https://scholars.lib.ntu.edu.tw/handle/123456789/407650
標題: | Cyclic Filtration-Cleaning of Chlorella vulgaris Using Surface-Modified Hydrophilic Polytetrafluoroethylene Membrane with Polyaluminum Chloride as Coagulant | 作者: | Lee D.-J. Chen G.-Y. Chang Y.-R. Mujumdar A.S. Chang J.-S. |
關鍵字: | Algae;Cyclic operations;Harvesting;Membrane filtration | 公開日期: | 2013 | 卷: | 31 | 期: | 2 | 起(迄)頁: | 207-212 | 來源出版物: | Drying Technology | 摘要: | Membrane filtration can efficiently harvest microalgae from culture broth. The performances of cyclic filtration and cleaning tests on Chlorella vulgaris were evaluated with polyaluminum chloride (PACl) coagulation and with a surface-modified hydrophilic polytetrafluoroethylene (PTFE) membrane under 1 bar pressure drop. Filtration of the original algal suspension without PACl coagulation could lead to severe irreversible fouling on the PTFE membrane. Coagulation using 10 mgl-1 PACl can mitigate pore blocking but cannot enhance filtration flux. With 500 mgl-1 PACl, most fines were incorporated into large flocs to build up cakes of low resistance and protect membrane pores from severe blocking. Flux recovery all exceeded 95% with ?10 mgl-1 PACl dosage. The PACl-coagulation and surface modified PFTE membrane are feasible to dehydrate Chlorella vulgaris ESP-6 isolate using cyclic filtration-cleaning process.Supplemental materials are available for this article. Go to the publisher's online edition of Drying Technology to view the free supplemental file. ? 2013 Copyright Taylor and Francis Group, LLC. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/407650 | ISSN: | 07373937 | DOI: | 10.1080/07373937.2012.700358 |
顯示於: | 化學工程學系 |
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