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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: To further determine the fouling behavior of bovine serum albumin (BSA) on different hydrophilic PVDF, and the adhesion force between BSA–BSA-fouled PVDF/PVA membranes was similar to that between BSA–BSA-fouledPVDF/PVP membranes, which indicated that the fouling was mainly caused by the adhesion interaction betweenmembrane and BSA.At the same pH condition, the PVDF/PVA membrane–BSA adhesion force was smaller than that of PVDF/PVP

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

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Preparation and properties of gel membrane containing porous PVDF-HFP matrix and cross-linked PEG for

ZHANG Mei, CUI Zhenyu, ZHU Baoku, HAN Gaige, XU Youyi, ZHANG Aiqing

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 89-94 doi: 10.1007/s11705-008-0011-6

Abstract: The lithium ion conducting gel polymer electrolyte membrane (Li-GPEM) based on porous poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP) matrix and cross-linked PEG network is prepared by a typicalBy immersing the porous PVDF-HFP membrane in liquid electrolyte containing poly(ethylene glycol) diacrylate

Keywords： ethylene     PEGDA     inversion     network     initiator    

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G-CNTs/PVDF mixed matrix membranes with improved antifouling properties and filtration performance

Xiaoyan Guo, Chunyu Li, Chenghao Li, Tingting Wei, Lin Tong, Huaiqi Shao, Qixing Zhou, Lan Wang, Yuan Liao

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 6, doi: 10.1007/s11783-019-1165-9

Abstract:

The P-OMWCNT-A-GO membrane was fabricated by

It should be due to the enhanced membrane pore

Keywords： carbon nanotubes     graphene oxide     mixed matrix membrane     nanohybrid     antifouling membrane     membrane hydrophilicity    

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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 preparedScanning electron microscopy measurements showed that the PVDF-PFSA blend membranes had more macroporesand finger-like structures than the native PVDF membranes.The 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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Engineering a High-Selectivity PVDF Hollow-Fiber Membrane for Cesium Removal Article

Shiyuan Ding, Lilan Zhang, Yang Li, Li´an Hou

Engineering 2019, Volume 5, Issue 5,   Pages 865-871 doi: 10.1016/j.eng.2019.07.021

Abstract:

In this study, a copper ferrocyanide/silica/polyvinylidene fluoride (CuFC/SiO2/PVDF) hollow-fiberThe PVDF hollow-fiber membrane with embedded SiO2 was used to fix the dispersion of CuFC nanoparticlesThe composite membrane showed a high Cs rejection rate and membrane flux at the three layers of CuFCThe CuFC/SiO2/PVDF hollowfiber composite membrane showed a particularly superior removal performanceTherefore, the CuFC/SiO2/PVDF hollow-fiber composite membrane can be used directly in engineering

Keywords： Cesium removal     Composite membrane     Copper ferrocyanide     Polyvinylidene fluoride    

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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: PVDF was blended with the copolymer mixture containing PVDF-g-PEGMA, solvent and residual PEGMA underIncreasing the reaction time of PVDF-g-PEGMA causes more PVDF-g-PEGMA and less residual PEGMA to be foundfrom migrating to the membrane surface.Therefore, we can control the membrane pore size distribution by decreasing the reaction time of PVDF-g-PEGMAThe 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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Preparation and characterization of poly (vinylidene fluoride)/TiO

Weiying LI, Xiuli SUN, Chen WEN, Hui LU, Zhiwei WANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 4,   Pages 492-502 doi: 10.1007/s11783-012-0407-x

Abstract: Poly(vinylidene fluoride) (PVDF)/titanium dioxide (TiO ) hybrid membranes were prepared using nano-TiOcharacterization results demonstrated that nano-sized TiO particles dispersed homogeneously within the PVDFAmong all the prepared membranes, PVDF/TiO membrane containing 10 vol.% TiO exhibited the best hydrophilicitywith an average pure water flux up to 237 L·m ·h , higher than that of unmodified PVDF membranes (155Besides, the bovine serum albumin rejection of the hybrid membrane was improved evidently from 52.3%

Keywords： poly(vinylidene fluoride) (PVDF) membrane     nano-TiO2     anti-fouling performance     water treatment    

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Preparation of polyvinylidene PVDF membrane via thermally induced phase separation and its application

Tang Yuanhui,Lin Yakai and Wang Xiaolin

Strategic Study of CAE 2014, Volume 16, Issue 12,   Pages 24-34

Abstract:

Nowadays membrane technology has been widely employed in the treatmentplenty of work focused on the preparation and industrialization of advanced polyvinylidene fluoride (PVDF) method based on thermodynamic and dynamic researches on the membrane formation process.Secondly， advanced production of PVDF hollow-fiber membrane was achieved by an effective combinationFinally， different modules were designed and fabricated according to the characteristic of PVDF membrane

Keywords： thermally induced phase separation     polyvinylidene fluoride     wastewater treatment     membrane preparation    

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Enhancing the Combustion Performance of Metastable Al@AP/PVDF Nanocomposites by Doping with Graphene Article

Shuwen Chen, De-Yun Tang, Xue-Xue Zhang, Jie-Yao Lyu, Wei He, Peijin Liu, Qi-Long Yan

Engineering 2020, Volume 6, Issue 9,   Pages 1019-1027 doi: 10.1016/j.eng.2020.02.014

Abstract: MICs are composed of aluminum (Al) as the fuel, ammonium perchlorate (AP) and polyvinylidene fluoride (PVDFThe AP/PVDF ratio was optimized by taking the maximum energy release as the criteria.It was shown that Al@AP/PVDF with 0.2% GO has the greatest density (2.57 g·cm–These values are much higher than those of Al@AP/PVDF (2.00  g·cm–3 andAl@AP/PVDF-GO has a better interfacial contact and particle distribution, which results in an improved

Keywords： Metastable intermixed composites     Al@AP/PVDF nanocomposites     Graphene oxide     Energy output     Combustion    

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Membrane fouling control by ultrasound in an anaerobic membrane bioreactor

SUI Pengzhe, WEN Xianghua, HUANG Xia

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 3,   Pages 362-367 doi: 10.1007/s11783-007-0062-9

Abstract: In this study, ultrasound was used to control the membrane fouling online in an anaerobic membrane bioreactorThe experimental results indicated that when the crossflow velocity was more than 1.0 m/s, membrane foulingWhen ultrasound was applied, an ultrasonic power range of 60–150 W was suitable for the membrane foulingThe experimental results showed that the membrane fouling was controlled so well that membrane filtration

Keywords： membrane filtration     filtration resistance     different     feasible ultrasonic     anaerobic membrane    

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Novel membrane separation technologies and membrane processes

Yanying Wei, Gongping Liu, Jianquan Luo, Libo Li, Zhi Xu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 717-719 doi: 10.1007/s11705-021-2053-y

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A critical review on thermodynamic mechanisms of membrane fouling in membrane-based water treatment process

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1729-6

Abstract:

● Fundamentals of membrane fouling are comprehensively reviewed.

Keywords： Membrane fouling     Thermodynamic mechanism     XDLVO theory     Flory-Huggins theory     Fouling migration    

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A review on membrane distillation in process engineering: design and exergy equations, materials and

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 592-613 doi: 10.1007/s11705-021-2105-3

Abstract: Further advances in the field of desalination can be provided by innovative processes such as membraneenhanced research activities and allowed a deeper understanding of mass and heat transport phenomena, membranewetting, polarization phenomena and have encouraged the use of materials particularly suitable for membraneThis work summarizes recent developments in the field of membrane distillation, studies for module lengthoptimization, commercial membrane modules developed, recent patents and advancement of membrane material

Keywords： membrane distillation     recent developments     heat and mass transfer     wetting     membrane material    

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Pilot plants of membrane technology in industry: Challenges and key learnings

Colin A. Scholes

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 3,   Pages 305-316 doi: 10.1007/s11705-019-1860-x

Abstract: Membrane technology holds great potential in gas separation applications, especially carbon dioxide captureTo achieve this potential, the outputs from global research endeavours into membrane technologies mustbe trialled in industrial processes, which requires membrane-based pilot plants.These pilot plants are critical to the commercialization of membrane technology, be it as gas separationHere, the author reports on his experience of operating membrane-based pilot plants for gas separation

Keywords： membrane gas separation     membrane contactors     carbon capture     pilot plants     key learnings    

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Membrane bioreactors for hospital wastewater treatment: recent advancements in membranes and processes

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 634-660 doi: 10.1007/s11705-021-2107-1

Abstract: In particular, membrane bioreactor (MBR) technology demonstrated high removal efficiency toward organicmicrofiltration) into the MBR units (hybrid MBRs) or the MBR as a pretreatment step and integrating other membraneprocesses as subsequent secondary purification step (integrated MBR-membrane systems).Then, an in-depth analysis was provided into the recent development of hybrid MBR and integrated MBR-membraneknowledge gaps in the field, highlighting the potential contribution of hybrid MBRs and integrated MBR-membrane

Keywords： membrane technology     membrane bioreactor     hospital wastewater     hybrid MBR     integrated MBR-membrane system    

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Title Author Date Type Operation

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 properties of gel membrane containing porous PVDF-HFP matrix and cross-linked PEG for

ZHANG Mei, CUI Zhenyu, ZHU Baoku, HAN Gaige, XU Youyi, ZHANG Aiqing

Journal Article

G-CNTs/PVDF mixed matrix membranes with improved antifouling properties and filtration performance

Xiaoyan Guo, Chunyu Li, Chenghao Li, Tingting Wei, Lin Tong, Huaiqi Shao, Qixing Zhou, Lan Wang, Yuan Liao

Journal Article

Preparation and characterization of PVDF-PFSA flat sheet ultrafiltration membranes

Jiquan MA, Junhong ZHAO, Zhongbin REN, Lei LI

Journal Article

Engineering a High-Selectivity PVDF Hollow-Fiber Membrane for Cesium Removal

Shiyuan Ding, Lilan Zhang, Yang Li, Li´an Hou

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

Preparation and characterization of poly (vinylidene fluoride)/TiO

Weiying LI, Xiuli SUN, Chen WEN, Hui LU, Zhiwei WANG

Journal Article

Preparation of polyvinylidene PVDF membrane via thermally induced phase separation and its application

Tang Yuanhui,Lin Yakai and Wang Xiaolin

Journal Article

Enhancing the Combustion Performance of Metastable Al@AP/PVDF Nanocomposites by Doping with Graphene

Shuwen Chen, De-Yun Tang, Xue-Xue Zhang, Jie-Yao Lyu, Wei He, Peijin Liu, Qi-Long Yan

Journal Article

Membrane fouling control by ultrasound in an anaerobic membrane bioreactor

SUI Pengzhe, WEN Xianghua, HUANG Xia

Journal Article

Novel membrane separation technologies and membrane processes

Yanying Wei, Gongping Liu, Jianquan Luo, Libo Li, Zhi Xu

Journal Article

A critical review on thermodynamic mechanisms of membrane fouling in membrane-based water treatment process

Journal Article

A review on membrane distillation in process engineering: design and exergy equations, materials and

Journal Article

Pilot plants of membrane technology in industry: Challenges and key learnings

Colin A. Scholes

Journal Article

Membrane bioreactors for hospital wastewater treatment: recent advancements in membranes and processes

Journal Article