摘要
对陶瓷膜错流过滤银杏水解液进行了研究 ,考察了膜孔径和操作条件对膜通量的影响 ,确定了合适的过滤操作参数 :膜孔径 0 .2 μm ,错流速度 2 .4cm/s ,操作压力 0 .0 5MPa ,温度 60℃ ;同时 ,也对膜污染机理进行了初步研究 ,发现与由浓差极化引起的可逆阻力相比 ,膜阻力在总阻力中所占比例较小 .
Cross flow microfiltration of Ginkgo (Ginkgo biloba L) hydrolysates was studied using ceramic membrane. The effects of membrane pore size and operation conditions on permeation flux were investigated and the appropriate operating conditions for the process obtained were 0.2 μm,0.05 MPa,2.4 cm/s,60 ℃ for membrane pore size, transmembrane press, cross flow velocity and temperature, respectively. Fouling mechanism of ceramic microfiltration membrane was also analysed with hydraulic resistance model, the results showed the proportion of the intrinsic resistance of the membrane (R m) in the total resistance was less than that of the resistance due to concentration polarization (R p).
出处
《无锡轻工大学学报（食品与生物技术）》
CSCD
2000年第6期570-573,590,共5页
Journal of Wuxi University of Light Industry
关键词
错流过滤
银杏水解液
膜污染机理
陶瓷膜
果汁
cross flow microfiltration
ginkgo (Ginkgo biloba L) hydrolysates
fouling mechanism
ceramic membraT
