Crossflow microfiltration of mono-dispersed deformable particle suspension |
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| Institution: | 1. Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan, ROC;2. Department of Chemical Engineering, Tamkang University, Tamsui, Taipei Hsien 251, Taiwan, ROC;1. A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29, Leninsky Prospect, 119991 Moscow, Russia;2. N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky Prospect, 119991 Moscow, Russia;3. N.N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4, Ulitsa Kosygina, 119991 Moscow, Russia;1. Bindley Bioscience and Birck Nanotechnology Center, Department of Agricultural & Biological Engineering, Purdue University, West Lafayette, IN 47907, USA;2. BioMérieux Innovation Unit, Chemin de l''Orme, Marcy l''Etoile 69280, France;3. Department of Biomedical Laboratory Science, College of Health Science, Eulji University, Seongnam 461-713, Republic of Korea;1. Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan;2. Department of Light Chemistry Industry, School of Environmental and Natural Resources, Zhejiang University of Science and Technology, Hangzhou, Zhejiang Province 310023, PR China;3. Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan;4. Department of Pulp and Paper Technology, Institute of Technology and Science Bandung, Jl. Ganesha Boulevard Lot-A1 Kota Deltamas, Cikarang Pusat, Bekasi, Jawa Barat 17530, Indonesia;1. College of Food Science and Technology, Henan Agricultural University, No.63 Wenhua Rd, Zhengzhou 450002, PR China;2. College of Veterinary Medicine, Henan Agricultural University, No.63 Wenhua Rd, Zhengzhou 450002, PR China;3. Postdoctoral Workstation of Hengdu Food Co., LTD, Zhumadian 463700, PR China |
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| Abstract: | Crossflow microfiltration of mono-dispersed deformable particles of Saccharomyces cerevisiae and Ca-alginate, and rigid PMMA particles was conducted to compare the structure of the flux-limiting layer. The effects of particle deformation due to the frictional drag and mass of the cake, and the area contact among particles on the reduction of porosity were examined to determine how these variations lead to an increase in filtration resistance. The dynamic analysis proposed by Lu and Hwang (AIChE J. 41 (1995) 1443–1455) was modified to examine cake formation during crossflow filtration of deformable particles by taking the transient effect of cake compression and the effect of the area contact between particles into consideration. In situ measurement of filter cake thickness using the infrared reflection method was applied to verify the theoretical results. Both experimental and simulated results showed that the cake formed by deformable particles exhibits a rapid increase in flow resistance or a decrease in local porosity and a high resistant limiting layer is formed next to the filter medium during filtration due to the deformation of particles. |
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