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Suryawirawan E, Janssen AEM, Boom RM, van der Padt A. Bovine Serum Albumin Rejection by an Open Ultrafiltration Membrane: Characterization and Modeling. MEMBRANES 2024; 14:26. [PMID: 38276317 PMCID: PMC11154442 DOI: 10.3390/membranes14010026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/09/2024] [Accepted: 01/15/2024] [Indexed: 01/27/2024]
Abstract
The classic application of ultrafiltration (UF) is for the complete retention of proteins, and in that situation, the transport behavior is well established. More open membranes with fractional retention are used when separating different proteins. However, protein transport has not been well documented yet in the literature. The bovine serum albumin (∼69 kDa) observed rejection ranges from 0.65 to 1 using a 300 kDa molecular weight cut-off membrane at different pH, ionic strength, and pressure. We demonstrated that, especially with open UF, the transport of proteins through the membrane is dominated by advection, with insignificant diffusion effects (p value > 0.05). We showed that with open UF, retention is not only caused by size exclusion but also to a large extent by electrostatic interactions and oligomerization of the proteins. Mass transfer in the polarization layer was relatively independent of the pH and ionic strength. It was underestimated by common Sherwood relations due to a relatively large contribution of the reduction in the flow turbulence near the membrane by the removal of fluid through the membrane. We propose a model that allows relatively quick characterization of the rejection of proteins without prior knowledge of the pore sizes and charges based on just a limited set of experiments. Therefore, protein rejection with the open UF system can be targeted by tuning the processing conditions, which might be useful for designing protein fractionation processes.
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Affiliation(s)
- Eric Suryawirawan
- Food Process Engineering Group, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands; (R.M.B.); (A.v.d.P.)
| | - Anja E. M. Janssen
- Food Process Engineering Group, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands; (R.M.B.); (A.v.d.P.)
| | - Remko M. Boom
- Food Process Engineering Group, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands; (R.M.B.); (A.v.d.P.)
| | - Albert van der Padt
- Food Process Engineering Group, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands; (R.M.B.); (A.v.d.P.)
- FrieslandCampina, P.O. Box 1551, 3800 BN Amersfoort, The Netherlands
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Tan R, Franzreb M. Simulation-based evaluation of single pass continuous diafiltration with alternating permeate flow direction. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Du X, Liu Y, Ma R, Xiao M, Yang W, Han X, Luo Y, Wang Z, Liang H. Gravity-driven ceramic membrane (GDCM) filtration treating manganese-contaminated surface water: Effects of ozone(O 3)-aided pre-coating and membrane pore size. CHEMOSPHERE 2021; 279:130603. [PMID: 34134412 DOI: 10.1016/j.chemosphere.2021.130603] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 04/09/2021] [Accepted: 04/13/2021] [Indexed: 06/12/2023]
Abstract
Achieving adequate manganese removal during water treatment is a challenging process. This study aimed to assess the effectiveness of gravity driven ceramic membrane (GDCM) filtration in the elimination of manganese from surface water. The impact of membrane pre-modification with birnessite and molecular weight cut-off on long-term water treatment efficiency was investigated by assessing filtration units with 300 kDa virgin membrane (300 kDa-blank), 300 kDa membrane pre-coated with manganese oxides (300 kDa-MnOx), and 15 kDa virgin membrane (15 kDa-blank). The results of 300 kDa-blank and 300 kDa-MnOx indicated that depositing manganese oxides (produced via ozone (O3) oxidation) prior to water treatment was conducive to ripening of cake layer which played a major role in Mn removal. Reducing membrane molecular cut-off from 300 to 15 kDa also significantly reduced permeate Mn concentration, achieving a removal efficiency of 75% at the end of the trial (highest of all the units). Relative to 300 kDa-blank, the greater manganese removals in the other two systems can be attributed to 1) the long hydraulic retention times resulting from the higher membrane resistance, and 2) the higher abundance of biologically produced Birnessite materials in the cake layers for manganese oxidation. Raman analysis and X-ray diffraction analysis showed that 15 kDa-blank achieved the highest level of Birnessite production and most cake materials featured a flower-like structure and relatively small size (as shown under a scanning electron microscope and Energy Dispersive X-Ray Spectroscopy element mapping analysis), suggesting a higher surface area for Mn oxidation.
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Affiliation(s)
- Xing Du
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Yao Liu
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Rong Ma
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Mengyao Xiao
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Wupeng Yang
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Xinyi Han
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Yunlong Luo
- Global Centre for Environmental Remediation (GCER), University of Newcastle, Callaghan, NSW, 2308, Australia.
| | - Zhihong Wang
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Heng Liang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin, 150090, PR China.
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