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Filtration of Gulonic Acid Fermentation Liquor by Ceramic Membrane
Author(s): 
Pages: 30-34
Year: Issue:  1
Journal: JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY OF SUZHOU(NATURAL SCIENCE EDITION)

Keyword:  陶瓷膜浓缩的古龙酸发酵液膜污染;
Abstract: 研究了利用陶瓷膜过滤古龙酸发酵液,该发酵液是指有机膜过滤古龙酸发酵液至一定浓缩倍数时的料液.其内容包括利用陶瓷膜分离技术从浓缩的古龙酸发酵液中直接分离出古龙酸钠的可行性及其最适宜的工艺,并对分离过程中存在的膜污染与膜清洗作了研究.结果表明,采用孔径为50 nm的陶瓷膜,浓缩的古龙酸发酵液中古龙酸钠含量为9%左右,过膜压差为0.35 MPa,膜面流速为4.5 m·s-1,操作温度为35℃,浓缩倍数为3倍,膜过滤通量维持在35~50L·(m2·h)-1,在此条件下,陶瓷膜的透析液质量优良,单批产品收率达到99%以上.
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