教師資料查詢 | 類別: 期刊論文 | 教師: 吳容銘 Wu Jung-ming (瀏覽個人網頁)

標題:Estimation of Floc Permeability
學年
學期
出版(發表)日期2002/06/01
作品名稱Estimation of Floc Permeability
作品名稱(其他語言)
著者Wu, R. M.; Lee, D. J.; He, Pinjing
單位淡江大學化學工程與材料工程學系
出版者I W A Publishing
著錄名稱、卷期、頁數Water Intelligence Online, 1, UNIQUE ID: 200206015
摘要This paper briefly reviewed the progress made recently to the estimation of hydrodynamic permeability of sludge flocs, which is essential for determining the extent of advection flow through the floc interior. The large pores mainly contribute the hydrodynamic permeability of sludge floc though which the fluid could readily flow. Permeability models that assume a homogeneous floc interior normally yield marked uncertainties in model outputs. Wu et al. (1998) proposed a hydrodynamic approach for estimating the hydrodynamic permeability that considers the response of the sludge floc when moves toward a flat plate. The floc permeability for waste activated sludge was noted higher than the cupric hydroxide sludge, while the polyelectrolyte flocculation and fluid shear could reduce the permeability. The bubble-tracking technique describes the fluid flow field around and the through the floc interior. The existence of advection flow is noted unexceptional. The misuse of permeability model has been demonstrated with a case study leading to the floc porosity based on free-settling test.
關鍵字
語言英文
ISSN1476-1777
期刊性質國外
收錄於
產學合作
通訊作者
審稿制度
國別英國
公開徵稿
出版型式電子版
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