出版日期：2004-10-01 00:00:00

著者：Cheng, Tung-Wen; Lin, Chih-Ta

單位：淡江大學化學工程與材料工程學系

出版者：Kidlington: Pergamon

著錄名稱、卷期、頁數：Separation and Purification Technology 39(1-2 SPEC. ISS.), pp.13-22

摘要：In this study, the flux behavior of an-inclined flat-membrane cross-flow ultrafiltration was investigated. The experiment was conducted using a cellulose ester membrane (10,000 MWCO) and dextran T500 as the test solution. The membrane inclination included 0° (flow above membrane), 90° (vertical membrane), and 180° (flow below membrane). Experimental results showed that raising the cross-flow velocity increased the permeate flux and the time required to reach a steady state was also shortened. The effect of inclination on the flux enhancement is significant when the conventional ultrafiltration is operated at a low liquid flow rate. In two-phase flow ultrafiltration, the introduction of gas enhances the permeate flux even at a high liquid flow rate and the influence of gas sparging is particularly prominent as the membrane is installed at 180° orientation. Under the present operating conditions, the filtration flux is maximum at 180° and minimum at 0° inclination.

關鍵字：Cellulose;Esters;Flow of fluids;Membranes;Purification;Ultrafiltration;Cellulose ester membranes;Cross-flow velocity;Flow rates;Separation;crossflow;membrane;separation;ultrafiltration

語言：en

ISSN：1383-5866

期刊性質：國外

收錄於：SCI EI

通訊作者：Cheng, Tung-Wen

國別：GBR

出版型式：紙本