教師資料查詢 | 類別: 期刊論文 | 教師: 黃國楨 Hwang, Kuo-Jen (瀏覽個人網頁)

標題:Effect of Polysaccharide Concentration on the Membrane Filtration of Microbial Cells
學年100
學期1
出版(發表)日期2012/01/01
作品名稱Effect of Polysaccharide Concentration on the Membrane Filtration of Microbial Cells
作品名稱(其他語言)
著者Hwang, Kuo-Jen; Tsai, Pei-Chun; Eiji Iritani; Nobuyuki Katagiri
單位淡江大學化學工程與材料工程學系
出版者Rochester: Rochester Institute of Technology * College of Applied Science and Technology
著錄名稱、卷期、頁數Journal of Applied Science and Engineering 15(4), pp.323-332
摘要Polysaccharides are frequently produced by microbial metabolism or lysis in fermentation broths or bioreactors. This substance often causes membrane filtration difficulty. The polysaccharide concentration effects on the microfiltration characteristics of microbial cells are discussed in this study. Yeast and dextran are used as typical microbial cell and polysaccharide samples. The results show that polysaccharides play important roles in filtration performance. The filter cake exhibits a more compact structure and much higher filtration resistance when more dextran molecules pack into the yeast cake structure. Some dextran molecules also adsorb onto the walls in membrane pores, reducing the pore size, resulting in membrane fouling. The filtration resistances due to filter cake and membrane internal fouling are analyzed using filtrate volume versus time experimental data. These resistances increase significantly with the filtration pressure and dextran concentration. The cake properties in constant pressure microfiltration of yeast-dextran mixtures with different compositions are also analyzed. An increase in dextran concentration leads to lower cake growth rate, lower cake porosity and much higher average specific cake filtration resistance.
關鍵字Microfiltration;Membrane Filtration;Bio-Separation;Cake Properties
語言英文(美國)
ISSN1939-8565
期刊性質國外
收錄於EI;
產學合作
通訊作者Hwang, Kuo-Jen
審稿制度
國別美國
公開徵稿
出版型式,紙本
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