1
|
Abounahia N, Shahab AA, Khan MM, Qiblawey H, Zaidi SJ. A Comprehensive Review of Performance of Polyacrylonitrile-Based Membranes for Forward Osmosis Water Separation and Purification Process. MEMBRANES 2023; 13:872. [PMID: 37999358 PMCID: PMC10672921 DOI: 10.3390/membranes13110872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 09/30/2023] [Accepted: 10/04/2023] [Indexed: 11/25/2023]
Abstract
Polyacrylonitrile (PAN), with its unique chemical, electrical, mechanical, and thermal properties, has become a crucial acrylic polymer for the industry. This polymer has been widely used to fabricate ultrafiltration, nanofiltration, and reverse osmosis membranes for water treatment applications. However, it recently started to be used to fabricate thin-film composite (TFC) and fiber-based forward osmosis (FO) membranes at a lab scale. Phase inversion and electrospinning methods were the most utilized techniques to fabricate PAN-based FO membranes. The PAN substrate layer could function as a good support layer to create TFC and fiber membranes with excellent performance under FO process conditions by selecting the proper modification techniques. The various modification techniques used to enhance PAN-based FO performance include interfacial polymerization, layer-by-layer assembly, simple coating, and incorporating nanofillers. Thus, the fabrication and modification techniques of PAN-based porous FO membranes have been highlighted in this work. Also, the performance of these FO membranes was investigated. Finally, perspectives and potential directions for further study on PAN-based FO membranes are presented in light of the developments in this area. This review is expected to aid the scientific community in creating novel effective porous FO polymeric membranes based on PAN polymer for various water and wastewater treatment applications.
Collapse
Affiliation(s)
- Nada Abounahia
- UNESCO Chair in Desalination and Water Treatment, Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar
| | - Arqam Azad Shahab
- UNESCO Chair in Desalination and Water Treatment, Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar
| | - Maryam Mohammad Khan
- UNESCO Chair in Desalination and Water Treatment, Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar
| | - Hazim Qiblawey
- Department of Chemical Engineering, College of Engineering, Qatar University, Doha P.O. Box 2713, Qatar;
| | - Syed Javaid Zaidi
- UNESCO Chair in Desalination and Water Treatment, Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar
| |
Collapse
|
2
|
Zhang Q, Zhou R, Peng X, Li N, Dai Z. Development of Support Layers and Their Impact on the Performance of Thin Film Composite Membranes (TFC) for Water Treatment. Polymers (Basel) 2023; 15:3290. [PMID: 37571184 PMCID: PMC10422403 DOI: 10.3390/polym15153290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/30/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023] Open
Abstract
Thin-film composite (TFC) membranes have gained significant attention as an appealing membrane technology due to their reversible fouling and potential cost-effectiveness. Previous studies have predominantly focused on improving the selective layers to enhance membrane performance. However, the importance of improving the support layers has been increasingly recognized. Therefore, in this review, preparation methods for the support layer, including the traditional phase inversion method and the electrospinning (ES) method, as well as the construction methods for the support layer with a polyamide (PA) layer, are analyzed. Furthermore, the effect of the support layers on the performance of the TFC membrane is presented. This review aims to encourage the exploration of suitable support membranes to enhance the performance of TFC membranes and extend their future applications.
Collapse
Affiliation(s)
- Qing Zhang
- School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
| | - Rui Zhou
- School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
| | - Xue Peng
- School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
| | - Nan Li
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
- School of Chemistry, Tiangong University, Tianjin 300387, China
| | - Zhao Dai
- School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
| |
Collapse
|
3
|
Mokarinezhad N, Hosseini SS, Nxumalo EN. Development of polyamide/
polyacrylonitrile
thin film composite
RO
membranes by interfacial polymerization assisted with an aromatic/aliphatic organic solvent mixture. J Appl Polym Sci 2023. [DOI: 10.1002/app.53811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Affiliation(s)
- Nikan Mokarinezhad
- Membrane Science and Technology Research Group, Department of Chemical Engineering Tarbiat Modares University Tehran Iran
| | - Seyed Saeid Hosseini
- Membrane Science and Technology Research Group, Department of Chemical Engineering Tarbiat Modares University Tehran Iran
- Institute for Nanotechnology and Water Sustainability, College of Science, Engineering and Technology University of South Africa Johannesburg South Africa
| | - Edward Ndumiso Nxumalo
- Institute for Nanotechnology and Water Sustainability, College of Science, Engineering and Technology University of South Africa Johannesburg South Africa
| |
Collapse
|
4
|
Singh SK, Sharma C, Maiti A. Modeling and experimental validation of forward osmosis process: Parameters selection, permeate flux prediction, and process optimization. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|
5
|
Wu L, Li Q, Ma C, Li M, Yu Y. A novel conductive carbon-based forward osmosis membrane for dye wastewater treatment. CHEMOSPHERE 2022; 308:136367. [PMID: 36088972 DOI: 10.1016/j.chemosphere.2022.136367] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 08/30/2022] [Accepted: 09/04/2022] [Indexed: 06/15/2023]
Abstract
Forward osmosis (FO) membrane fouling is one of the main reasons that hinder the further application of FO technology in the treatment of dye wastewater. To alleviate membrane fouling, a conductive coal carbon-based substrate and polydopamine nanoparticles (PDA NPs) interlayer composite FO membrane (CPFO) was prepared by interfacial polymerization (IP). CPFO-10 membrane prepared by depositing 10 mL of PDA NPs solution exhibited an optimum performance with water flux of 7.56 L/(m2h) for FO mode and 10.75 L/(m2h) for pressure retarded osmosis (PRO) mode, respectively. For rhodamine B and chrome black T dye wastewater treatment, the water flux losses were reduced by 21.6%, and 14.5% under the voltages of +1.5 V, and -1.5 V, respectively, compared with no voltage applied after the device was operated for 8 h. The applied voltage had little effect on the fouling mitigation performance of the CPFO membrane for neutral charged cresol red. After the device was operated for 4 cycles, the rejection rates of dyes wastewater treated by the CPFO membranes with applied voltage were close to 100%. The flux decline rate and flux recovery rate of CPFO membrane for rhodamine B and chrome black T wastewater treatment under application of +1.5 V and -1.5 V voltage after 4 cycles were 11.6%, 99.2%, and 16.7%, 98.9%, respectively. Therefore, the voltage-applied CPFO membrane still maintained good rejection and antifouling performance in long-term operation. This study provides a new insight into the preparation of conductive FO membranes for dye wastewater treatment and membrane fouling control.
Collapse
Affiliation(s)
- Lei Wu
- Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun, 130000, China
| | - Qianqian Li
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Cong Ma
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China; Tianjin Haiyuanhui Technology Co., Ltd., Tianjin, 300457, China.
| | - Ming Li
- Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun, 130000, China
| | - Yujuan Yu
- Center of Environmental Emergency and Accident Investigation of Changchun, Changchun, 130000, China
| |
Collapse
|
6
|
Malik N, Bulasara VK, Basu S. Surfactant induced ultrafiltration of heavy metal ions from aqueous solutions using a hybrid polymer–ceramic composite membrane. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.07.013] [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]
|
7
|
Samieirad S, Mousavi SM, Saljoughi E. Novel chlorine resistant thin-film composite forward osmosis membrane: Preparation and performance evaluation in the regeneration of MEG aqueous solution. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2021.11.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
8
|
Wang Z, Liang S, Kang Y, Zhao W, Xia Y, Yang J, Wang H, Zhang X. Manipulating interfacial polymerization for polymeric nanofilms of composite separation membranes. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2021.101450] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
9
|
Ndiaye I, Chaoui I, Vaudreuil S, Bounahmidi T. Selection of substrate manufacturing techniques of polyamine‐based
thin‐film
composite membranes for forward osmosis process. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25733] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Issa Ndiaye
- Euro‐Med Research Institute, Euro‐Med University of Fes (UEMF) Fes Morocco
| | - Imane Chaoui
- Euro‐Med Research Institute, Euro‐Med University of Fes (UEMF) Fes Morocco
- Laboratoires d'Analyse et Synthèse des Procédés industriels, Ecole Mohammadia d'Ingénieurs, Université Mohammed V de Rabat Rabat‐Agdal Morocco
| | | | - Tijani Bounahmidi
- Euro‐Med Research Institute, Euro‐Med University of Fes (UEMF) Fes Morocco
| |
Collapse
|
10
|
Kim DY, Park H, Park YI, Lee JH. Polyvinyl alcohol hydrogel-supported forward osmosis membranes with high performance and excellent pH stability. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.04.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
11
|
Al‐Musawy WK, Al‐Furaiji MH, Alsalhy QF. Synthesis and characterization of
PVC‐TFC
hollow fibers for forward osmosis application. J Appl Polym Sci 2021. [DOI: 10.1002/app.50871] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Wafaa Kh. Al‐Musawy
- Membrane Technology Research Unit, Chemical Engineering, Department University of Technology Baghdad Iraq
- Environment and Water Directorate Ministry of Science and Technology Baghdad Iraq
| | | | - Qusay F. Alsalhy
- Membrane Technology Research Unit, Chemical Engineering, Department University of Technology Baghdad Iraq
| |
Collapse
|
12
|
Shin MG, Seo JY, Park H, Park YI, Lee JH. Overcoming the permeability-selectivity trade-off of desalination membranes via controlled solvent activation. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118870] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
13
|
Kwon SJ, Park K, Kim DY, Zhan M, Hong S, Lee JH. High-performance and durable pressure retarded osmosis membranes fabricated using hydrophilized polyethylene separators. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118796] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
14
|
Alihemati Z, Hashemifard SA, Matsuura T, Ismail AF. Feasibility of using polycarbonate as a substrate of thin film composite membrane in forward osmosis. J Appl Polym Sci 2021. [DOI: 10.1002/app.50511] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Z. Alihemati
- Sustainable Membrane Technology Research Group (SMTRG), Faculty of Petroleum, Gas and Petrochemical Engineering (FPGPE) Persian Gulf University (PGU) Bushehr Iran
| | - S. A. Hashemifard
- Sustainable Membrane Technology Research Group (SMTRG), Faculty of Petroleum, Gas and Petrochemical Engineering (FPGPE) Persian Gulf University (PGU) Bushehr Iran
| | - T. Matsuura
- Advanced Membrane Technology Research Centre (AMTEC) Universiti Teknologi Malaysia Skudai Malaysia
- Department of Chemical and Biological Engineering University of Ottawa Ottawa Canada
| | - A. F. Ismail
- Advanced Membrane Technology Research Centre (AMTEC) Universiti Teknologi Malaysia Skudai Malaysia
| |
Collapse
|
15
|
Nakagawa K, Uchida K, Wu JLC, Shintani T, Yoshioka T, Sasaki Y, Fang LF, Kamio E, Shon HK, Matsuyama H. Fabrication of porous polyketone forward osmosis membranes modified with aromatic compounds: Improved pressure resistance and low structural parameter. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117400] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
16
|
Lee S, Straub AP. Opportunities for high productivity and selectivity desalination via osmotic distillation with improved membrane design. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
17
|
Effects of the Substrate on Interfacial Polymerization: Tuning the Hydrophobicity via Polyelectrolyte Deposition. MEMBRANES 2020; 10:membranes10100259. [PMID: 32993162 PMCID: PMC7599731 DOI: 10.3390/membranes10100259] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/13/2020] [Accepted: 09/21/2020] [Indexed: 11/21/2022]
Abstract
Interfacial polymerization (IP) has been the key method for the fabrication of the thin film composite (TFC) membranes that are extensively employed in reverse osmosis (RO) and forward osmosis (FO). However, the role of the substrate surface hydrophilicity in the formation of the IP-film remains a controversial issue to be further addressed. This study characterized the IP films formed on a series of polyacrylonitrile (PAN) substrates whose hydrophilicities (from ~38 to ~93 degrees) were varied via different approaches, including the alkaline treatment and the deposition of various polycations. It was revealed that delamination could occur when the IP film was formed on a relatively hydrophilic surface; the integrity of the TFC membranes was substantially improved, owing to the modification of the polyelectrolyte deposition. On the other hand, the characterization indicated that the TFC membrane could have an enhanced efficiency (with a factor of ~2) when the substrate was relatively hydrophilic. It was established that the polyelectrolyte deposition could be exploited to effectively tune the substrate surface hydrophobicity, thereby providing more degrees of freedom for the optimization of the TFC membranes fabrication.
Collapse
|
18
|
Preparation and Characterization of Polyphenylsulfone (PPSU) Membranes for Biogas Upgrading. MATERIALS 2020; 13:ma13122847. [PMID: 32630434 PMCID: PMC7345145 DOI: 10.3390/ma13122847] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/19/2020] [Accepted: 06/22/2020] [Indexed: 11/20/2022]
Abstract
Asymmetric polyphenylsulfone (PPSU) membranes were fabricated by a non-solvent induced phase inversion method. Glycerin and silica nanoparticles were added into the polymer solution to investigate their effects on the material properties and gas separation performance of prepared membranes. The morphology and structure of PPSU membranes were analyzed by scanning electron microscopy (SEM), the surface roughness of the selective layer was analyzed by atomic force microscopy (AFM), and the surface free energy was calculated based on the contact angle measurements by using various solvents. The gas separation performance of PPSU membranes was estimated by measuring the permeability of CO2 and CH4. The addition of glycerin as a nonsolvent into the polymer solution changed the cross-section structure from finger-like structure into sponge-like structure due to the delayed liquid-liquid demixing process, which was confirmed by SEM analysis. The incorporation of silica nanoparticles into PPSU membranes slightly increased the hydrophilicity, which was confirmed by water contact angle results. PPSU membrane fabricated from the polymer solution containing 10 wt.% glycerin showed the best CO2/CH4 selectivity of 3.86 and the CO2 permeability of 1044.01 Barrer. Mixed matrix PPSU membrane containing 0.1 wt.% silica nanoparticles showed the CO2/CH4 selectivity of 3.16 and the CO2 permeability of 1202.77 Barrer.
Collapse
|
19
|
Park K, Kim DY, Jang YH, Kim MG, Yang DR, Hong S. Comprehensive analysis of a hybrid FO/crystallization/RO process for improving its economic feasibility to seawater desalination. WATER RESEARCH 2020; 171:115426. [PMID: 31887548 DOI: 10.1016/j.watres.2019.115426] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 11/28/2019] [Accepted: 12/19/2019] [Indexed: 06/10/2023]
Abstract
In this study, the FO/crystallization/RO hybrid process was analyzed comprehensively, including experimentation, modeling, and energy and cost estimation, to examine and improve its feasibility to seawater desalination. A new operating strategy by heating the FO process to 45 °C was suggested, and a detailed process design was conducted. A comparative analysis with the conventional seawater reverse osmosis (SWRO) process was performed in terms of specific energy consumption (SEC) and specific water cost (SWC). The hybrid process can produce fresh water with SWC of 0.6964 $/m3, electrical SEC of 2.71 kWh/m3, and thermal SEC of 14.684 kWh/m3. Compared to the conventional SWRO process (SWC of 0.6890 $/m3 and electrical SEC of 2.674 kWh/m3), the hybrid process can produce water with comparable cost and energy consumption. An economic feasibility study that utilized the waste heat and the developed FO technology was also carried out to investigate future developments of the hybrid process. The SWC can be reduced to 0.6435 $/m3 with free waste heat energy. The permeate water quality of the hybrid process was about half that of the conventional SWRO process on molar basis. The results revealed that the FO/crystallization/RO hybrid process can be utilized as a competitive process for seawater desalination with high recovery and high water quality.
Collapse
Affiliation(s)
- Kiho Park
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, Republic of Korea
| | - Do Yeon Kim
- Department of Chemical and Biological Engineering, Korea University, Seoul, Republic of Korea
| | - Yoon Hyuk Jang
- Department of Chemical and Biological Engineering, Korea University, Seoul, Republic of Korea
| | - Min-Gyu Kim
- Department of Chemical and Biological Engineering, Korea University, Seoul, Republic of Korea
| | - Dae Ryook Yang
- Department of Chemical and Biological Engineering, Korea University, Seoul, Republic of Korea.
| | - Seungkwan Hong
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, Republic of Korea.
| |
Collapse
|
20
|
Interfacial polymerization of thin-film composite forward osmosis membranes using ionic liquids as organic reagent phase. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.117869] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
21
|
Xu X, Zhang H, Yu M, Wang Y, Gao T, Yang F. Conductive thin film nanocomposite forward osmosis membrane (TFN-FO) blended with carbon nanoparticles for membrane fouling control. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 697:134050. [PMID: 32380598 DOI: 10.1016/j.scitotenv.2019.134050] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 06/23/2019] [Accepted: 08/21/2019] [Indexed: 05/28/2023]
Abstract
Membrane fouling in forward osmosis (FO) significantly affects water flux and membrane life, which restricts the further development of FO. In this work, carbon nanoparticles were blended in polyethersulfone (PES) to prepare a conductive thin film nanocomposite (TFN) FO membrane to control the membrane fouling in FO processes. The membrane containing 4 wt% carbon exhibited an optimum performance with water flux of 14.0 and 17.2 LMH for FO (active layer for FS) and PRO (active layer for DS) modes, respectively, using DI water as feed solution and 1 M NaCl as draw solution and electrical conductivity of 170.1 mS/m. Dynamic antifouling experiments showed that, compared with no voltage applied, the water flux decline of surface charged TFN-FO membrane was significantly retarded. For CaSO4, BSA and LYS as model contaminants, the water fluxes were improved by 31%, 13% and 7% under the voltages of +1.7 V, -1.7 V and +1.7 V, respectively. Moreover, the charged membrane is more effective in relieving the initial membrane fouling, and contaminant-contaminant interactions mechanism dominates the formation of further membrane fouling processes. Therefore, for contaminants with different charge conditions, customizing membrane surface charges is a feasible and promising approach for controlling membrane fouling in situ method.
Collapse
Affiliation(s)
- Xiaotong Xu
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, No.2 Linggong Road, Dalian 116024, China
| | - Hanmin Zhang
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, No.2 Linggong Road, Dalian 116024, China.
| | - Mingchuan Yu
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, No.2 Linggong Road, Dalian 116024, China
| | - Yuezhu Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, No.2 Linggong Road, Dalian 116024, China
| | - Tianyu Gao
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, No.2 Linggong Road, Dalian 116024, China
| | - Fenglin Yang
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, No.2 Linggong Road, Dalian 116024, China
| |
Collapse
|
22
|
Xu Y, Tognia M, Guo D, Shen L, Li R, Lin H. Facile preparation of polyacrylonitrile-co-methylacrylate based integrally skinned asymmetric nanofiltration membranes for sustainable molecular separation: An one-step method. J Colloid Interface Sci 2019; 546:251-261. [DOI: 10.1016/j.jcis.2019.03.067] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 03/20/2019] [Accepted: 03/21/2019] [Indexed: 12/23/2022]
|