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Young AH, Hotz N, Hawkins BT, Kabala ZJ. Inducing Deep Sweeps and Vortex Ejections on Patterned Membrane Surfaces to Mitigate Surface Fouling. MEMBRANES 2024; 14:21. [PMID: 38248711 PMCID: PMC10818955 DOI: 10.3390/membranes14010021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 01/23/2024]
Abstract
Patterned membrane surfaces offer a hydrodynamic approach to mitigating concentration polarization and subsequent surface fouling. However, when subjected to steady crossflow conditions, surface patterns promote particle accumulation in the recirculation zones of cavity-like spaces. In order to resolve this issue, we numerically subject a two-dimensional, patterned membrane surface to a rapidly pulsed crossflow. When combined with cavity-like spaces, such as the valleys of membrane surface patterns, a rapidly pulsed flow generates mixing mechanisms (i.e., the deep sweep and the vortex ejection) and disrupts recirculation zones. In only four pulses, we demonstrate the ability of these mechanisms to remove over half of the particles trapped in recirculation zones via massless particle tracking studies (i.e., numerical integration of the simulated velocity field). The results of this work suggest that when combined with a rapidly pulsed inlet flow, patterned membrane surfaces can not only alleviate concentration polarization and the surface fouling that follows but also reduce the need for traditional cleaning methods that require operational downtime and often involve the use of abrasive chemical agents.
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Affiliation(s)
- August H. Young
- Duke Center for WaSH-AID, Durham, NC 27701, USA;
- Mechanical Engineering and Materials Science, Duke University, Durham, NC 27710, USA;
| | - Nico Hotz
- Mechanical Engineering and Materials Science, Duke University, Durham, NC 27710, USA;
| | - Brian T. Hawkins
- Duke Center for WaSH-AID, Durham, NC 27701, USA;
- Electrical and Computer Engineering, Duke University, Durham, NC 27710, USA
| | - Zbigniew J. Kabala
- Civil and Environmental Engineering, Duke University, Durham, NC 27710, USA;
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2
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Park JE, Kang TG, Moon H. The Effect of the Rotating Disk Geometry on the Flow and Flux Enhancement in a Dynamic Filtration System. MEMBRANES 2023; 13:291. [PMID: 36984677 PMCID: PMC10056996 DOI: 10.3390/membranes13030291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/24/2023] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
A numerical study was conducted to investigate the effect of rotating patterned disks on the flow and permeate flux in a dynamic filtration (DF) system. The DF system consists of a rotating patterned disk and a stationary housing with a circular flat membrane. The feed flow is driven by the rotating disk with the angular velocity ranging from 200 to 1000 rpm and the applied pressure difference between inlet and outlet ports. Wheel-shaped patterns are engraved on the disk surfaces to add perturbation to the flow field and improve the permeate flux in the filtration system. Five disks with varying numbers of patterns were used in numerical simulations to examine the effects of the number of patterns and the angular velocity of the disk on the flow and permeate flux in the DF system. The flow characteristics are studied using the velocity profiles, the cross-sectional velocity vectors, the vortex structures, and the shear stress distribution. The wheel-shaped patterns shift the central core layer in the circumferential velocity profile towards the membrane, leading to higher shear stresses at the membrane and higher flux compared to a plain disk. When the number of patterns on the disk exceeded eight at a fixed Reynolds number, there were significant increases in wall shear stress and permeate flux compared to a plain disk filtration system with no pattern.
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Affiliation(s)
- Jo Eun Park
- School of Aerospace and Mechanical Engineering, Korea Aerospace University, 76 Hanggongdaehak-ro, Deogyang-gu, Goyang-si 10540, Gyeonggi-do, Republic of Korea
| | - Tae Gon Kang
- School of Aerospace and Mechanical Engineering, Korea Aerospace University, 76 Hanggongdaehak-ro, Deogyang-gu, Goyang-si 10540, Gyeonggi-do, Republic of Korea
- Department of Smart Air Mobility, Korea Aerospace University, 76 Hanggongdaehak-ro, Deogyang-gu, Goyang-si 10540, Gyeongi-do, Republic of Korea
| | - Heejang Moon
- School of Aerospace and Mechanical Engineering, Korea Aerospace University, 76 Hanggongdaehak-ro, Deogyang-gu, Goyang-si 10540, Gyeonggi-do, Republic of Korea
- Department of Smart Air Mobility, Korea Aerospace University, 76 Hanggongdaehak-ro, Deogyang-gu, Goyang-si 10540, Gyeongi-do, Republic of Korea
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3
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Abdel-Aty AA, Ahmed RM, ElSherbiny IM, Panglisch S, Ulbricht M, Khalil AS. Superior Separation of Industrial Oil-in-Water Emulsions Utilizing Surface Patterned Isotropic PES Membranes. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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4
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Yang M, Wang J, Zhang M, Liu K, Huang H. Particle oscillation at corrugated membrane-water interface: An in-situ direct observation and implication to membrane fouling control. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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5
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Separation of oil-water emulsion by disc ceramic membrane under dynamic membrane filtration mode. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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6
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Hui Y, Feng X, Wang H, Mao ZS, Yang C. Effects on the Performance of Filtration in a Constant-Pressure Stirred Membrane Reactor. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuanyuan Hui
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin Feng
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haoliang Wang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zai-Sha Mao
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Chao Yang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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Kim DY, Jung SY, Lee YJ, Ahn KH. Effect of Colloidal Interactions and Hydrodynamic Stress on Particle Deposition in a Single Micropore. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:6013-6022. [PMID: 35507428 DOI: 10.1021/acs.langmuir.2c00237] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Clogging is ubiquitous. It happens in a wide range of material processing and causes severe performance degradation or process breakdown. In this study, we investigate clogging dynamics in a single micropore by controlling the surface property of the particle and processing condition. Microfluidic observation is conducted to investigate particle deposition in a contraction microchannel where polystyrene suspension is injected as a feed solution. The particle deposition area is quantified using the images taken using a CCD camera in both upstream and downstream of the microchannel. Pressure drop across the microchannel is also measured. When the particle interaction is repulsive, the deposition occurs mostly in downstream, while an opposite tendency is identified when the particle interaction is attractive. More complex deposition characteristics are found as the flow rate is changed. Particle flux density and the ratio of lift force to colloidal force are introduced to explain the clogging dynamics. This study provides a useful insight to alleviate clogging issues by controlling the colloidal interaction and hydrodynamic stress.
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Affiliation(s)
- Dae Yeon Kim
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Korea
| | - Seon Yeop Jung
- Department of Chemical Engineering, Dankook University, Yongin-si, Gyeonggi-do 16890, Korea
| | - Young Jin Lee
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Korea
| | - Kyung Hyun Ahn
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Korea
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8
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Shang W, Yang S, Liu W, Wong PW, Wang R, Li X, Sheng G, Lau W, An AK, Sun F. Understanding the influence of hydraulic conditions on colloidal fouling development by using the micro-patterned nanofiltration membrane: Experiments and numerical simulation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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Effect of surface-patterned topographies of ceramic membranes on the filtration of activated sludge and their interaction with different particle sizes. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.120125] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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Tian J, Teng Y, Gao S, Zhang R. A Metal-organic composite ultrafiltration membrane synthesized via Quadratic phase inversion. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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11
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Interplay between particulate fouling and its flow disturbance: Numerical and experimental studies. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Kim KT, Park JE, Jung SY, Kang TG. Fouling Mitigation via Chaotic Advection in a Flat Membrane Module with a Patterned Surface. MEMBRANES 2021; 11:membranes11100724. [PMID: 34677490 PMCID: PMC8539713 DOI: 10.3390/membranes11100724] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/17/2021] [Accepted: 09/20/2021] [Indexed: 11/16/2022]
Abstract
Fouling mitigation using chaotic advection caused by herringbone-shaped grooves in a flat membrane module is numerically investigated. The feed flow is laminar with the Reynolds number (Re) ranging from 50 to 500. In addition, we assume a constant permeate flux on the membrane surface. Typical flow characteristics include two counter-rotating flows and downwelling flows, which are highly influenced by the groove depth at each Re. Poincaré sections are plotted to represent the dynamical systems of the flows and to analyze mixing. The flow systems become globally chaotic as the groove depth increases above a threshold value. Fouling mitigation via chaotic advection is demonstrated using the dimensionless average concentration (c¯w*) on the membrane and its growth rate. When the flow system is chaotic, the growth rate of c¯w* drops significantly compared to that predicted from the film theory, demonstrating that chaotic advection is an attractive hydrodynamic technique that mitigates membrane fouling. At each Re, there exists an optimal groove depth minimizing c¯w* and the growth rate of c¯w*. Under the optimum groove geometry, foulants near the membrane are transported back to the bulk flow via the downwelling flows, distributed uniformly in the entire channel via chaotic advection.
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Affiliation(s)
- Kyung Tae Kim
- School of Aerospace and Mechanical Engineering, Korea Aerospace University, Goyang-si 10540, Gyeonggi-do, Korea; (K.T.K.); (J.E.P.)
| | - Jo Eun Park
- School of Aerospace and Mechanical Engineering, Korea Aerospace University, Goyang-si 10540, Gyeonggi-do, Korea; (K.T.K.); (J.E.P.)
| | - Seon Yeop Jung
- Department of Chemical Engineering, Dankook University, Yongin-si 16890, Gyeonggi-do, Korea;
| | - Tae Gon Kang
- School of Aerospace and Mechanical Engineering, Korea Aerospace University, Goyang-si 10540, Gyeonggi-do, Korea; (K.T.K.); (J.E.P.)
- Correspondence:
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Denizer D, ElSherbiny IMA, Ulbricht M, Panglisch S. Studying Fluid Characteristics Atop Surface Patterned Membranes via Particle Image Velocimetry. CHEM-ING-TECH 2021. [DOI: 10.1002/cite.202100043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Didem Denizer
- University of Duisburg-Essen Chair for Mechanical Process Engineering and Water Technology Lotharstraße 1 47057 Duisburg Germany
- University of Duisburg-Essen Chair for Technical Chemistry II Universitätsstraße 7 45141 Essen Germany
| | - Ibrahim M. A. ElSherbiny
- University of Duisburg-Essen Chair for Mechanical Process Engineering and Water Technology Lotharstraße 1 47057 Duisburg Germany
| | - Mathias Ulbricht
- University of Duisburg-Essen Chair for Technical Chemistry II Universitätsstraße 7 45141 Essen Germany
- Center for Water and Environmental Research (ZWU) Universitätsstraße 2 45141 Essen Germany
- DGMT German Society of Membrane Technology Geschäftsstelle ZWU Universitätsstraße 2 45141 Essen Germany
| | - Stefan Panglisch
- University of Duisburg-Essen Chair for Mechanical Process Engineering and Water Technology Lotharstraße 1 47057 Duisburg Germany
- Center for Water and Environmental Research (ZWU) Universitätsstraße 2 45141 Essen Germany
- DGMT German Society of Membrane Technology Geschäftsstelle ZWU Universitätsstraße 2 45141 Essen Germany
- IWW Water Center Moritzstraße 26 45476 Mülheim an der Ruhr Germany
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14
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Enhancing mechanistic models with neural differential equations to predict electrodialysis fouling. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Three-Dimensional Numerical Simulations and Antifouling Mechanism of Microorganisms on Microstructured Surfaces. Processes (Basel) 2021. [DOI: 10.3390/pr9020319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
As marine biofouling seriously affects the development and utilization of oceans, the antifouling technology of microstructured surface has become a research hotspot due to its green and environmentally friendly advantages. In the present research, the motion models of microorganisms on the surfaces of five rectangular micropits, in co-current and counter-current flow direction, were established. Dynamic mesh technology was used to simulate the movements of microorganisms with different radii in the near-wall area, and the fluid kinematics and shear stress distributions in different-sized micropits were compared. Furthermore, moving microorganisms were included in the three-dimensional microstructure model to achieve the real situation of biofouling. Simulation results revealed that the vortex flow velocity in the micropits increased with the increase of the inlet flow velocity and the existence of the vortex flow effectively reduced the formation of conditioning layers in the micropits. In the downstream and countercurrent directions, the average shear stresses on the wall decreased with the increase of the micropit depth and width, and the shear stress on the inner wall of the Mp1 micropit (a patterned surface arranged with cubes of 2 µm × 2 µm × 2 µm) was found to be the largest. A low shear stress region with a low flow velocity was formed around microorganisms in the process of approaching the microstructured surface. The shear stress gradient of micro-ridge steps increased with the approach of microorganisms, indicating that microridge edges had a better effect on reducing microbial attachment.
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Zhao Z, Muylaert K, Szymczyk A, Vankelecom IFJ. Harvesting microalgal biomass using negatively charged polysulfone patterned membranes: Influence of pattern shapes and mechanism of fouling mitigation. WATER RESEARCH 2021; 188:116530. [PMID: 33125997 DOI: 10.1016/j.watres.2020.116530] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 10/14/2020] [Accepted: 10/16/2020] [Indexed: 06/11/2023]
Abstract
Membranes have a lot of potential for harvesting microalgae, but membrane fouling is hampering their breakthrough. In this study, the effects of charge and corrugated surface on membrane filtration performance were investigated. The clean water permeance (CWP), the microalgae harvesting efficiency and the membrane flux for a microalgal broth were determined using patterned polysulfone (PSf) membranes with different shapes of the surface patterns and containing different charge densities by blending sulfonated polysulfone (sPSf). The flow behavior near the patterned membrane surface, as well as the interaction energy between membrane and microalgae were investigated using computational fluid dynamics (CFD) simulation and the improved extended "Derjaguin, Landau, Verwey, Overbeek" (XDLVO) theory, respectively. Membrane charge and pattern shape significantly improve the membrane performance. The critical pressures of all sPSf blend patterned membranes were higher than 2.5 bar. A 4.5w% sPSf blend patterned membranes with wave patterns showed the highest CWP (2300 L/m2 h bar) and membrane flux in the microalgal broth (1000 L/m2 h bar) with 100% harvesting efficiency. XDLVO analysis showed that sPSf blend patterned membranes prepared obtained the lowest interaction energy and highest energy barrier for microalgal attachment. CFD simulation showed a higher velocity and wall shear on the pattern apexes.
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Affiliation(s)
- Zhenyu Zhao
- Membrane Technology Group (MTG), Division cMACS, Faculty of Bio-Science Engineering, KU Leuven, Celestijnenlaan 200F, PO Box 2454, 3001 Leuven, Belgium
| | - Koenraad Muylaert
- Lab Aquatic Biology, Microbial en Molecular Systems, KU Leuven KULAK, E. Sabbelaan 53, B-8500 Kortrijk, Belgium
| | - Anthony Szymczyk
- Université de Rennes 1, Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, 263 Avenue du Ge'ral Leclerc, 35042 Rennes, cedex, France
| | - Ivo F J Vankelecom
- Membrane Technology Group (MTG), Division cMACS, Faculty of Bio-Science Engineering, KU Leuven, Celestijnenlaan 200F, PO Box 2454, 3001 Leuven, Belgium.
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Superhydrophilic polyvinylidene fluoride membrane with hierarchical surface structures fabricated via nanoimprint and nanoparticle grafting. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118332] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Synthesis of patterned PVDF ultrafiltration membranes: Spray-modified non-solvent induced phase separation. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118383] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Jung SY, Park JE, Kang TG, Ahn KH. Design Optimization for a Microfluidic Crossflow Filtration System Incorporating a Micromixer. MICROMACHINES 2019; 10:E836. [PMID: 31801229 PMCID: PMC6952986 DOI: 10.3390/mi10120836] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/21/2019] [Accepted: 11/29/2019] [Indexed: 11/17/2022]
Abstract
In this study, we report on a numerical study on design optimization for a microfluidic crossflow filtration system incorporated with the staggered herringbone micromixer (SHM). Computational fluid dynamics (CFD) and the Taguchi method were employed to find out an optimal set of design parameters, mitigating fouling in the filtration system. The flow and the mass transfer characteristics in a reference SHM model and a plain rectangular microchannel were numerically investigated in detail. Downwelling flows in the SHM model lead to backtransport of foulants from the permeable wall, which slows down the development of the concentration boundary layer in the filtration system. Four design parameters - the number of grooves, the groove depth, the interspace between two neighboring grooves, and the interspace between half mixing periods - were chosen to construct a set of numerical experiments using an orthogonal array from the Taguchi method. The Analysis of Variance (ANOVA) using the evaluated signal-to-noise (SN) ratios enabled us to identify the contribution of each design parameter on the performance. The proposed optimal SHM model indeed showed the lowest growth rate of the wall concentration compared to other SHM models.
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Affiliation(s)
- Seon Yeop Jung
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Korea;
| | - Jo Eun Park
- School of Aerospace and Mechanical Engineering, Korea Aerospace University, Goyang-si, Gyeonggi-do 10540, Korea;
| | - Tae Gon Kang
- School of Aerospace and Mechanical Engineering, Korea Aerospace University, Goyang-si, Gyeonggi-do 10540, Korea;
| | - Kyung Hyun Ahn
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Korea;
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Jung SY, Jung HI, Kang TG, Ahn KH. Fouling mitigation in crossflow filtration using chaotic advection: A numerical study. AIChE J 2019. [DOI: 10.1002/aic.16792] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Seon Yeop Jung
- School of Chemical and Biological Engineering Institute of Chemical Processes, Seoul National University Seoul Republic of Korea
| | - Hae In Jung
- School of Aerospace and Mechanical Engineering Korea Aerospace University, Goyang‐si Gyeonggi‐do Republic of Korea
| | - Tae Gon Kang
- School of Aerospace and Mechanical Engineering Korea Aerospace University, Goyang‐si Gyeonggi‐do Republic of Korea
| | - Kyung Hyun Ahn
- School of Chemical and Biological Engineering Institute of Chemical Processes, Seoul National University Seoul Republic of Korea
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Lee H, Kwak DB, Kim SC, Ou Q, Pui DY. Influence of colloidal particles with bimodal size distributions on retention and pressure drop in ultrafiltration membranes. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.04.054] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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