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Preliminary study of groundwater denitrification using a composite membrane bioreactor

Lihui ZHANG, Guomin CAO, Yulei FEI, Hong DING, Mei SHENG, Yongdi LIU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 604-609 doi: 10.1007/s11783-011-0274-x

Abstract: A composite membrane bioreactor (CMBR) integrating the immobilized cell technique and the membrane separationcontaining influent and the other with a dilute ethanol solution; the compartments were separated by the compositemembrane consisting of a microporous membrane facing the influent and an immobilized cell membrane facingNitrate and ethanol molecules diffused from the respective compartments into the immobilized cell membraneThe microporous membrane was attached to one side of the immobilized cell membrane for retention of the

Keywords： groundwater     nitrate     denitrification     composite membrane bioreactor (CMBR)     immobilized cell membrane    

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Preparation and performance of novel thermal stable composite nanofiltration membrane

WU Chunrui, ZHANG Shouhai, YANG Fajie, YAN Chun, JIAN Xigao

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 402-406 doi: 10.1007/s11705-008-0063-7

Abstract: The novel thermal stable composite nanofiltration membranes were prepared through the interfacial polymerizationThe effects of polymerization and testing conditions on membrane performance were studied.The surface morphologies of the substrate and the composite membranes were observed by means of scanningThe composite membranes show good thermal stability.When tested at 1.0 MPa and 60°C, the rejection of the composite membrane for dyes was kept at high level

Keywords： electron microscopy     rejection     composite membrane     interfacial polymerization     thermal stability    

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Fabrication of high-performance pervaporation composite membrane for alkaline wastewater reclamation

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 709-719 doi: 10.1007/s11705-021-2078-2

Abstract: The merit can be applied to treat alkaline wastewater if the membrane has superior alkali-resistance.In this paper, we used polyethylene microfiltration membrane as the substrate and deposited a glutaraldehydePervaporation flux of the composite membrane reached 35€±€2 kg·m–2·h–1 with a sodiumThe desalination performance was stable after soaking the membrane in a 20 wt-% NaOH solution at roomMoreover, the membrane was stable in 4 wt-% sulfuric acid and a 500 mg·L−1 sodium hypochlorite

Keywords： pervaporation     alkaline solution concentration     polyethylene membrane     acid resistance     chlorine tolerance    

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Synthesis of novel magneto-hybrid polyoxometalate composite membrane with simultaneous photocatalytic

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1450-1459 doi: 10.1007/s11705-023-2310-3

Abstract: Membrane technology is ideal for removing aqueous humic acid, but humic acid deposits cause membranesurface under a magnetic field to enhance the self-cleaning and antifouling functionalities of the membranecompared with neat PES membrane.Furthermore, after exposure to ultraviolet light, the magneto-HPOM-PES membrane can be recovered afterMeanwhile, the magneto-HPOM-PES membrane could efficiently maintain 100% humic acid rejection for the

Keywords： magneto-hybrid polyoxometalate nanocomposite     composite membrane     antifouling     self-cleaning     magnetic    

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Preparation and characterization of novel carbon molecular sieve membrane/PSSF composite by pyrolysis

Ying Yan, Peng Huang, Huiping Zhang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 772-783 doi: 10.1007/s11705-019-1827-y

Abstract: Carbon molecular sieve membrane (CMSM)/paper-like stainless steel fibers (PSSF) has been manufacturedon the basis of Yoon-Nelson model, which suggested that structured fixed bed padded with CMSM/PSSF composite

Keywords： carbon molecular sieve membrane     stainless steel fibers     pyrolysis     structured fixed bed     toluene    

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Effect of adding a smart potassium ion-responsive copolymer into polysulfone support membrane on theperformance of thin-film composite nanofiltration membrane

Meibo He, Zhuang Liu, Tong Li, Chen Chen, Baicang Liu, John C. Crittenden

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 2,   Pages 400-414 doi: 10.1007/s11705-018-1757-0

Abstract: Thin-film composite (TFC) nanofiltration (NF) membranes were fabricated via the interfacial polymerization; (2) With K in the PIP solution, the surface roughness and water permeability of the resultant NF membraneNIPAM-co-AAB C ) from hydrophilic to hydrophobic; (3) After a curing treatment at 95 °C, the improved NF membrane

Keywords： nanofiltration     interfacial polymerization     support membrane     potassium ion-responsive     thin-film composite    

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Novel Ag-AgBr decorated composite membrane for dye rejection and photodegradation under visible light

Yixing Wang, Liheng Dai, Kai Qu, Lu Qin, Linzhou Zhuang, Hu Yang, Zhi Xu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 892-901 doi: 10.1007/s11705-020-2011-0

Abstract: Herein, we bound Ag-AgBr nanoparticles onto a synthesized polyacrylonitrile-ethanolamine (PAN-ETA) membraneAdditionally, the composite membranes exhibited potential long-term stability for dye/salt separation

Keywords： Ag-AgBr     dye rejection     photodegradation     visible light    

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Preparation and application of thin film composite reverse osmosis and nanofiltration membranes

Zhang Qifeng,Li Shenghai, Wang Tunyu,Li Lei, Zhang Suobo

Strategic Study of CAE 2014, Volume 16, Issue 12,   Pages 17-23

Abstract: of the resulting TFC membranes， a deeper insight into the relationship between the properties of the membraneThe result reveal that， as the functionality of the acid chloride monomer increased， the resulting membraneAdditionally， a novel positively charged thin film composite NF membrane was prepared utilizing the highlyThis NF membrane exhibits high efficiencies for many NF applications including rejection of divalent

Keywords： RO membrane     nanofiltration membrane     biphenyl polyacyl chloride    

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Molecular level understanding of CO2 capture in ionic liquid/polyimide composite membrane

Linlin You, Yandong Guo, Yanjing He, Feng Huo, Shaojuan Zeng, Chunshan Li, Xiangping Zhang, Xiaochun Zhang

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2,   Pages 141-151 doi: 10.1007/s11705-020-2009-7

Abstract: Ionic liquid (IL)/polyimide (PI) composite membranes demonstrate promise for use in CO separation applicationsHowever, few studies have focused on the microscopic mechanism of CO in these composite systems, whichincreasing IL concentrations up to 35 wt-% due to the decrease of the fractional free volume of the compositemembrane.

Keywords： carbon dioxide     ionic liquid     6FDA-TeMPD     composite membrane     molecular dynamics simulation    

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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: study, a copper ferrocyanide/silica/polyvinylidene fluoride (CuFC/SiO2/PVDF) hollow-fiber compositeThe surface morphology and chemical composition of the composite membrane were analyzed using scanningThe 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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Cross-stacked super-aligned carbon nanotube/activated carbon composite electrodes for efficient water

Min Li, Shuai Liang, Yang Wu, Meiyue Yang, Xia Huang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1286-1

Abstract: The current study demonstrated a novel super-aligned carbon nanotube (SACNT)/activated carbon (AC) compositethe treatment runs at 0.8, 1.0, and 1.2 V achieved a 2.40-fold, 2.08-fold, and 2.43-fold reduction in membraneand 1.2 V were also roughly two times smaller than that at 0 V, indicating a dramatical reduction of membrane

Keywords： Carbon nanotube     Super aligned     Conductive membrane     Capacitive deionization     Ultrafiltration     Desalination    

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Recent progress of two-dimensional nanosheet membranes and composite membranes for separation applications

Wei Wang, Yanying Wei, Jiang Fan, Jiahao Cai, Zong Lu, Li Ding, Haihui Wang

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 793-819 doi: 10.1007/s11705-020-2016-8

Abstract: Two-dimensional (2D) materials have emerged as a class of promising materials to prepare high-performance 2D membranes for various separation applications. The precise control of the interlayer nanochannel/sub-nanochannel between nanosheets or the pore size of nanosheets within 2D membranes enables 2D membranes to achieve promising molecular sieving performance. To date, many 2D membranes with high permeability and high selectivity have been reported, exhibiting high separation performance. This review presents the development, progress, and recent breakthrough of different types of 2D membranes, including membranes based on porous and non-porous 2D nanosheets for various separations. Separation mechanism of 2D membranes and their fabrication methods are also reviewed. Last but not the least, challenges and future directions of 2D membranes for wide utilization are discussed in brief.

Keywords： membrane separation     2D membranes     2D materials     nanosheet    

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Facile fabrication of dolomite-doped biochar/bentonite for effective removal of phosphate from complex wastewaters

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 6, doi: 10.1007/s11783-023-1671-7

Abstract:

● Dolomite-doped biochar/bentonite was synthesized for phosphate removal.

Keywords： Biochar-bentonite composite     Dolomite doping     Phosphate adsorption     Polymeric matrix membrane     Adsorption-filtration    

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Technological development and engineering applications of novel steel-concrete composite structures

Jianguo NIE, Jiaji WANG, Shuangke GOU, Yaoyu ZHU, Jiansheng FAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 1-14 doi: 10.1007/s11709-019-0514-x

Abstract: community, the development and proposition of novel resource-saving high-performance steel-concrete compositeThis paper summarizes the technical principles and applications of the long-span bi-directional compositeon uplift-restricted and slip-permitted (URSP) connectors, the steel plate concrete composite (SPCC)strengthen technique, and the innovative composite joints.The research results also indicate that the high-performance steel-concrete composite structures have

Keywords： high-performance composite structure     bi-directional composite     composite transfer     uplift-restricted andslip-permitted connectors     steel plate concrete composite strengthen    

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Polydimethylsiloxane (PDMS) Composite Membrane Fabricated on the Inner Surface of a Ceramic Hollow Fiber Article

Ziye Dong, Haipeng Zhu, Yingting Hang, Gongping Liu, Wanqin Jin

Engineering 2020, Volume 6, Issue 1,   Pages 89-99 doi: 10.1016/j.eng.2019.10.012

Abstract: fabrication of a separation layer on the inner surface of a hollow fiber (HF) substrate to form an HF compositemembrane offers exciting opportunities for industrial applications, although challenges remain.This work reports on the fabrication of a polydimethylsiloxane (PDMS) composite membrane on the innerThe nanostructures and transport properties of the PDMS HF composite membranes were optimized by controllingThe optimized inner surface of the PDMS/ceramic HF composite membranes with a thin and defect-free separation

Keywords： Ceramic hollow fiber Inner membrane     Pervaporation     Polydimethylsiloxane     Butanol    

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Title Author Date Type Operation

Preliminary study of groundwater denitrification using a composite membrane bioreactor

Lihui ZHANG, Guomin CAO, Yulei FEI, Hong DING, Mei SHENG, Yongdi LIU

Journal Article

Preparation and performance of novel thermal stable composite nanofiltration membrane

WU Chunrui, ZHANG Shouhai, YANG Fajie, YAN Chun, JIAN Xigao

Journal Article

Fabrication of high-performance pervaporation composite membrane for alkaline wastewater reclamation

Journal Article

Synthesis of novel magneto-hybrid polyoxometalate composite membrane with simultaneous photocatalytic

Journal Article

Preparation and characterization of novel carbon molecular sieve membrane/PSSF composite by pyrolysis

Ying Yan, Peng Huang, Huiping Zhang

Journal Article

Effect of adding a smart potassium ion-responsive copolymer into polysulfone support membrane on theperformance of thin-film composite nanofiltration membrane

Meibo He, Zhuang Liu, Tong Li, Chen Chen, Baicang Liu, John C. Crittenden

Journal Article

Novel Ag-AgBr decorated composite membrane for dye rejection and photodegradation under visible light

Yixing Wang, Liheng Dai, Kai Qu, Lu Qin, Linzhou Zhuang, Hu Yang, Zhi Xu

Journal Article

Preparation and application of thin film composite reverse osmosis and nanofiltration membranes

Zhang Qifeng,Li Shenghai, Wang Tunyu,Li Lei, Zhang Suobo

Journal Article

Molecular level understanding of CO2 capture in ionic liquid/polyimide composite membrane

Linlin You, Yandong Guo, Yanjing He, Feng Huo, Shaojuan Zeng, Chunshan Li, Xiangping Zhang, Xiaochun Zhang

Journal Article

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

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

Journal Article

Cross-stacked super-aligned carbon nanotube/activated carbon composite electrodes for efficient water

Min Li, Shuai Liang, Yang Wu, Meiyue Yang, Xia Huang

Journal Article

Recent progress of two-dimensional nanosheet membranes and composite membranes for separation applications

Wei Wang, Yanying Wei, Jiang Fan, Jiahao Cai, Zong Lu, Li Ding, Haihui Wang

Journal Article

Facile fabrication of dolomite-doped biochar/bentonite for effective removal of phosphate from complex wastewaters

Journal Article

Technological development and engineering applications of novel steel-concrete composite structures

Jianguo NIE, Jiaji WANG, Shuangke GOU, Yaoyu ZHU, Jiansheng FAN

Journal Article

Polydimethylsiloxane (PDMS) Composite Membrane Fabricated on the Inner Surface of a Ceramic Hollow Fiber

Ziye Dong, Haipeng Zhu, Yingting Hang, Gongping Liu, Wanqin Jin

Journal Article