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Ragab S, El Sikaily A, El Nemr A. Fabrication of dialysis membrane from cotton Giza 86 cellulose di-acetate prepared using Ac 2O and NiCl 2 as a new catalyst. Sci Rep 2023; 13:2276. [PMID: 36755140 PMCID: PMC9908872 DOI: 10.1038/s41598-023-29528-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 02/06/2023] [Indexed: 02/10/2023] Open
Abstract
This attempt has been made to synthesize the cellulose di-acetate in a solvent-free acetylation system of cotton Giza 86 cellulose with Ac2O (200 and 300 ml) in the presence of NiCl2.6HO (1.0, 1.5 and 2.0 g) as an effectively available and new catalyst by the conventional reflux and microwave irradiation methods. This study also illustrates the preparation of a dialysis membrane made from a cellulose di-acetate-dichloromethane-methanol-polyethylene glycol (MW: 200) casting solution. The microwave irradiation method for the synthesis of cellulose di-acetate showed excellent yields and short reaction time, which is an important feature of this method. The impact of the two methods on the cellulose di-acetate formation and its used in the dialysis membrane formulations was studied. The experimental degree of substitution of the prepared cellulose di-acetate values (DS = 2.00-2.7) showed an agreement with the calculated values by FTIR and 1H-NMR analysis methods. The formation of cellulose di-acetate with percentage yields varied from 62.85 to 89.85%. The applicability of the prepared membrane in dialysis operation was evaluated in terms of urea clearance, rejection of Bovine Serum Albumin (BSA) and flux of pure water. Characterization of cellulose di-acetate was achieved through 1H-NMR, FTIR, TGA, and BET analyses. The CA-PEG blend membrane was examined by contact angle measurement, porosity, and water uptake of the membrane. The cellulose acetate membrane surface morphology was determined using SEM. It is observable that the fabricated CA-PEG blend membrane from synthesized cellulose di-acetate by using Nickel chloride as a catalyst is showing remarkable rejection of BSA and urea clearance up to 100 and 67.2%, respectively. The present work is promising and applicable in dialysis membranes.
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Affiliation(s)
- Safaa Ragab
- grid.419615.e0000 0004 0404 7762Environment Division, National Institute of Oceanography and Fisheries (NIOF), Kayet Bey, Elanfoushy, Alexandria, Egypt
| | - Amany El Sikaily
- grid.419615.e0000 0004 0404 7762Environment Division, National Institute of Oceanography and Fisheries (NIOF), Kayet Bey, Elanfoushy, Alexandria, Egypt
| | - Ahmed El Nemr
- Environment Division, National Institute of Oceanography and Fisheries (NIOF), Kayet Bey, Elanfoushy, Alexandria, Egypt.
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Rudolph-Schöpping G, Schagerlöf H, Jönsson AS, Lipnizki F. Comparison of membrane fouling during ultrafiltration with adsorption studied by Quartz crystal microbalance with dissipation monitoring (QCM-D). J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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3
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Chakachaka V, Tshangana C, Mahlangu O, Mamba B, Muleja A. Interdependence of Kinetics and Fluid Dynamics in the Design of Photocatalytic Membrane Reactors. MEMBRANES 2022; 12:membranes12080745. [PMID: 36005662 PMCID: PMC9412706 DOI: 10.3390/membranes12080745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 06/11/2022] [Accepted: 06/15/2022] [Indexed: 01/18/2023]
Abstract
Photocatalytic membrane reactors (PMRs) are a promising technology for wastewater reclamation. The principles of PMRs are based on photocatalytic degradation and membrane rejection, the different processes occurring simultaneously. Coupled photocatalysis and membrane filtration has made PMRs suitable for application in the removal of emerging contaminants (ECs), such as diclofenac, carbamazepine, ibuprofen, lincomycin, diphenhydramine, rhodamine, and tamoxifen, from wastewater, while reducing the likelihood of byproducts being present in the permeate stream. The viability of PMRs depends on the hypotheses used during design and the kinetic properties of the systems. The choice of design models and the assumptions made in their application can have an impact on reactor design outcomes. A design’s resilience is due to the development of a mathematical model that links material and mass balances to various sub-models, including the fluid dynamic model, the radiation emission model, the radiation absorption model, and the kinetic model. Hence, this review addresses the discrepancies with traditional kinetic models, fluid flow dynamics, and radiation emission and absorption, all of which have an impact on upscaling and reactor design. Computational and analytical descriptions of how to develop a PMR system with high throughput, performance, and energy efficiency are provided. The potential solutions are classified according to the catalyst, fluid dynamics, thickness, geometry, and light source used. Two main PMR types are comprehensively described, and a discussion of various influential factors relating to PMRs was used as a premise for developing an ideal reactor. The aim of this work was to resolve potential divergences that occur during PMRs design as most real reactors do not conform to the idealized fluid dynamics. Lastly, the application of PMRs is evaluated, not only in relation to the removal of endocrine-disrupting compounds (EDCs) from wastewater, but also in dye, oil, heavy metals, and pesticide removal.
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Cacao Pod Husk Extract Phenolic Nanopowder-Impregnated Cellulose Acetate Matrix for Biofouling Control in Membranes. MEMBRANES 2021; 11:membranes11100748. [PMID: 34677514 PMCID: PMC8538598 DOI: 10.3390/membranes11100748] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 09/22/2021] [Accepted: 09/27/2021] [Indexed: 11/17/2022]
Abstract
The ultrafiltration membrane process is widely used for fruit juice clarification, yet the occurring of fouling promotes a decline in process efficiency. To reduce the fouling potential in the membrane application in food processing, the use of natural phenolic compounds extracted from cocoa pod husk is investigated. The cocoa pod husk extract (CPHE) was prepared in phenolic nanoparticles form and added into the polymer solution at varying concentrations of 0.5 wt%, 0.75 wt%, and 1.0 wt%, respectively. The composite membrane was made of a cellulose acetate polymer using DMF (dimethylformamide) and DMAc (dimethylacetamide) solvents. The highest permeability of 2.34 L m−2 h−1 bar−1 was achieved by 1.0 wt% CPHE/CA prepared with the DMAc solvent. CPHE was found to reduce the amount of Escherichia coli attached to the membranes by 90.5% and 70.8% for membranes prepared with DMF and DMAc, respectively. It is concluded that CPHE can be used to control biofouling in the membrane for food applications.
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Krishna B A, Lindhoud S, de Vos WM. Hot-pressed polyelectrolyte complexes as novel alkaline stable monovalent-ion selective anion exchange membranes. J Colloid Interface Sci 2021; 593:11-20. [DOI: 10.1016/j.jcis.2021.02.077] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/12/2021] [Accepted: 02/16/2021] [Indexed: 12/17/2022]
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6
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Kim K, Park J, Jung JH, Lee R, Park JH, Yuk JM, Hwang H, Yeon JH. Cyclic tangential flow filtration system for isolation of extracellular vesicles. APL Bioeng 2021; 5:016103. [PMID: 33688618 PMCID: PMC7932758 DOI: 10.1063/5.0037768] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/27/2021] [Indexed: 02/07/2023] Open
Abstract
Size-based filtration techniques have been developed for high-throughput isolation of extracellular vesicles (EVs). Conventional direct filtration systems have limitations in that large particles generally not only block the pores of the membrane but also damage the particles because of the high fluid pressure. Here, we propose a cyclic tangential flow filtration (TFF) system that includes two membranes with pore sizes of 200 and 30 nm, connected to a peristaltic pump that feeds the stream flowing to the membrane for continuous circulation. The cyclic TFF system is better able to isolate the specific 30–200 nm size range in one step through dual cyclic filtration compared with direct filtration (DF) and single cyclic TFF (scTFF). We further introduced a buffer-exchange process to the dcTFF system after filtration to remove contaminants for more efficient purification. As a result of comparative evaluation of dcTFF and ExoQuick, EVs isolated by dcTFF had more abundant exosome markers and active EVs. The cyclic TFF system not only has great potential to separate EVs with high selectivity and separation efficiency in small volumes of samples but can also be used in clinical applications, including medical diagnostic procedures.
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Affiliation(s)
- Kimin Kim
- Department of Integrative Biosciences, University of Brain Education, Cheonan 31228, Republic of Korea
| | - Jungjae Park
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34051, Republic of Korea
| | - Jik-Han Jung
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34051, Republic of Korea
| | - Ruri Lee
- BBB Inc., Seoul 05637, Republic of Korea
| | - Ji-Ho Park
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34051, Republic of Korea
| | - Jong Min Yuk
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34051, Republic of Korea
| | | | - Ju Hun Yeon
- Department of Integrative Biosciences, University of Brain Education, Cheonan 31228, Republic of Korea
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7
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Van Gestel T, Sebold D. Hydrothermally stable mesoporous ZrO2 membranes prepared by a facile nanoparticle deposition process. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.03.066] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Liu R, Zhang Q, Lin Z, Lv R, Gao R, Soyekwo F, Zhu A, Liu Q. A Versatile Approach Towards the Fast Fabrication of Highly-Permeable Polymer Mesoporous Membranes. ChemistrySelect 2016. [DOI: 10.1002/slct.201600256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rongrong Liu
- Department of Chemical & Biochemical Engineering, College of Chemistry & Chemical Engineering; Xiamen University; 422 Siming South Road Xiamen 361005 China
| | - Qiugen Zhang
- Department of Chemical & Biochemical Engineering, College of Chemistry & Chemical Engineering; Xiamen University; 422 Siming South Road Xiamen 361005 China
| | - Zhen Lin
- Department of Chemical & Biochemical Engineering, College of Chemistry & Chemical Engineering; Xiamen University; 422 Siming South Road Xiamen 361005 China
| | - Ruixue Lv
- Department of Chemical & Biochemical Engineering, College of Chemistry & Chemical Engineering; Xiamen University; 422 Siming South Road Xiamen 361005 China
| | - Runsheng Gao
- Department of Chemical & Biochemical Engineering, College of Chemistry & Chemical Engineering; Xiamen University; 422 Siming South Road Xiamen 361005 China
| | - Faizal Soyekwo
- Department of Chemical & Biochemical Engineering, College of Chemistry & Chemical Engineering; Xiamen University; 422 Siming South Road Xiamen 361005 China
| | - Aimei Zhu
- Department of Chemical & Biochemical Engineering, College of Chemistry & Chemical Engineering; Xiamen University; 422 Siming South Road Xiamen 361005 China
| | - Qinglin Liu
- Department of Chemical & Biochemical Engineering, College of Chemistry & Chemical Engineering; Xiamen University; 422 Siming South Road Xiamen 361005 China
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9
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Lousada-Ferreira M, van Lier J, van der Graaf J. Particle counting as surrogate measurement of membrane integrity loss and assessment tool for particle growth and regrowth in the permeate of membrane bioreactors. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2016.01.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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10
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Nurra C, Pitol-Filho L, Carraud R, Pertuz S, Puig D, García MA, Salvadó J, Torras C. Toward the prediction of porous membrane permeability from morphological data. POLYM ENG SCI 2016. [DOI: 10.1002/pen.24198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Claudia Nurra
- Bioenergy and Biofuels Division; Catalonia Institute for Energy Research; IREC. C/Marcel·lí Domingo, 2 Tarragona Catalunya 43007 Spain
- Department of Chemical Engineering; Universitat Rovira i Virgili; Av. Països Catalans, 26 Tarragona Catalunya 43007 Spain
| | - Luizildo Pitol-Filho
- Centro de Ciências Tecnológicas da Terra e do Mar, Universidade do Vale do Itajaí; Rua Uruguai 458 88302-901 Itajaí (SC) Brazil
| | - Raphaelle Carraud
- Bioenergy and Biofuels Division; Catalonia Institute for Energy Research; IREC. C/Marcel·lí Domingo, 2 Tarragona Catalunya 43007 Spain
| | - Said Pertuz
- Intelligent Robotics and Computer Vision Group; Department Of Computer Science and Mathematics; Universitat Rovira i Virgili; Av. Països Catalans, 26 Tarragona Catalunya 43007 Spain
| | - Domènec Puig
- Intelligent Robotics and Computer Vision Group; Department Of Computer Science and Mathematics; Universitat Rovira i Virgili; Av. Països Catalans, 26 Tarragona Catalunya 43007 Spain
| | - Miguel A. García
- Department of Electronic and Communications Technology; Universidad Autónoma De Madrid; Francisco Tomas Y Valiente, 11 Madrid Spain
| | - Joan Salvadó
- Bioenergy and Biofuels Division; Catalonia Institute for Energy Research; IREC. C/Marcel·lí Domingo, 2 Tarragona Catalunya 43007 Spain
- Department of Chemical Engineering; Universitat Rovira i Virgili; Av. Països Catalans, 26 Tarragona Catalunya 43007 Spain
| | - Carles Torras
- Bioenergy and Biofuels Division; Catalonia Institute for Energy Research; IREC. C/Marcel·lí Domingo, 2 Tarragona Catalunya 43007 Spain
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11
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Suwal S, Doyen A, Bazinet L. Characterization of protein, peptide and amino acid fouling on ion-exchange and filtration membranes: Review of current and recently developed methods. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2015.08.056] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Rathi A, Edison JR, Ford DM, Monson PA. Modeling permporometry of mesoporous membranes using dynamic mean field theory. AIChE J 2015. [DOI: 10.1002/aic.14846] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ashutosh Rathi
- Dept. of Chemical Engineering; University of Massachusetts; Amherst MA 01003-9303
| | - John R. Edison
- Dept. of Chemical Engineering; University of Massachusetts; Amherst MA 01003-9303
| | - David M. Ford
- Dept. of Chemical Engineering; University of Massachusetts; Amherst MA 01003-9303
| | - Peter A. Monson
- Dept. of Chemical Engineering; University of Massachusetts; Amherst MA 01003-9303
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13
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Ellouze F, Amar NB, Deratani A. Étude comparative de deux méthodes de caractérisation de membranes d’ultrafiltration et de nanofiltration : la porométrie bi-liquide et le transport de solutés neutres. CR CHIM 2015. [DOI: 10.1016/j.crci.2014.10.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Guo NN, Zhang QG, Li HM, Wu XM, Liu QL, Zhu AM. Facile Fabrication, Structure, and Applications of Polyvinyl Chloride Mesoporous Membranes. Ind Eng Chem Res 2014. [DOI: 10.1021/ie503986h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nan Nan Guo
- Department of Chemical & Biochemical Engineering, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Qiu Gen Zhang
- Department of Chemical & Biochemical Engineering, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Hong Mei Li
- Department of Chemical & Biochemical Engineering, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin Mei Wu
- Department of Chemical & Biochemical Engineering, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Qing Lin Liu
- Department of Chemical & Biochemical Engineering, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ai Mei Zhu
- Department of Chemical & Biochemical Engineering, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China
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15
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Marchetti P, Jimenez Solomon MF, Szekely G, Livingston AG. Molecular separation with organic solvent nanofiltration: a critical review. Chem Rev 2014; 114:10735-806. [PMID: 25333504 DOI: 10.1021/cr500006j] [Citation(s) in RCA: 819] [Impact Index Per Article: 81.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Patrizia Marchetti
- Department of Chemical Engineering and Chemical Technology, Imperial College London , Exhibition Road, London SW7 2AZ, United Kingdom
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16
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Abdelrasoul A, Doan H, Lohi A, Cheng CH. Modelling development for ultrafiltration membrane fouling of heterogeneous membranes with non-uniform pore size. CAN J CHEM ENG 2014. [DOI: 10.1002/cjce.22056] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Amira Abdelrasoul
- Department of Chemical Engineering; Ryerson University; 350 Victoria Street Toronto ON M5B 2K3
| | - Huu Doan
- Department of Chemical Engineering; Ryerson University; 350 Victoria Street Toronto ON M5B 2K3
| | - Ali Lohi
- Department of Chemical Engineering; Ryerson University; 350 Victoria Street Toronto ON M5B 2K3
| | - Chil-Hung Cheng
- Department of Chemical Engineering; Ryerson University; 350 Victoria Street Toronto ON M5B 2K3
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17
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Regula C, Carretier E, Wyart Y, Gésan-Guiziou G, Vincent A, Boudot D, Moulin P. Chemical cleaning/disinfection and ageing of organic UF membranes: a review. WATER RESEARCH 2014; 56:325-365. [PMID: 24704985 DOI: 10.1016/j.watres.2014.02.050] [Citation(s) in RCA: 141] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 02/24/2014] [Accepted: 02/26/2014] [Indexed: 06/03/2023]
Abstract
Membrane separation processes have become a basic unit operation for process design and product development. These processes are used in a variety of separation and concentration steps, but in all cases, the membranes must be cleaned regularly to remove both organic and inorganic material deposited on the surface and/or into the membrane bulk. Cleaning/disinfection is a vital step in maintaining the permeability and selectivity of the membrane in order to get the plant to its original capacity, to minimize risks of bacteriological contamination, and to make acceptable products. For this purpose, a large number of chemical cleaning/disinfection agents are commercially available. In general, these cleaning/disinfection agents have to improve the membrane flux to a certain extent. However, they can also cause irreversible damages in membrane properties and performances over the long term. Until now, there is considerably less literature dedicated to membrane ageing than to cleaning/disinfection. The knowledge in cleaning/disinfection efficiency has recently been improved. But in order to develop optimized cleaning/disinfection protocols there still remains a challenge to better understand membrane ageing. In order to compensate for the lack of correlated cleaning/disinfection and ageing data from the literature, this paper investigates cleaning/disinfection efficiencies and ageing damages of organic ultrafiltration membranes. The final aim is to provide less detrimental cleaning/disinfection procedures and to propose some guidelines which should have been taken into consideration in term of membrane ageing studies. To carry out this study, this article will detail the background of cleaning/disinfection and aging membrane topics in a first introductive part. In a second part, key factors and endpoints of cleaning/disinfection and aging membranes will be discussed deeply: the membrane role and the cleaning parameters roles, such as water quality, storing conditions, cleaning/disinfection/aging agents/conditions/protocols. The third and last part will be developed the parameters, methods and ways of characterization at our disposal and commonly used to develop and implement membrane cleaning and/or ageing studies.
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Affiliation(s)
- C Regula
- Aix Marseille Université, CNRS, Centrale Marseille, M2P2 UMR 7340, Equipe Procédés Membranaires (EPM), Europôle de l'Arbois, BP80, Pavillon Laennec, Hall C, 13545 Aix en Provence Cedex 04, France; ECOLAB, 8 rue Rouget de Lisle, 92442 Issy les Moulineaux Cedex, France
| | - E Carretier
- Aix Marseille Université, CNRS, Centrale Marseille, M2P2 UMR 7340, Equipe Procédés Membranaires (EPM), Europôle de l'Arbois, BP80, Pavillon Laennec, Hall C, 13545 Aix en Provence Cedex 04, France
| | - Y Wyart
- Aix Marseille Université, CNRS, Centrale Marseille, M2P2 UMR 7340, Equipe Procédés Membranaires (EPM), Europôle de l'Arbois, BP80, Pavillon Laennec, Hall C, 13545 Aix en Provence Cedex 04, France
| | - G Gésan-Guiziou
- INRA, UMR1253 Science et Technologie du Lait et de l'Œuf, 35000 Rennes, France; AGROCAMPUS OUEST, UMR1253 Science et Technologie du Lait et de l'Œuf, 35000 Rennes, France
| | - A Vincent
- ECOLAB, 8 rue Rouget de Lisle, 92442 Issy les Moulineaux Cedex, France
| | - D Boudot
- ECOLAB, 8 rue Rouget de Lisle, 92442 Issy les Moulineaux Cedex, France
| | - P Moulin
- Aix Marseille Université, CNRS, Centrale Marseille, M2P2 UMR 7340, Equipe Procédés Membranaires (EPM), Europôle de l'Arbois, BP80, Pavillon Laennec, Hall C, 13545 Aix en Provence Cedex 04, France.
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18
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Li Y, Zhang H, Zhang H, Cao J, Xu W, Li X. Hydrophilic porous poly(sulfone) membranes modified by UV-initiated polymerization for vanadium flow battery application. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2013.12.015] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Soyekwo F, Zhang QG, Deng C, Gong Y, Zhu AM, Liu QL. Highly permeable cellulose acetate nanofibrous composite membranes by freeze-extraction. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2013.12.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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20
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Li Y, Li X, Cao J, Xu W, Zhang H. Composite porous membranes with an ultrathin selective layer for vanadium flow batteries. Chem Commun (Camb) 2014; 50:4596-9. [DOI: 10.1039/c3cc49729a] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work provides a simple method to fabricate composite membranes, combing excellent performance and low cost for VFB application.
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Affiliation(s)
- Yun Li
- Division of Energy Storage
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023, China
- University of Chinese Academy of Sciences
| | - Xianfeng Li
- Division of Energy Storage
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023, China
| | - Jingyu Cao
- Division of Energy Storage
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023, China
- University of Chinese Academy of Sciences
| | - Wanxing Xu
- Division of Energy Storage
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023, China
- University of Chinese Academy of Sciences
| | - Huamin Zhang
- Division of Energy Storage
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023, China
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21
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Deng C, Zhang QG, Han GL, Gong Y, Zhu AM, Liu QL. Ultrathin self-assembled anionic polymer membranes for superfast size-selective separation. NANOSCALE 2013; 5:11028-11034. [PMID: 24072040 DOI: 10.1039/c3nr03362g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Nanoporous membranes with superior separation performance have become more crucial with increasing concerns in functional nanomaterials. Here novel ultrahigh permeable nanoporous membranes have been fabricated on macroporous supports by self-assembly of anionic polymer on copper hydroxide nanostrand templates in organic solution. This facile approach has a great potential for the fabrication of ultrathin anionic polymer membranes as a general method. The as-fabricated self-assembled membranes have a mean pore size of 5-12 nm and an adjustable thickness as low as 85 nm. They allow superfast permeation of water, and exhibit excellent size-selective separation properties and good fouling resistance for negatively-charged solutes during filtration. The 85 nm thick membrane has an ultrahigh water flux (3306 l m(-2) h(-1) bar(-1)) that is an order of magnitude larger than commercial membranes, and can highly efficiently separate 5 and 15 nm gold nanoparticles from their mixtures. The newly developed nanoporous membranes have a wide application in separation and purification of biomacromolecules and nanoparticles.
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Affiliation(s)
- Chao Deng
- Department of Chemical & Biochemical Engineering, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China.
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22
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Shrestha A, Pellegrino J, Husson SM, Wickramasinghe SR. A modified porometry approach towards characterization of MF membranes. J Memb Sci 2012. [DOI: 10.1016/j.memsci.2012.07.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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23
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Woods J, Pellegrino J, Burch J. Generalized guidance for considering pore-size distribution in membrane distillation. J Memb Sci 2011. [DOI: 10.1016/j.memsci.2010.11.041] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Llanos J, Williams PM, Cheng S, Rogers D, Wright C, Pérez A, Cañizares P. Characterization of a ceramic ultrafiltration membrane in different operational states after its use in a heavy-metal ion removal process. WATER RESEARCH 2010; 44:3522-3530. [PMID: 20451946 DOI: 10.1016/j.watres.2010.03.036] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Revised: 03/26/2010] [Accepted: 03/29/2010] [Indexed: 05/29/2023]
Abstract
In the present study, the atomic force microscopy (AFM) technique has been used to characterize a Carbosep M5 ceramic membrane (MWCO=10kDa, TiO(2)-ZrO(2) active layer). This membrane was previously used in a polymer supported ultrafiltration (PSU) process to recover copper, using partially ethoxylated polyethylenimine as the water-soluble polymer. The membrane was characterized in four different operational states: new, new and cleaned, fouled in a PSU stage and cleaned after a PSU process. The influence of the membrane state on pore opening size distribution and roughness was studied, finding a 16% decrease in the former and a 20% increase in the latter due to foulant deposition upon the membrane active layer. Phase angle distribution was also analyzed to indicate the foulant spreading on the membrane surface. These phase angle measurements can be related to pore opening size and roughness, concluding that the cleaning procedure is not totally effective and that foulant presence on the membrane active layer is not remarkable. Finally, AFM was used to measure the influence of pH on adhesion forces between a silica probe and the membrane active layer. These results can be related to the flux evolution vs pH in PSU experiments, finding both lowest adhesion and highest flux at pH 6.
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Affiliation(s)
- J Llanos
- Chemical Engineering Department, Faculty of Chemical Sciences, University of Castilla-La Mancha. Edificio Enrique Costa Novella, Avda. Camilo José Cela 12, 13071 Ciudad Real, Spain.
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