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Enhanced permeability and biofouling mitigation of forward osmosis membranes via grafting graphene quantum

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1470-1483 doi: 10.1007/s11705-023-2329-5

Abstract: surface for optimizing forward osmosis (FO) membrane performance using the amide coupling reaction.The results jointly demonstrated hydrophilicity and surface roughness of the membrane enhanced afterIn the dynamic biofouling experiment, TFC-100 membrane showed a lower flux decline than TFC membrane.was notably better than that of TFC membrane (63%).highlights the potential applications of NH2-GOQDs for optimizing permeability and biofouling mitigation

Keywords： forward osmosis membrane     graphene oxide quantum dots     graft modification     anti-fouling membrane     XDLVO    

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Ceramic membrane fouling mechanisms and control for water treatment

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1726-9

Abstract:

● The fouling is summarized based on ceramic membrane performance

Keywords： Ceramic membrane     Fouling model     Fouling control    

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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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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 withthe electro-assistance exhibited optimal fouling mitigation. • The removal efficiency was improved byHowever, it suffers from severe membrane fouling and the trade-off between selectivity and permeabilityThe CNTs/ceramic flat sheet membrane was fabricated by coating cross-linked CNTs on ceramic membrane,This work offers a feasible approach for membrane fouling mitigation and effluent quality improvement

Keywords： Ultrafiltration     Electro-assistance     CNTs     Membrane fouling mitigation    

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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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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-massfouling occurs; when exceeds 1.2 bar, cake layer pollution aggravates.Through regression analysis, the fouling of polysulfone ultrafiltration membrane could be fitted very

Keywords： membrane fouling     ultrafiltration membrane     coal gasification wastewater     rejection coefficient    

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Enhanced cross-flow filtration with flat-sheet ceramic membranes by titanium-based coagulation for membranefouling control

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1531-x

Abstract:

• Ceramic membrane filtration showed high performance for surface water

Keywords： Ceramic membrane     Coagulation     Polytitanium chloride     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.XDLVO theory shows the polar or Lewis acid–base interaction plays a major role in membrane fouling.To further determine the fouling behavior of bovine serum albumin (BSA) on different hydrophilic PVDFPVA membranes was similar to that between BSA–BSA-fouled PVDF/PVP membranes, which indicated that the foulingmembrane fouling by changing the AB component of free energy.

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

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Relationship between sludge settleability and membrane fouling in a membrane bioreactor

SUN Yujiao, WANG Yong, HUANG Xia

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 2,   Pages 221-225 doi: 10.1007/s11783-007-0038-9

Abstract: The evolution of activated sludge settleability and its relationship to membrane fouling in a submergedmembrane bioreactor were studied at a lab-scale equipment fed with synthetic wastewater.period was shortened, and the two stages (smooth stage and accelerating stage) of the trans-membraneAt the same time, the increasing rate of trans-membrane pressure at the smooth stage decreased and thethickness of the cake layer on the membrane.

Keywords： Influence     bioreactor     activated     filamentous     lab-scale equipment    

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Aggravation of membrane fouling and methane leakage by a three-phase separator in an external anaerobicceramic membrane bioreactor

Chao Pang, Chunhua He, Zhenhu Hu, Shoujun Yuan, Wei Wang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 4, doi: 10.1007/s11783-019-1131-6

Abstract: itemcontent>

The existence of three-phase separator aggravated membranefouling rate of EAnCMBR.

Keywords： Anaerobic membrane bioreactor     Three-phase separator     Membrane fouling     Methane leakage     Sludge property    

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Effect of chemical dose on phosphorus removal and membrane fouling control in a UCT-MBR

Guangrong Sun, Chuanyi Zhang, Wei Li, Limei Yuan, Shilong He, Liping Wang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 1, doi: 10.1007/s11783-019-1085-8

Abstract: In this study, the performance of aluminum sulfate dosing in a University of Cape Town Membrane Bioreactorfouling.The membrane fouling was alleviated attributed to the increased average particle sizes and the decreasedaccumulation of the small sludge particles on membrane surface.surface, resulting in the mitigation of membrane fouling directly.

Keywords： Town Bioreactor (UCT-MBR)     enhanced nutrients removal     aluminum sulfate     sludge activity     membranefouling    

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A review on the forward osmosis applications and fouling control strategies for wastewater treatment

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 661-680 doi: 10.1007/s11705-021-2084-4

Abstract: However, membrane fouling is still a critical issue, which affects water flux stability, membrane lifeDifferent membrane fouling types and corresponding fouling mechanisms, including organic fouling, inorganicfouling, biofouling and combined fouling are therefore further discussed.The fouling control strategies including feed pre-treatment, operation condition optimization, membraneselection and modification, membrane cleaning and tailoring the chemistry of draw solution are also

Keywords： forward osmosis     wastewater treatment     membrane fouling     fouling control    

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and ultrafiltration in sludge treatment: Evaluations of sludge reduction, supernatant recovery and membranefouling 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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Metabolic uncoupler, 3,3′,4′,5-tetrachlorosalicylanilide addition for sludge reduction and fouling controlin a gravity-driven membrane bioreactor

An Ding, Yingxue Zhao, Huu Hao Ngo, Langming Bai, Guibai Li, Heng Liang, Nanqi Ren, Jun Nan

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1275-4

Abstract: fouling due to compact cake layer with low bio-activity.The gravity-driven membrane bioreactor (MBR)system is promising for decentralized sewage treatment becauseHowever, the growing sludge not only increases membrane fouling, but also augments operational complexitieslayer with low bioactivity developing on the membrane surface, causing higher cake layer and pore blockinglayers at different dosages, with practical relevance for in situ sludge reduction and membrane fouling

Keywords： Gravity-driven membrane (GDM)     Energy uncoupling     Permeability     Sludge reduction     Membrane fouling     Fouling    

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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

The combined effects dominated irreversible fouling

The extent of fouling exacerbated by inorganic

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

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Title Author Date Type Operation

Enhanced permeability and biofouling mitigation of forward osmosis membranes via grafting graphene quantum

Journal Article

Ceramic membrane fouling mechanisms and control for water treatment

Journal Article

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

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

Membrane fouling control by ultrasound in an anaerobic membrane bioreactor

SUI Pengzhe, WEN Xianghua, HUANG Xia

Journal Article

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

Xue Zou,Jin Li

Journal Article

Enhanced cross-flow filtration with flat-sheet ceramic membranes by titanium-based coagulation for membranefouling control

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

Relationship between sludge settleability and membrane fouling in a membrane bioreactor

SUN Yujiao, WANG Yong, HUANG Xia

Journal Article

Aggravation of membrane fouling and methane leakage by a three-phase separator in an external anaerobicceramic membrane bioreactor

Chao Pang, Chunhua He, Zhenhu Hu, Shoujun Yuan, Wei Wang

Journal Article

Effect of chemical dose on phosphorus removal and membrane fouling control in a UCT-MBR

Guangrong Sun, Chuanyi Zhang, Wei Li, Limei Yuan, Shilong He, Liping Wang

Journal Article

A review on the forward osmosis applications and fouling control strategies for wastewater treatment

Journal Article

and ultrafiltration in sludge treatment: Evaluations of sludge reduction, supernatant recovery and membranefouling control

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

Journal Article

Metabolic uncoupler, 3,3′,4′,5-tetrachlorosalicylanilide addition for sludge reduction and fouling controlin a gravity-driven membrane bioreactor

An Ding, Yingxue Zhao, Huu Hao Ngo, Langming Bai, Guibai Li, Heng Liang, Nanqi Ren, Jun Nan

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