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Zhang J, Yang Y, Sun Z, Zhao D, Gao Y, Shen T, Li Y, Xie Z, Huo Y, Li H. Ag@BiOBr/PVDF photocatalytic membrane for remarkable BSA anti-fouling performance and insight of mechanism. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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2
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Sánchez-Arévalo CM, Pérez García-Serrano A, Vincent-Vela MC, Álvarez-Blanco S. Combining Ultrafiltration and Nanofiltration to Obtain a Concentrated Extract of Purified Polyphenols from Wet Olive Pomace. MEMBRANES 2023; 13:119. [PMID: 36837622 PMCID: PMC9968206 DOI: 10.3390/membranes13020119] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/09/2023] [Accepted: 01/12/2023] [Indexed: 06/18/2023]
Abstract
Despite the environmental concerns raised every year by the generation of high volumes of wet olive pomace, it contains valuable phenolic compounds that are essential for the valorization of this by-product. In this work, an integrated process to recover phenolic compounds from wet olive pomace is proposed. It consists of ultrasound-assisted solid-liquid extraction, followed by ultrafiltration and nanofiltration. Several commercial membranes were studied at different operational conditions. The ultrafiltration stage allowed the purification of biophenols, which were obtained in the permeate stream. Regarding organic matter, satisfactory rejection values were obtained with both commercial UH030 and UP005 membranes (Microdyn Nadir), but the latter provided more efficient purification and higher values of permeate flux, above 18 L·h-1·m-2 at 2.5 bar and 1.5 m·s-1. Later, this permeate stream was concentrated by means of a nanofiltration process, obtaining polyphenol rejection values that surpassed 85% with the commercial NF270 membrane (DuPont), then achieving the concentration of the previously purified polyphenols.
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Affiliation(s)
- Carmen M. Sánchez-Arévalo
- Research Institute for Industrial, Radiophysical and Environmental Safety (ISIRYM), Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, Spain
| | - Ane Pérez García-Serrano
- Research Institute for Industrial, Radiophysical and Environmental Safety (ISIRYM), Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, Spain
| | - María Cinta Vincent-Vela
- Research Institute for Industrial, Radiophysical and Environmental Safety (ISIRYM), Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, Spain
- Department of Chemical and Nuclear Engineering, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Silvia Álvarez-Blanco
- Research Institute for Industrial, Radiophysical and Environmental Safety (ISIRYM), Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, Spain
- Department of Chemical and Nuclear Engineering, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
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Interplay of organic components in membrane fouling evolution: Statistical evidence from multiple spectroscopic analyses. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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4
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Recovery of nisin from culture supernatants of Lactococcus lactis by ultrafiltration: Flux properties and separation efficiency. FOOD AND BIOPRODUCTS PROCESSING 2022. [DOI: 10.1016/j.fbp.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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5
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Biorefinery of Tomato Leaves by Integrated Extraction and Membrane Processes to Obtain Fractions That Enhance Induced Resistance against Pseudomonas syringae Infection. MEMBRANES 2022; 12:membranes12060585. [PMID: 35736292 PMCID: PMC9229720 DOI: 10.3390/membranes12060585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 05/27/2022] [Accepted: 05/30/2022] [Indexed: 02/04/2023]
Abstract
Tomato leaves have been shown to contain significant amounts of important metabolites involved in protection against abiotic and biotic stress and/or possessing important therapeutic properties. In this work, a systematic study was carried out to evaluate the potential of a sustainable process for the fractionation of major biomolecules from tomato leaves, by combining aqueous extraction and membrane processes. The extraction parameters (temperature, pH, and liquid/solid ratio (L/S)) were optimized to obtain high amounts of biomolecules (proteins, carbohydrates, biophenols). Subsequently, the aqueous extract was processed by membrane processes, using 30–50 kDa and 1–5 kDa membranes for the first and second stage, respectively. The permeate from the first stage, which was used to remove proteins from the aqueous extract, was further fractionated in the second stage, where the appropriate membrane material was also selected. Of all the membranes tested in the first stage, regenerated cellulose membranes (RC) showed the best performance in terms of higher rejection of proteins (85%) and lower fouling index (less than 15% compared to 80% of the other membranes tested), indicating that they are suitable for fractionation of proteins from biophenols and carbohydrates. In the second stage, the best results were obtained by using polyethersulfone (PES) membranes with an NMWCO of 5 kDa, since the greatest difference between the rejection coefficients of carbohydrates and phenolic compounds was obtained. In vivo bioactivity tests confirmed that fractions obtained with PES 5 kDa membranes were able to induce plant defense against P. syringae.
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Ayazi Z, Safarpour M, Ahmadi F. Monolithic polyethersulfone membrane modified with PVA and PVP as a novel extracting media for thin film microextraction of bisphenol A from aquatic samples. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Marson GV, Pereira DTV, da Costa Machado MT, Di Luccio M, Martínez J, Belleville MP, Hubinger MD. Ultrafiltration performance of spent brewer's yeast protein hydrolysate: Impact of pH and membrane material on fouling. J FOOD ENG 2021. [DOI: 10.1016/j.jfoodeng.2021.110569] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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8
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Chen Y, Mai Z, Fan S, Wang Y, Qiu B, Wang Y, Chen J, Xiao Z. Synergistic enhanced catalysis of micro-reactor with nano MnO2/ZIF-8 immobilized in membrane pores by flowing synthesis. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119233] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Wang L, Boussetta N, Lebovka N, Vorobiev E. Purification of polyphenols from apple skins by membrane electro-filtration. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Ashok Kumar S, Moncarmel Johanna N, Beula Jenefer V, Srinivasan G, Kanimozhi G, Yuvarani G, Ridhamsha G, Prabu K, Govindaradjane S, Jayaraman S. Influence of monomers involved in the fabrication of a novel PES based nanofiltration thin-film composite membrane and its performance in the treatment of common effluent (CETP) textile industrial wastewater. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2021; 19:515-529. [PMID: 34150255 PMCID: PMC8172651 DOI: 10.1007/s40201-021-00624-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 02/02/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE In this article, monomers (tannic acid (TA) and m- phenylenediamine (MPD)) were used in the fabrication of a novel PES based thin-film composite nanofiltration (TFC-NF) membrane for the treatment of a common effluent treatment plant (CETP) of textile industrial wastewater. MEMBRANE SYNTHESIS PES support sheets and TFC layers were fabricated via non-solvent induced phase inversion and in-situ interfacial polymerization (IP) process. The ultra-thin active layer was synthesized via the IP process with monomers such as tannic acid (TA) and m- phenylenediamine (MPD). T and M series membranes correspond to (PES/x wt% TA, x = 2, 4, 6) as T1, T2, T3 -TA and (PES/x wt% MPD, x = 2, 4, 6) as M1, M2, M3-MPD respectively. M0 corresponds to PES which is the virgin membrane. RESULTS The chemical structure, surface morphology, surface roughness and surface properties were explored using fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM) and contact angle, respectively. The filtration performance of the thin-film composite nanofiltration (TFC-NF) membranes was investigated by various properties like pure water flux, salt rejection, porosity, mean pore radius and antifouling analysis. CONCLUSION T1-TA membrane showed better water permeability, high salt rejection and better industrial effluent rejection with 94.4% of TDS that are suitable for industrial reuse and agricultural irrigation. Moreover, for T1-TA membrane, the water flux, porosity, mean pore radius, salt rejection, surface roughness and contact angle of 43.5lm- 2 h - 1, 47.1%, 16.7nm, 72.7%, 11.7nm and 41.48°was achieved respectively that was found to be higher than that of all the other fabricated membranes. Further, the rejection efficiency rate of textile effluent characteristics such as pH, turbidity, TDS, alkalinity, total hardness, BOD and COD were also achieved with maximum deduction in the T1-TA TFC-NF membrane compared to the M0-Virgin PES membrane. From the results, it can be confirmed that the T1-TA membrane significantly reduced the alkalinity, total hardness, BOD and COD rejections of 78%, 77.3%, 58.5% and 67.5% respectively, present in the effluent. Water flux recovery ratio (FRR) was improved from 74.6% for M0-Virgin PES membrane to 94.8% for T1-TA membrane. The modified TFC-NF membranes especially T1-TA, had better anti-fouling property and excellent hydrophilicity than the unmodified M0-Virgin PES membrane. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s40201-021-00624-x.
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Affiliation(s)
- S. Ashok Kumar
- Department of Chemical Engineering, Pondicherry Engineering College, Pondicherry, India
| | - N. Moncarmel Johanna
- Department of Chemical Engineering, Pondicherry Engineering College, Pondicherry, India
| | - V. Beula Jenefer
- Department of Chemical Engineering, Pondicherry Engineering College, Pondicherry, India
| | - G. Srinivasan
- Department of Chemical Engineering, Pondicherry Engineering College, Pondicherry, India
| | - G. Kanimozhi
- Department of Physics, Pondicherry University, Pondicherry, India
| | - G. Yuvarani
- Department of Chemical Engineering, Pondicherry Engineering College, Pondicherry, India
| | - G. Ridhamsha
- Department of Chemical Engineering, Pondicherry Engineering College, Pondicherry, India
| | - K. Prabu
- Department of Chemical Engineering, Pondicherry Engineering College, Pondicherry, India
| | - S. Govindaradjane
- Department of Civil Engineering, Pondicherry Engineering College, Pillaichavady, Puducherry, India
| | - Sundaramurthy Jayaraman
- Environmental & Water Technology Centre of Innovation, Ngee Ann Polytechnic, 599489 Singapore, Singapore
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11
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Bretanha CC, Zin G, Oliveira JV, Di Luccio M. Improvement of tangential microfiltration of gelatin solution using a permanent magnetic field. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2021; 58:1093-1100. [PMID: 33678892 PMCID: PMC7884502 DOI: 10.1007/s13197-020-04623-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 06/18/2020] [Accepted: 07/03/2020] [Indexed: 06/12/2023]
Abstract
Membrane technology is an interesting alternative to conventional gelatin clarification methods, resulting in the elimination of refining chemical agents. In this work, the application of a permanent magnetic field as a pre-treatment of the gelatin solutions was proposed as a strategy to improve the microfiltration (MF) performance. Filtration tests were performed using a 1.5% swine gelatin solution at 40 °C through cellulose acetate membranes in a tangential flow module. Prior to the filtrations, the feed solutions were pretreated by the circulation of the solution through magnetic fields with different flux densities, 0.7 T and 1.34 T, for 2 h. The magnetic induction of the solution significantly increased the permeate flux and the recovery of hydraulic permeance by 63% and 122%, respectively, showing the application of the magnetic field in the solution of gelatin is an attractive alternative to improve the performance of the process.
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Affiliation(s)
- Cristiana C. Bretanha
- Laboratory of Membrane Processes, LABSEM, Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, SC 88040-900 Brazil
| | - Guilherme Zin
- Laboratory of Membrane Processes, LABSEM, Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, SC 88040-900 Brazil
| | - J. Vladimir Oliveira
- Laboratory of Membrane Processes, LABSEM, Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, SC 88040-900 Brazil
| | - Marco Di Luccio
- Laboratory of Membrane Processes, LABSEM, Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, SC 88040-900 Brazil
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12
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Hui C, Huang H. A study on chitosan-coated liposomes as a carrier of bovine serum albumin as oral protein drug. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2020.1773849] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Chen Hui
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Huihua Huang
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
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Wang X, Wu C, Zhu T, Li P, Xia S. The hierarchical flower-like MoS 2 nanosheets incorporated into PES mixed matrix membranes for enhanced separation performance. CHEMOSPHERE 2020; 256:127099. [PMID: 32470733 DOI: 10.1016/j.chemosphere.2020.127099] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 05/12/2020] [Accepted: 05/15/2020] [Indexed: 06/11/2023]
Abstract
Membrane fouling is an issue of concern due to the hydrophobic properties of polyethersulfone (PES) membrane when applied in water treatment. In this work, a facile hydrothermal method was utilized to synthesize hierarchical flower-like structured molybdenum disulfide nanosheets (HF-MoS2 NSs) that then incorporated into PES membranes as composite membranes. We characterized their permeability, the separation performance, the antifouling performance, and the antibacterial activity systematically. Results showed that composite membranes exhibited a better pure water flux (286 LMH/bar) at the HF-MoS2 NSs content of 0.4 wt%, which was 1.8 times higher than the control membrane. Also, composite PES membranes achieved 98.2% and 96.9% rejection of BSA and HA in comparison with the control PES membrane (87.3%, and 84.5%, respectively). Compare to the control PES membrane, the flux recovery ratio of the composite membrane increased from 69% to 88% for BSA fouling and increased from 84% to 93% for HA fouling. The retention rate for the organic dyes also improved slightly after HF-MoS2 NSs incorporation into the membrane. Additionally, the composite membranes exhibited a relatively high antibacterial activity against E. coli and B. subtilis with antibacterial rates of 67.8% and 82.5%, respectively. In conclusion, HF-MoS2 NSs incorporated composite membranes were shown to have outstanding filtration performance and could be a promising candidate for practical application in water filtration.
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Affiliation(s)
- Xiaoping Wang
- State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai, 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Shanghai, China
| | - Chao Wu
- State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai, 200092, China
| | - Tongren Zhu
- Arcadis-US, Inc, 1717 West 6 Street #210, Austin, TX, 78703, USA
| | - Pan Li
- State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai, 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Shanghai, China
| | - Shengji Xia
- State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai, 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, China.
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14
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Xu L, Wei C, Siddique MS, Yu W. Insight into the effect of in-situ galvanic micro-coagulation on membrane fouling mitigation treating surface water. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118234] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Correlation of chemically irreversible fouling with organic constituents of feed water during membrane filtration. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124790] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Microfiltration of soy sauce: Efficiency, resistance and fouling mechanism at different operating stages. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116656] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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17
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Rouquié C, Liu S, Rabiller-Baudry M, Riaublanc A, Frappart M, Couallier E, Szymczyk A. Electrokinetic leakage as a tool to probe internal fouling in MF and UF membranes. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Guo H, Tang X, Ganschow G, Korshin GV. Differential ATR FTIR spectroscopy of membrane fouling: Contributions of the substrate/fouling films and correlations with transmembrane pressure. WATER RESEARCH 2019; 161:27-34. [PMID: 31170670 DOI: 10.1016/j.watres.2019.05.086] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 05/13/2019] [Accepted: 05/25/2019] [Indexed: 06/09/2023]
Abstract
This study examined the formation of fouling films deposited on the surface of a polyethersulfone (PES) membrane during the filtration of alginate solutions with various ionic strengths. Membrane fouling was characterized by changes of the transmembrane pressure (TMP) and ex situ measured attenuated total reflectance (ATR) Fourier-transform IR (FTIR) spectra at varying stages of filtration runs. The ATR spectra that comprise the vibration bands characteristic of the PES substrate and the deposited film were processed taking into the gradual weakening of the PES substrate-specific bands, whose intensity was shown to depend on the wavenumber of IR radiation and the thickness of the deposited layer. Strongly linear correlations between ratios of first derivatives intensity and wavenumbers of the PES reference lines were established. Calculations of the PES bands' attenuation coefficients allowed determining the apparent thickness and ATR FTIR vibrations of the fouling films per se. Strong correlations between TMP development and ATR-determined apparent thickness of the fouling layers were observed. The intensity of ATR absorbance at 3200 cm-1 was linearly correlated with TMP development for small TMP values before the point of rapidly developing failure of the hydraulic permeability of the system was reached.
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Affiliation(s)
- Hongguang Guo
- College of Architecture and Environment, Sichuan University, Chengdu, 610065, China; Department of Civil & Environmental Engineering, University of Washington, Box 352700, Seattle, WA, United States; Key Laboratory of Deep Earth Science and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China.
| | - Xinyu Tang
- Department of Civil & Environmental Engineering, University of Washington, Box 352700, Seattle, WA, United States
| | - Gilbert Ganschow
- Department of Civil & Environmental Engineering, University of Washington, Box 352700, Seattle, WA, United States
| | - Gregory V Korshin
- Department of Civil & Environmental Engineering, University of Washington, Box 352700, Seattle, WA, United States
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Kotlhao K, Lawal IA, Moutloali RM, Klink MJ. Antifouling Properties of Silver-Zinc Oxide Polyamide Thin Film Composite Membrane and Rejection of 2-Chlorophenol and 2,4-Dichlorophenol. MEMBRANES 2019; 9:E96. [PMID: 31387240 PMCID: PMC6723071 DOI: 10.3390/membranes9080096] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 07/09/2019] [Accepted: 07/12/2019] [Indexed: 01/31/2023]
Abstract
The silver-zinc oxide (Ag-ZnO) polyamide thin film composite (PA-TFC) membrane was prepared by interfacial polymerization. The Ag-ZnO/PA-TFC membrane was characterized by attenuated total reflectance fourier-transform infrared spectroscopy (ATR-FTIR) for polyamide functional groups and contact angle for surface hydrophilicity. The Ag-ZnO/PA-TFC membrane was further characterized by Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) for morphology and surface roughness, respectively. The performance of the fabricated membrane was investigated using pure water flux, permeability, rejection, flux recovery, and fouling resistance using low molecular weight organic pollutants, 2-chlorophenol (2-CP) and 2,4-dichlorophenol (2,4-DCP). The results were compared to the neat (PA-TFC) membrane. It was observed that incorporation of Ag-ZnO nanocomposites into the PA-TFC membrane improved hydrophilicity, permeation, rejection, and fouling resistance properties of the membrane. The contact angle decreased from 62.8° to 54° for PA-TFC and the Ag-ZnO/PA-TFC membrane, respectively. The presence of Ag-ZnO enhanced permeability of the membrane from 0.9 (Lm-2h-1bar-1) to 1.9 (Lm-2h-1bar-1). Modification of the membrane with Ag-ZnO further showed an enhanced rejection of 2-CP and 2,4-DCP from 43% to 80% and 58% to 85%, respectively. The 2,4-DCP molecules were rejected more than 2-CP due to enhanced repulsive forces from the extra Cl ion. A high flux recovery of about 95% was achieved for the modified membrane compared to 64% for the neat membrane. The improved flux recovery was an indication of enhanced antifouling propensity.
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Affiliation(s)
- Kate Kotlhao
- Faculty of Applied and Computer Sciences, Department of Chemistry, Vaal University of Technology, Private Bag X021, Vanderbijlpark 1900, South Africa
| | - Isiaka A Lawal
- Faculty of Applied and Computer Sciences, Department of Chemistry, Vaal University of Technology, Private Bag X021, Vanderbijlpark 1900, South Africa
| | - Richard M Moutloali
- Faculty of Science, Department of Applied Chemistry, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa
| | - Michael J Klink
- Faculty of Applied and Computer Sciences, Department of Chemistry, Vaal University of Technology, Private Bag X021, Vanderbijlpark 1900, South Africa.
- Faculty of Applied and Computer Sciences, Department of Biotechnology. Vaal University of Technology, Private Bag X021, Vanderbijlpark 1900, South Africa.
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20
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Silva FL, Zin G, Rezzadori K, Longo LC, Tiggemann L, Soares LS, Cunha Petrus JC, Vladimir de Oliveira J, Di Luccio M. Changes in the physico-chemical characteristics of a protein solution in the presence of magnetic field and the consequences on the ultrafiltration performance. J FOOD ENG 2019. [DOI: 10.1016/j.jfoodeng.2018.08.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Kovács I, Veréb G, Kertész S, Hodúr C, László Z. Fouling mitigation and cleanability of TiO 2 photocatalyst-modified PVDF membranes during ultrafiltration of model oily wastewater with different salt contents. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:34912-34921. [PMID: 29288296 DOI: 10.1007/s11356-017-0998-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 12/10/2017] [Indexed: 06/07/2023]
Abstract
In the present study, TiO2-coated ultrafiltration membranes were prepared and used for oily water filtration (droplet size < 2 μm). The aim of this work was to investigate the effect of different salt contents on fouling and filtration properties of neat and TiO2-coated membranes during oil-in-water emulsion filtration. The effect of the TiO2 coating on the flux, surface free energy, and retention values was measured and compared with the neat membrane values. The cleanability of the fouled TiO2-coated membranes by UV irradiation was also investigated by measuring flux recovery and contact angles, and the chemical changes during cleaning were characterized by ATR-IR. It was found that increasing the salt content of the model wastewaters, oil-in-water emulsions, increased the zeta potential and the size of the droplets. The presence of the TiO2 coating decreases the membrane fouling during oily emulsion filtration compared to the neat membrane, due to the hydrophilicity of the coating regardless of the salt content of the emulsions. The neat and coated membrane oil retention was similar, 96 ± 2%. The coated membrane can be effectively cleaned with UV irradiation without additional chemicals and a significant flux recovery can be achieved. Monitoring of the cleaning process by following the membrane surface wettability and ATR-IR measurements showed that the recovery of flux does not mean the total elimination of the oil layer from the membrane surface.
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Affiliation(s)
- Ildikó Kovács
- Department of Process Engineering, Faculty of Engineering, University of Szeged, Moszkvai krt. 9, Szeged, H-6725, Hungary
| | - Gábor Veréb
- Department of Process Engineering, Faculty of Engineering, University of Szeged, Moszkvai krt. 9, Szeged, H-6725, Hungary
| | - Szabolcs Kertész
- Department of Process Engineering, Faculty of Engineering, University of Szeged, Moszkvai krt. 9, Szeged, H-6725, Hungary
| | - Cecilia Hodúr
- Department of Process Engineering, Faculty of Engineering, University of Szeged, Moszkvai krt. 9, Szeged, H-6725, Hungary
| | - Zsuzsanna László
- Department of Process Engineering, Faculty of Engineering, University of Szeged, Moszkvai krt. 9, Szeged, H-6725, Hungary.
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22
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Cai M, Lv Y, Luo S, Liu Y, Sun P. Fouling Behavior of Polyphenols during Model Juice Ultrafiltration: Effect of Membrane Properties. FOOD BIOPROCESS TECH 2018. [DOI: 10.1007/s11947-018-2110-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bacenetti J, Bava L, Schievano A, Zucali M. Whey protein concentrate (WPC) production: Environmental impact assessment. J FOOD ENG 2018. [DOI: 10.1016/j.jfoodeng.2017.12.018] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Kovács I, Veréb G, Kertész S, Beszédes S, Hodúr C, László Z. Investigation of surface and filtration properties of TiO 2 coated ultrafiltration polyacrylonitrile membranes. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2018; 77:931-938. [PMID: 29488956 DOI: 10.2166/wst.2017.610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In the present work, the surface and filtration properties of TiO2 coated polyacrylonitrile ultrafiltration membranes were investigated. The membranes were coated using the physical deposition method. The appropriate TiO2 coverage proved to be 0.3 mg/cm2, which formed a hydrophilic cake layer on the membrane surface. The cleanability without chemicals and the retention of the coated membranes was compared to the neat membrane after model oily wastewater filtration. The cleaning sustained of rinsing with distilled water and ultraviolet (UV) irradiation of the fouled membranes. The coated membranes have better antifouling properties; higher flux values during oily water filtration and by the mentioned cleaning process a significantly better flux recovery can be achieved. The amount of the catalyst and the irradiation time are limiting factors to the effectiveness of the cleaning process. The UV irradiation increases the wettability of the fouled membrane surface by degrading the oil layer. The coating, the continuous use, and the cleaning process do not significantly affect the membrane retention expressed in chemical oxygen demand.
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Affiliation(s)
- I Kovács
- Doctoral School of Environmental Sciences, University of Szeged, Rerrich Béla square. 1., Szeged H-6720, Hungary; Department of Process Engineering, Faculty of Engineering, University of Szeged, Moszkvai krt. 9., Szeged H-6725, Hungary E-mail:
| | - G Veréb
- Department of Process Engineering, Faculty of Engineering, University of Szeged, Moszkvai krt. 9., Szeged H-6725, Hungary E-mail:
| | - Sz Kertész
- Department of Process Engineering, Faculty of Engineering, University of Szeged, Moszkvai krt. 9., Szeged H-6725, Hungary E-mail:
| | - S Beszédes
- Department of Process Engineering, Faculty of Engineering, University of Szeged, Moszkvai krt. 9., Szeged H-6725, Hungary E-mail:
| | - C Hodúr
- Department of Process Engineering, Faculty of Engineering, University of Szeged, Moszkvai krt. 9., Szeged H-6725, Hungary E-mail:
| | - Zs László
- Department of Process Engineering, Faculty of Engineering, University of Szeged, Moszkvai krt. 9., Szeged H-6725, Hungary E-mail:
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Navarro-Lisboa R, Herrera C, Zúñiga RN, Enrione J, Guzmán F, Matiacevich S, Astudillo-Castro C. Quinoa proteins ( Chenopodium quinoa Willd.) fractionated by ultrafiltration using ceramic membranes: The role of pH on physicochemical and conformational properties. FOOD AND BIOPRODUCTS PROCESSING 2017. [DOI: 10.1016/j.fbp.2016.11.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Luján-Facundo M, Mendoza-Roca J, Cuartas-Uribe B, Álvarez-Blanco S. Study of membrane cleaning with and without ultrasounds application after fouling with three model dairy solutions. FOOD AND BIOPRODUCTS PROCESSING 2016. [DOI: 10.1016/j.fbp.2016.06.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Jelemenský M, Sharma A, Paulen R, Fikar M. Time-optimal control of diafiltration processes in the presence of membrane fouling. Comput Chem Eng 2016. [DOI: 10.1016/j.compchemeng.2016.04.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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28
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Description of fouling, surface changes and heterogeneity of membranes by color-based digital image analysis. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2016.02.057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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29
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Liu J, Dong B, Cao B, Zhao D, Wang Z. Microfiltration process for surface water treatment: irreversible fouling identification and chemical cleaning. RSC Adv 2016. [DOI: 10.1039/c6ra18284d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Irreversible fouling before (left) and after (right) chemical cleaning.
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Affiliation(s)
- Junxia Liu
- Faculty of Civil and Transportation Engineering
- Guangdong University of Technology
- Guangzhou 510006
- China
- State Key Laboratory of Pollution Control and Resource Reuse
| | - Bingzhi Dong
- State Key Laboratory of Pollution Control and Resource Reuse
- School of Environmental Science and Engineering
- Tongji University
- Shanghai 200092
- China
| | - Bangqing Cao
- Academy of Civil Engineering & Architecture
- Nanyang Normal University
- Nanyang 473061
- China
| | - Dongsheng Zhao
- State Key Laboratory of Pollution Control and Resource Reuse
- School of Environmental Science and Engineering
- Tongji University
- Shanghai 200092
- China
| | - Zhihong Wang
- Faculty of Civil and Transportation Engineering
- Guangdong University of Technology
- Guangzhou 510006
- China
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30
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Zin G, Penha FM, Rezzadori K, Silva FL, Guizoni K, Petrus JCC, Oliveira JV, Di Luccio M. Fouling control in ultrafiltration of bovine serum albumin and milk by the use of permanent magnetic field. J FOOD ENG 2016. [DOI: 10.1016/j.jfoodeng.2015.07.033] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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