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论文类型： 期刊论文

发表时间： 2015-11-05

发表刊物： SEPARATION AND PURIFICATION TECHNOLOGY

收录刊物： SCIE、EI、Scopus

卷号： 154

页面范围： 36-43

ISSN号： 1383-5866

关键字： Folded plate membrane module; Membrane fouling; Flux enhancement; Hydrodynamic characteristics; Operating condition

摘要： To intensify the air scouring efficiency and reduce the membrane fouling, a new folded plate membrane module (FPMM) was designed by modifying the configuration of conventional flat sheet membrane module (FSMM). The hydrodynamic characteristics near the folded plate membrane surface, and its filtration performance in different operating conditions were studied. The particle image velocimetry (PIV) measurement results showed that, the higher flow velocity, the stronger turbulence, and more vortices existed near the folded plate membrane surface. The stable flux of the FPMMs had an increase of 17.8-57.7% over that of the FSMM, and the optimal vertical inclination angle was 15 degrees. Moreover, in the filtration process, the flux enhancement of the FPMM was affected by the aeration intensity, yeast suspension concentration and trans-membrane pressure (TMP). (C) 2015 Elsevier B.V. All rights reserved.