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    题名: Ultrafiltration in a Concentric-Tube Membrane Module Inserted with a Helical Wire for Improved Performance
    作者: Yeh, H. M.;Chen, K. T.;Liu, T. C.
    贡献者: 淡江大學化學工程學系
    关键词: 超過濾;管狀薄膜;線棒;阻力串聯模式;Ultrafiltration;Tubular Membrane;Wire Rod;Resistance-In-Series Model
    日期: 2001-12
    上传时间: 2014-02-09 00:51:49 (UTC+8)
    摘要: A hydrodynamic approach developed by a wired-membrane module forreducing the effects of concentration polarization and progressivefouling in membrane ultrafiltration, has been carried out. Thewired- membrane module is modified from a tubular-membrane module byinserting concentrically a steel rod wrapped entirely with a tightfitting wire spiral, having a diameter nearly equal to the annularspacing , as a spacer. Experiments for ultrafiltration of dextran T500aqueous solution in a wired-membrane module was carried out forvarious transmembrane pressures, feed concentrations, feed flow rates,and inclined angles of helical wire. Theoretical predictions werebased on the resistance-in-series model and confirmed qualitativelywith the experimental results. Considerable improvement of performanceis obtainable by employing a wired-membrane module rather than using atubular membrane module without or even with a steel rod insertedconcentrically.
    關聯: 第二十三屆輸送現象及其應用研討會暨膜分離論壇第四屆台灣-新加坡環境保護技術研討會論文集=Proceedings of The 23st Symposium of Transport Phenomena and 1ts Applications/Membrance Seperation Forum/The 4st Taiwan-Singapore Jiont Symposium on Environmental Technology
    显示于类别:[化學工程與材料工程學系暨研究所] 會議論文

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