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Preparation and characterization of asymmetric ultrafiltration membrane for effective recovery of proteases

Nora’aini ALI, Fadhilati HASSAN, Sofiah HAMZAH

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2,   Pages 184-191 doi: 10.1007/s11705-012-1288-z

Abstract: Asymmetric polysulfone and polyethersulfone ultrafiltration (PSf-UF and PES-UF) membranes with threesimple dry/wet phase inversion technique and were characterized in terms of permeability coefficient, membraneThe membrane with the best performance, 15 wt-% PSf-UF, was further tested with actual surimi wash waterretention of protease was 96% with a flux of 25.6 L/(m ·h) which was achieved with the 15 wt-% PSf-UF membrane

Keywords： membrane     ultrafiltration     proteases     surimi wash water    

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On the fouling mechanism of polysulfone ultrafiltration membrane in the treatment of coal gasification

Xue Zou,Jin Li

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 4,   Pages 490-498 doi: 10.1007/s11705-016-1600-4

Abstract: Membrane fouling has been investigated by using a polysulfone ultrafiltration membrane with the molecularThe membrane fouling mechanism was simulated with three classical membrane fouling models.The membrane image and pollutants were analyzed by scanning electron microscopy and gas chromatography-massThrough regression analysis, the fouling of polysulfone ultrafiltration membrane could be fitted veryThe membrane pollutants were identified as phthalate esters and long-chain alkenes by GC-MS, and a certain

Keywords： membrane fouling     ultrafiltration membrane     coal gasification wastewater     rejection coefficient    

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Effects of a dynamic membrane formed with polyethylene glycol on the ultrafiltration of natural organic

Boksoon KWON, Noeon PARK, Jaeweon CHO,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 2,   Pages 172-182 doi: 10.1007/s11783-010-0002-y

Abstract: The formation of a dynamic membrane (DM) was investigated using polyethylene glycol (PEG) (molecularnatural organic matters (NOM), Dongbok Lake NOM (DLNOM) and Suwannee River NOM (SRNOM) were used in the ultrafiltrationTo evaluate the effects of the DM with PEG on ultrafiltration, various transport experiments were conducted, and the analyses of the NOM in the membrane feed and permeate were performed using high performanceformed with PEG can be summarized as follows: (1) PEG interferes with NOM transmission through the ultrafiltration

Keywords： dynamic membrane     natural organic matters     ultrafiltration membrane performance     effective PSD     effective    

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Electro-assisted CNTs/ceramic flat sheet ultrafiltration membrane for enhanced antifouling and separation

Shuo Wei, Lei Du, Shuo Chen, Hongtao Yu, Xie Quan

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1303-4

Abstract: Abstract • A stable and electroconductive CNTs/ceramic membrane was fabricated. • The membrane withUltrafiltration is employed as an important process for water treatment and reuse, which is of greatIn this work, a CNTs/ceramic flat sheet ultrafiltration membrane coupled with electro-assistance wasThe CNTs/ceramic flat sheet membrane was fabricated by coating cross-linked CNTs on ceramic membrane,that of the PVDF commercial membrane.

Keywords： Ultrafiltration     Electro-assistance     CNTs     Membrane fouling mitigation    

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Comparison of membrane fouling in ultrafiltration of down-flow and up-flow biological activated carbon

Lu Ao, Wenjun Liu, Yang Qiao, Cuiping Li, Xiaomao Wang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 6, doi: 10.1007/s11783-018-1046-7

Abstract:

The UF membrane fouling by down- and up-flow BAC effluents were compared

Up-flow BAC effluent fouled the membrane faster

Keywords： Ultrafiltration     Membrane fouling     Down-flow biological activated carbon     Up-flow biological activated carbon    

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weight and vinyl alcohol content on morphology, antifouling, and permeation properties of polysulfone ultrafiltrationmembrane: thermodynamic and formation hydrodynamic behavior

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1484-1502 doi: 10.1007/s11705-023-2331-y

Abstract: Rheological and ultrasonic separation kinetic measurements were also carried out to develop an ultrafiltrationmembrane mechanism.The extracted membrane properties and filtration capabilities were systematically compared to the proposedresults, valuable insights into the selection of hydrophilic copolymers were provided to tailor the membrane

Keywords： polysulfone     blend modification     ultrafiltration membrane     formation hydrodynamics     poly(ethylene-co-vinyl    

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Co-application of energy uncoupling and ultrafiltration in sludge treatment: Evaluations of sludge reduction, supernatant recovery and membrane fouling control

An Ding, Yingxue Zhao, Zhongsen Yan, Langming Bai, Haiyang Yang, Heng Liang, Guibai Li, Nanqi Ren

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 4, doi: 10.1007/s11783-020-1238-9

Abstract: Suitable dosage retarded biofouling during sludge water recovery by UF membrane.The purpose of this study was to determine the effect of using a low-pressure ultrafiltration membraneAnalysis of supernatant indicated that when energy uncoupling and membrane filtration were co-appliedIn contrast, high dosage of TCS aggravated membrane fouling by forming compact fouling layers.In general, this study found that the co-application of energy uncoupling and membrane filtration processes

Keywords： Sludge reduction     Energy uncoupling     Ultrafiltration membrane     Membrane fouling    

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Effect of protein on PVDF ultrafiltration membrane fouling behavior under different pH conditions: interface

Xudong WANG,Miao ZHOU,Xiaorong MENG,Lei WANG,Danxi HUANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0855-9

Abstract: pH values of the BSA solution significantly impact the process of membrane fouling.Dramatic flux decline is caused by membrane–BSA adhesion force at start of filtration.further determine the fouling behavior of bovine serum albumin (BSA) on different hydrophilic PVDF ultrafiltrationmembrane–BSA, which illustrated that the more hydrophilic the membrane was, the better antifouling abilitymembrane fouling by changing the AB component of free energy.

Keywords： PVDF membrane     Membrane fouling     Adhesion force     Protein     Interfacial free energy    

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Preparation and characterization of PVDF-PFSA flat sheet ultrafiltration membranes

Jiquan MA, Junhong ZHAO, Zhongbin REN, Lei LI

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 3,   Pages 301-310 doi: 10.1007/s11705-012-1204-6

Abstract: High performance polyvinylidene fluoride (PVDF) flat sheet ultrafiltration (UF) membranes have been preparedThe PVDF-PFSA membrane (5 wt-% PEG400+ 5 wt-% PFSA) had a pure water flux of 141.7 L/m ·h, a BSA rejectionThese properties were greatly superior to those of the native PVDF membrane (pure water flux of 5.6 L

Keywords： polyvinylidene fluoride     perfluorosulfonic acid     polyethylene glycol     flat sheet membrane     ultrafiltration    

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Fouling mechanisms in the early stage of an enhanced coagulation-ultrafiltration process

Haiqing CHANG,Baicang LIU,Wanshen LUO,Guibai LI

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 1,   Pages 73-83 doi: 10.1007/s11783-014-0692-7

Abstract: We investigated the fouling performances of ultrafiltration (UF) membrane for treating in-line coagulatedFinally, we discussed the impact of aeration on membrane fouling in this paper.Membrane pores blocking and cake filtration were confirmed as main membrane fouling mechanisms usingThe two stages of membrane fouling mechanisms were further deduced, namely, the membrane pore narrowingMembrane autopsy analysis using scanning electron microscopy (SEM) images of the membrane surface sampled

Keywords： coagulation-UF     trans-membrane pressure (TMP)     permeability     membrane fouling resistance     scanning electron    

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Preparation and antibacterial property of Polyethersulfone Hybrid Ultrafiltration Membrane Containing

Zhu Junyong,Wang Qiongke,Xu Xin,Liu Chuochuo,Liu Jindun,Zhang Yatao

Strategic Study of CAE 2014, Volume 16, Issue 7,   Pages 23-29

Abstract: The immobilized lysozyme of GO used as the addictive was blended with PES to prepare hybrid ultrafiltrationmembrane via phase inversion.The effect of GO-Ly content on the morphology, hydrophilic, separation,Meanwhile, the mechanical strength of hybrid membrane was also increased.The rejection of PVA30000-70000 was 99% and the antibacterial rate of the hybrid membrane against E.

Keywords： Graphene oxide     Lysozyme     Polyethersulfone Ultrafiltration membrane     Antibacterial property    

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Preparation and application of polyvinylidene fluoride ultrafiltration membranes by non-solovent induced

Lv Xiaolong,Wu Chunrui,Zhang Hao,Zhao Lihua

Strategic Study of CAE 2014, Volume 16, Issue 12,   Pages 35-45

Abstract:

The non-solvent phase separation (NIPS) is a highly efficient membranePVDF ultrafiltration (UF) membranes could be easily prepared by NIPS method.introduction about the research progress on the phase separation theory of PVDF UF membranes prepared by NIPS， membrane

Keywords： non-solvent induced phase inversion     polyvinylidene fluoride     ultrafiltration membrane     phase separationmechanism     membrane structure and property     membrane application    

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PVDF ultrafiltration membranes of controlled performance via blending PVDF-g-PEGMA copolymer synthesized

Shuai Wang, Tong Li, Chen Chen, Baicang Liu, John C. Crittenden

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 2, doi: 10.1007/s11783-017-0980-0

Abstract: study, we explored the effect of the copolymer mixture additives with different synthesis times on cast membraneled to a delayed phase inversion, thus hindering PEGMA segments in PVDF-g-PEGMA from migrating to the membraneHowever, more residual PEGMA contributed to helping more PEGMA segments migrate to the membrane surfaceThe pure water fluxes of the blended membrane with reaction times of 9 h, 19 h, and 29 h are 5445 L·mThe membrane with PVDF-g-PEGMA at 19 h exhibits the best foulant rejection and cleaning recovery due

Keywords： Polyvinylidene fluoride ultrafiltration membrane     Amphiphilic copolymer     Blended modification     High flux    

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Removal of Ni(II) ions from wastewater by micellar enhanced ultrafiltration using mixed surfactants

Amar D. Vibhandik, Kumudini V. Marathe

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1,   Pages 79-86 doi: 10.1007/s11705-014-1407-0

Abstract: Ni(II) ions were removed from aqueous waste using micellar enhanced ultrafiltration (MEUF) with a mixturedeclined with time, which was mainly attributed to concentration polarization rather than resistance from membrane

Keywords： MEUF     Ni (II) ions     membrane resistance     concentration polarization     mixed surfactants    

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The application of membrane separation technology in solving water security problem

Hou Li´an,Zhang Lin

Strategic Study of CAE 2014, Volume 16, Issue 7,   Pages 4-9

Abstract:

During the past 20 years, membrane technology industry has achieved greatdevelopment both in China and abroad, meanwhile, membrane technology plays an important role in solvingIn this article, the development of membrane separation technology and its applications in deep treatment

Keywords： water security     membrane separation     ultrafiltration     nanofiltration     reverse osmosis    

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Title Author Date Type Operation

Preparation and characterization of asymmetric ultrafiltration membrane for effective recovery of proteases

Nora’aini ALI, Fadhilati HASSAN, Sofiah HAMZAH

Journal Article

On the fouling mechanism of polysulfone ultrafiltration membrane in the treatment of coal gasification

Xue Zou,Jin Li

Journal Article

Effects of a dynamic membrane formed with polyethylene glycol on the ultrafiltration of natural organic

Boksoon KWON, Noeon PARK, Jaeweon CHO,

Journal Article

Electro-assisted CNTs/ceramic flat sheet ultrafiltration membrane for enhanced antifouling and separation

Shuo Wei, Lei Du, Shuo Chen, Hongtao Yu, Xie Quan

Journal Article

Comparison of membrane fouling in ultrafiltration of down-flow and up-flow biological activated carbon

Lu Ao, Wenjun Liu, Yang Qiao, Cuiping Li, Xiaomao Wang

Journal Article

weight and vinyl alcohol content on morphology, antifouling, and permeation properties of polysulfone ultrafiltrationmembrane: thermodynamic and formation hydrodynamic behavior

Journal Article

Co-application of energy uncoupling and ultrafiltration in sludge treatment: Evaluations of sludge reduction, supernatant recovery and membrane fouling control

An Ding, Yingxue Zhao, Zhongsen Yan, Langming Bai, Haiyang Yang, Heng Liang, Guibai Li, Nanqi Ren

Journal Article

Effect of protein on PVDF ultrafiltration membrane fouling behavior under different pH conditions: interface

Xudong WANG,Miao ZHOU,Xiaorong MENG,Lei WANG,Danxi HUANG

Journal Article

Preparation and characterization of PVDF-PFSA flat sheet ultrafiltration membranes

Jiquan MA, Junhong ZHAO, Zhongbin REN, Lei LI

Journal Article

Fouling mechanisms in the early stage of an enhanced coagulation-ultrafiltration process

Haiqing CHANG,Baicang LIU,Wanshen LUO,Guibai LI

Journal Article

Preparation and antibacterial property of Polyethersulfone Hybrid Ultrafiltration Membrane Containing

Zhu Junyong,Wang Qiongke,Xu Xin,Liu Chuochuo,Liu Jindun,Zhang Yatao

Journal Article

Preparation and application of polyvinylidene fluoride ultrafiltration membranes by non-solovent induced

Lv Xiaolong,Wu Chunrui,Zhang Hao,Zhao Lihua

Journal Article

PVDF ultrafiltration membranes of controlled performance via blending PVDF-g-PEGMA copolymer synthesized

Shuai Wang, Tong Li, Chen Chen, Baicang Liu, John C. Crittenden

Journal Article

Removal of Ni(II) ions from wastewater by micellar enhanced ultrafiltration using mixed surfactants

Amar D. Vibhandik, Kumudini V. Marathe

Journal Article

The application of membrane separation technology in solving water security problem

Hou Li´an,Zhang Lin

Journal Article