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Theoretical study on membrane extraction of Cu2+ with D2EHPA in laminar flow circular tube modules

類別:期刊論文

學年 / 學期:97-1

出版日期:2008-12-15 00:00:00

著者:Guo, Jia-Jan; Ho, Chii-Dong

單位:淡江大學化學工程與材料工程學系

出版者:Amsterdam: Elsevier BV

著錄名稱、卷期、頁數:Desalination 233(1-3), pp.247-257

摘要:The predicting equations for the mass-transfer rate and mass-transfer efficiency in a concentric circular membrane extractor module under concurrent- and countercurrent-flow with various barrier locations were derived theoretically by calculating the mass balance on each subchannel. The analytical solution was obtained by using the separation variable and eigen-function expansion in power series. The mass-transfer efficiency enhancement in this study is represented graphically with the volumetric flow rate and permeable-barrier location as parameters. The theoretical predictions show that the improvements in the extraction rate, extraction efficiency, and mass-transfer efficiency can be achieved by setting the barrier location moving away from the κ = 0.5. The influences of the barrier location, aqueous phase flow rate, and the concentrations of Cu2+ on the mass-transfer efficiency enhancement are also discussed.

關鍵字:Mass-transfer efficiency;Membrane extraction;Orthogonal expansion;Extraction rate

語言:en

ISSN:0011-9164 1873-4464

期刊性質:國外

收錄於:SCI EI

通訊作者:Ho, Chii-Dong

審稿制度:

國別:NLD

出版型式:電子版,紙本