; while re-granulation could develop when IR gamma is about 0.07 s(-1.)d(-1); even when the shear rate is as high as about 30s(-1), the granulation rate keeps stably at a relatively high level, which shows that granules could bear the high hydrodynamic force only if it increases by low increase rate. The experimental results would be valuable for the operation and controlling of the upflow reactors.
会议录出版者	I W A PUBLISHING ; LONDON ; ALLIANCE HOUSE, 12 CAXTON ST, LONDON SW1H0QS, ENGLAND
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/18909]
专题	清华大学
推荐引用方式 GB/T 7714	Wu, J.,Lu, Z. Y.,Hu, J. C.,et al. Disruption of granules by hydrodynamic force in internal circulation anaerobic reactor[C]. 见:WATER SCIENCE AND TECHNOLOGY, 5th World Water Congress of the International-Water-Association, Beijing, PEOPLES R CHINA, Web of Science.

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