An Estimate of Activated-Sludge Floc Permeability: A Novel Hydrodynamic Approach

淡江大學機構典藏 > 工學院 > 化學工程與材料工程學系暨研究所 > 期刊論文 > Item 987654321/88186

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题名:	An Estimate of Activated-Sludge Floc Permeability: A Novel Hydrodynamic Approach
作者:	Wu, R. M.;Feng, W. H.;Tsai, I. H.;Lee, D. J.
贡献者:	淡江大學化學工程與材料工程學系
关键词:	ACTIVATED SLUDGE;FLOC PERMEABILITY;FREEZE-THAW TREATMENT;HYDRODYNAMIC DRAG FORCE
日期:	1998-01-01
上传时间:	2013-04-13 15:27:54 (UTC+8)
出版者:	Water Environment Federation
摘要:	This work estimates the interior permeability of waste activated sludge flocs by observing the motion of individual flocs moving vertically toward an impermeable flat plate. Through a comparison of experimental data with theoretical predictions in the literature, floc permeabilities of original sludge and freeze-thaw-conditioned sludges are found to be 0.7 × $10^{-7}$ to 5 × $10^{-7}$ ${\rm m}^{2}$ and 0.9 × $10^{-9}$ to 6 × $10^{-9}$ ${\rm m}^{2}$ , respectively. Moreover, incorporating inertial effect delays the influence of the flat plate, thereby causing the creeping-flow-based correlation to fail.
關聯:	Water Environment Research 70(7), pp.1258-1264
DOI:	10.2175/106143098X123615
显示于类别:	[化學工程與材料工程學系暨研究所] 期刊論文

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