Dialysis in Parallel-Flow Rectangular Membrane Modules with External Reflux for Improved Performance

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题名:	Dialysis in Parallel-Flow Rectangular Membrane Modules with External Reflux for Improved Performance
作者:	Yeh, Ho-Ming;Chen, Tung-Wen;Chen, Kuan-Hung
贡献者:	淡江大學化學工程與材料工程學系
关键词:	dialysis;external recycle;parallel flow
日期:	2010-04-01
上传时间:	2011-10-13 22:29:50 (UTC+8)
出版者:	Korea: Asia Science and Technology Portal
摘要:	The effect of external recycle on the performance of dialysis in countercurrent-flow rectangular membrane modules was investigated both theoretically and experimentally. Theoretical analysis of mass transfer in parallel-flow device with and without recycle is analogous to heat transfer in parallel-flow heat exchangers. Experiments were carried out with the use of a microporous membrane to dialyze urea aqueous solution by pure water. In contrast to a device with recycle, improvement in mass transfer is achievable if parallel-flow dialysis is operated in a device of same size with recycle which provides the increase of fluid velocity, resulting in reduction of mass-transfer resistance, especially for rather low feed volume rate.
關聯:	Membrane Water Treatment 1(2), pp.159-169
DOI:	10.12989/mwt.2010.1.2.159
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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