膜科学与技术

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Preliminary Study on Iota carrageenan by Ceramic Membrane

Authors： DENG Yanghua 1,2, ZHANG Kaisong1

Units： 1．Institute of Urban Environment，Chinese Academy of Sciences, Xiamen 361021， 2. University of Chinese Academy of Sciences, Beijing 100049

KeyWords： Iota carrageenan ; Ceramic membrane; Concentration

ClassificationCode：TS 202.3 ；TQ028.8

year,volume(issue):pagination： 2015,35(1):91-96

Abstract：

In this work, the different operation parameters were compared in terms of water flux，concentration
times and membrane total resistance . The concentration of iota carrageenan solutions were carried out in a tube Al2O3 /ZrO2 ceramic membrane. Although a similar overall driving force and other parameters was used, the attenuation of membrane flux obtained using the high concentration 2% was less than half of that observed using the less concentration 0.25 %, due to gel layer effects. A faster results can observed on proper trans-membrane pressure, cross flow velocity. From these studies, it could be concluded
that, the 3.6 m/s and 0.2MPa has advantages over other parameters , not only in terms of water flux, but also concentration times and membrane total resistance. Finally, the concentration of different operation temperature was carried out. Due to the presence of low dynamic viscosity in high temperature, a
lower mass transfer resistance was observed at 70℃. The results show the good potential of the ceramic membrane for concentration of iota carrageenan.

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AuthorIntro：

邓杨桦（1986年-），男，四川乐山人，硕士研究生，主要研究领域：膜制备与应用

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