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Pan Y, Liang Z, Li L, Yan L, Wu X. A ratiometric fluorescent probe for selective detection of hypochlorite (ClO -) and gallium (III) (Ga 3+) ions in environmental and food samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 323:124927. [PMID: 39116591 DOI: 10.1016/j.saa.2024.124927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 07/11/2024] [Accepted: 08/01/2024] [Indexed: 08/10/2024]
Abstract
Hypochlorite (ClO-) and gallium (Ⅲ) ions (Ga3+) have extensive applications in various human industries and daily activities. However, their inherent toxicity poses significant risks to environmental preservation and human well-being. Hence, the development of reliable and handy detection tools for ClO- and Ga3+ in the environment and food is crucial. In this study, a ratiometric fluorescent probe was prepared based on benzothiazolaldehyde and pyridine-2-carboxylic acid hydrazide, which exhibited exceptional performance characteristics for the selective detection of ClO- and Ga3+. These features include high specificity, low detection limits (0.28 μM for ClO-, 0.13 μM for Ga3+), mild pH conditions (pH 4-11 for ClO-, pH 6-11 for Ga3+), fast response time (within 30 s), as well as versatile applicability across different matrices such as water, soil, food, and plant samples. Additionally, this probe can be used with a smartphone color recognition app. The probe offers a convenient and effective tool for the detection of ClO- and Ga3+, demonstrating its potential application value in environmental monitoring and food safety.
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Affiliation(s)
- Yan Pan
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541006, PR China
| | - Zhongding Liang
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541006, PR China
| | - Lin Li
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541006, PR China
| | - Liqiang Yan
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541006, PR China.
| | - Xiongzhi Wu
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541006, PR China.
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2
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Chemical Cleaning and Membrane Aging of Poly(vinylidene fluoride) (PVDF) Membranes Fabricated via Non-solvent Induced Phase Separation (NIPS) and Thermally Induced Phase Separation (TIPS). Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
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3
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Yu H, Shangguan S, Xie C, Yang H, Wei C, Rong H, Qu F. Chemical Cleaning and Membrane Aging in MBR for Textile Wastewater Treatment. MEMBRANES 2022; 12:membranes12070704. [PMID: 35877907 PMCID: PMC9316503 DOI: 10.3390/membranes12070704] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 02/01/2023]
Abstract
Membrane bioreactors have been widely used in textile wastewater treatment. Intensive chemical cleaning is indispensable in the MBR for textile wastewater treatment due to the severe membrane fouling implied. This work investigated the aging of three different membranes, polyvinylidene fluoride (PVDF), polyether sulfone (PES), and polytetrafluoroethylene (PTFE), in the MBRs for textile wastewater treatment. Pilot-scale MBRs were operated and the used membrane was characterized. Batch chemical soaking tests were conducted to elucidate the aging properties of the membranes. The results indicated that the PVDF membrane was most liable to the chemical cleaning, and the PES and PTFE membranes were rather stable. The surface hydrophobicity of the PVDF increased in the acid aging test, and the pore size and pure water flux decreased due to the elevated hydrophobic effect; alkaline oxide aging destructed the structure of the PVDF membrane, enlarged pore size, and increased pure water flux. Chemical cleaning only altered the interfacial properties (hydrophobicity and surface zeta potential) of the PES and PTFE membranes. The fluoro-substitution and the dehydrofluorination of the PVDF, chain scission of the PES molecules, and dehydrofluorination of the PTFE were observed in aging. A chemically stable and anti-aging membrane would be of great importance in the MBR for textile wastewater treatment due to the intensive chemical cleaning applied.
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Affiliation(s)
- Huarong Yu
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou 510006, China; (H.Y.); (S.S.); (C.W.); (H.R.)
- School of Civil Engineering, Guangzhou University, Guangzhou 510006, China
| | - Siyuan Shangguan
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou 510006, China; (H.Y.); (S.S.); (C.W.); (H.R.)
- School of Civil Engineering, Guangzhou University, Guangzhou 510006, China
| | - Chenyu Xie
- Foshan Nanhai Jinglong Investment Holding Co., Ltd., Foshan 528211, China;
| | - Haiyang Yang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou 510006, China; (H.Y.); (S.S.); (C.W.); (H.R.)
- School of Civil Engineering, Guangzhou University, Guangzhou 510006, China
- Correspondence: (H.Y.); (F.Q.)
| | - Chunhai Wei
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou 510006, China; (H.Y.); (S.S.); (C.W.); (H.R.)
- School of Civil Engineering, Guangzhou University, Guangzhou 510006, China
| | - Hongwei Rong
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou 510006, China; (H.Y.); (S.S.); (C.W.); (H.R.)
- School of Civil Engineering, Guangzhou University, Guangzhou 510006, China
| | - Fangshu Qu
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou 510006, China; (H.Y.); (S.S.); (C.W.); (H.R.)
- School of Civil Engineering, Guangzhou University, Guangzhou 510006, China
- Correspondence: (H.Y.); (F.Q.)
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4
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Woo T, Nam K, Heo S, Lim JY, Kim S, Yoo C. Predictive maintenance system for membrane replacement time detection using AI-based functional profile monitoring: Application to a full-scale MBR plant. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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5
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Membrane aging effects on water recovery during full-scale potable reuse: Mathematical optimization of backwashing frequency for constant-flux microfiltration. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Yang Y, Lai Q, Mahmud S, Lu J, Zhang G, Huang Z, Wu Q, Zeng Q, Huang Y, Lei H, Xiong Z. Potocatalytic antifouling membrane with dense nano-TiO2 coating for efficient oil-in-water emulsion separation and self-cleaning. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.120204] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Effects of Chemical Cleaning on the Ageing of Polyvinylidene Fluoride Microfiltration and Ultrafiltration Membranes Fouled with Organic and Inorganic Matter. MEMBRANES 2022; 12:membranes12030280. [PMID: 35323755 PMCID: PMC8954782 DOI: 10.3390/membranes12030280] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/23/2022] [Accepted: 02/25/2022] [Indexed: 11/17/2022]
Abstract
Herein, the effects of cleaning with sodium hydroxide and citric acid solutions as cleaning reagents on the changes in the properties of two hollow-fiber PVDF microfiltration (MF) and ultrafiltration (UF) membranes fouled with organic and inorganic matter were investigated. Accelerated membrane ageing was induced by use of high concentrations of tannic acid and iron oxide (Fe2O3) particles in the feed water; these conditions were kept with different membrane soaking times to observe temporal effects. It was found that tannic acid molecules adsorb onto the membrane surface that results in changes in surface characteristics, particularly surface functional groups that are responsible for enhancing membrane’s hydrophilicity. Experimental results demonstrate that NaOH had a stronger effect on the tensile strength and surface chemistry of the fouled MF and UF membranes than citric acid. Prediction of lifetime by an exponential (decay) model confirmed that the UF membrane cleaned with NaOH would be aged within about 1.8 years and the MF membrane after about 5 years, at cleaning every 15 days, downtime 2 h per cleaning, when a 10% tensile strength decrease against the original membrane is allowed.
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Oliveira Filho M, Mailler R, Rocher V, Fayolle Y, Causserand C. Comprehensive study of supported PVDF membrane ageing in MBR: A direct comparison between changes at bench scale and full scale. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Prediction of Membrane Failure in a Water Purification Plant Using Nonhomogeneous Poisson Process Models. MEMBRANES 2021; 11:membranes11110800. [PMID: 34832028 PMCID: PMC8624650 DOI: 10.3390/membranes11110800] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 10/19/2021] [Accepted: 10/19/2021] [Indexed: 12/27/2022]
Abstract
The prediction of membrane failure in full-scale water purification plants is an important but difficult task. Although previous studies employed accelerated laboratory-scale tests of membrane failure, it is not possible to reproduce the complex operational conditions of full-scale plants. Therefore, we aimed to develop prediction models of membrane failure using actual membrane failure data. Because membrane filtration systems are repairable systems, nonhomogeneous Poisson process (NHPP) models, i.e., power law and log-linear models, were employed; the model parameters were estimated using the membrane failure data from a full-scale plant operated for 13 years. Both models were able to predict cumulative failures for forthcoming years; nonetheless, the power law model showed higher stability and narrower confidence intervals than the log-linear model. By integrating two membrane replacement criteria, namely deterioration of filtrate water quality and reduction of membrane permeability, it was possible to predict the time to replace all the membranes on a water purification plant. Finally, the NHPP models coupled with a nonparametric bootstrap method provided a method to select membrane modules for earlier replacement than others. Although the criteria for membrane replacement may vary among membrane filtration plants, the NHPP models presented in this study could be applied to any other plant with membrane failure data.
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10
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Gokulakrishnan SA, Arthanareeswaran G, László Z, Veréb G, Kertész S, Kweon J. Recent development of photocatalytic nanomaterials in mixed matrix membrane for emerging pollutants and fouling control, membrane cleaning process. CHEMOSPHERE 2021; 281:130891. [PMID: 34049085 DOI: 10.1016/j.chemosphere.2021.130891] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 04/23/2021] [Accepted: 05/10/2021] [Indexed: 06/12/2023]
Abstract
Membrane-based separation is an area of extensive research in wastewater treatment, which includes the control of pollution and reuse of water. The fabrication and modification membranes for prevention and reduction of pollution to provide quality water with fouling-free membranes through the wastewater treatment are the progressive approaches in the industries. Several research works have been extensively working on modification and fabrication polymer membranes with integration of advanced oxidation process (AOP) to overcome the membrane fouling. This review describes the modification of membranes with various nanomaterials such as inorganic and modified carbon which can be used for pollution control and enhance the anti-fouling properties of ultrafiltration membranes. The effects on nanomaterials loading percentage, nanomaterials interaction with the polymers and rejection performances of the surface tuned membrane are elaborated. Secondly, the fouled membrane chemical cleaning process and NaOCl adverse effect on polymer structure are critically investigated. Moreover, state-of-art in the photocatalytic self-cleaning process are reviewed in this manuscript, and future perspectives on fouling mitigation based on AOP integrated membrane technology have also discussed.
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Affiliation(s)
- S A Gokulakrishnan
- Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli, 620015, Tamil Nadu, India
| | - G Arthanareeswaran
- Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli, 620015, Tamil Nadu, India.
| | - Zsuzsanna László
- Department of Biosystem Engineering, Faculty of Engineering, University of Szeged, Szeged, Hungary
| | - Gábor Veréb
- Department of Biosystem Engineering, Faculty of Engineering, University of Szeged, Szeged, Hungary
| | - Szabolcs Kertész
- Department of Biosystem Engineering, Faculty of Engineering, University of Szeged, Szeged, Hungary
| | - Jihyang Kweon
- Water Treatment and Membrane Laboratory, Department of Environmental Engineering, Konkuk University, Seoul, 05029, Republic of Korea
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11
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Jacquet N, Wurtzer S, Darracq G, Wyart Y, Moulin L, Moulin P. Effect of concentration on virus removal for ultrafiltration membrane in drinking water production. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119417] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Li K, Su Q, Li S, Wen G, Huang T. Aging of PVDF and PES ultrafiltration membranes by sodium hypochlorite: Effect of solution pH. J Environ Sci (China) 2021; 104:444-455. [PMID: 33985746 DOI: 10.1016/j.jes.2020.12.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 12/01/2020] [Accepted: 12/16/2020] [Indexed: 06/12/2023]
Abstract
Sodium hypochlorite (NaClO) is a commonly applied cleaning agent for ultrafiltration membranes in water and wastewater treatment. Long-term exposure to NaClO might change the properties and performance of polymeric membranes, and ultimately shorten membrane lifespan. Active species in NaClO solution vary with solution pH, and the aging effects can change depending on the membrane material. In this study, the aging of polyvinylidene fluoride (PVDF) and polyethersulfone (PES) membranes by NaClO at pH 3-11 was investigated by examining variations in chemical composition, surface charge, surface morphology, mechanical strength, permeability, and retention ability. Polyvinyl pyrrolidone (PVP), which was blended in both membranes, was oxidized and dislodged due to NaClO aging at all investigated pH values, but the oxidation products and dislodgement ratio of PVP varied with solution pH. For the PVDF membrane, NaClO aging at pH 3-11 caused a moderate increase in permeability and decreased retention due to the oxidation and release of PVP. The tensile strength decreased only at pH 11 because of the defluorination of PVDF molecules. For the PES membrane, NaClO aging at all investigated pH resulted in chain scission of PES molecules, which was favored at pH 7 and 9, potentially due to the formation of free radicals. Therefore, a decrease in tensile strength and retention ability, as well as an increase in permeability, occurred in the PES membrane for NaClO aging at pH 3-11. Overall, the results can provide a basis for selecting chemical cleaning conditions for PVDF and PES membranes.
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Affiliation(s)
- Kai Li
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Qian Su
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Shu Li
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Gang Wen
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Tinglin Huang
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
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Ren L, Yu S, Yang H, Li L, Cai L, Xia Q, Shi Z, Liu G. Chemical cleaning reagent of sodium hypochlorite eroding polyvinylidene fluoride ultrafiltration membranes: Aging pathway, performance decay and molecular mechanism. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119141] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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14
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Li S, Zhao X, Zhang H. Aging retardation strategy of PVDF membranes: evaluation of free radical scavenging effect of nano-particles. NEW J CHEM 2021. [DOI: 10.1039/d0nj05980c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
ESR and spectrophotometry proved that nano-particles can effectively remove free radicals produced by NaClO, and analyzed the mechanism of delaying aging.
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Affiliation(s)
- Siyi Li
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University
- Tianjin
- China
- School of Environmental Science and Engineering
- Tiangong University
| | - Xuehui Zhao
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University
- Tianjin
- China
- School of Environmental Science and Engineering
- Tiangong University
| | - Hongwei Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University
- Tianjin
- China
- School of Environmental Science and Engineering
- Tiangong University
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15
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16
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He Z, Mahmud S, Zhao S, Yang Y, Zhu L, Zhao Y, Zeng Q, Xiong Z, Hu C. Hierarchically Active Poly(vinylidene fluoride) Membrane Fabricated by In Situ Generated Zero-Valent Iron for Fouling Reduction. ACS APPLIED MATERIALS & INTERFACES 2020; 12:10993-11004. [PMID: 32031778 DOI: 10.1021/acsami.9b22147] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Sodium hypochlorite (NaClO) solution is a typical cleaning agent for membrane fouling. However, it can damage membrane chemical structures and produce toxic disinfection byproducts, which in turn reduces the membrane performance. This study focuses on the fabrication of active membranes thereby overcoming the limitations of chemical cleaning. A hierarchical active poly(vinylidene fluoride) membrane with polydopamine/polyethyleneimine (PEI) co-supported iron nanoparticle (Fe NP) catalysts was successfully constructed and denoted as a Fe-HP-membrane. The Fe-HP-membrane exhibited excellent advanced oxidation activity with maximum flux recoveries (∼85% with bovine serum albumin [BSA] and ∼95% with humic acid [HA] solutions). After the static experiment of ∼30 days, the BSA proteins and HA successfully desorbed from the membrane surface. Especially, with a trace amount of hydrogen peroxide (H2O2) flowing over the surface of the Fe-HP-membrane, highly exposed active sites were observed. Membrane cleaning showed that the "outside-to-in" active surfaces generated considerable amounts of •OH radicals at the interface of BSA or HA and the fouled membrane. As a result, the unwanted foulants were successfully removed from the membrane interface, enabling multiple use of the Fe-HP-membrane. Therefore, backwashing with a small amount of H2O2 (0.33 wt %) covered ∼20% of the flux. In contrary, backwashing with NaClO (1 wt %) can only achieve a flux recovery of ∼10% after six consecutive BSA filtration cycles. The Fe-HP-membrane exhibited better HA foulant removal (a flux recovery of ∼51%) after backwashing with H2O2 than using NaClO (a flux recovery of ∼43%). Our findings demonstrate a new platform for water treatment and regeneration of fouled membranes.
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Affiliation(s)
- Zijun He
- Institute of Environmental Research at Greater Bay; Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, Guangdong 510006, PR China
| | - Sakil Mahmud
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, PR China
- University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Shuaifei Zhao
- Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia
| | - Yang Yang
- Institute of Environmental Research at Greater Bay; Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, Guangdong 510006, PR China
| | - Lijing Zhu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, PR China
- University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yubao Zhao
- Institute of Environmental Research at Greater Bay; Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, Guangdong 510006, PR China
| | - Qingyi Zeng
- Institute of Environmental Research at Greater Bay; Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, Guangdong 510006, PR China
| | - Zhu Xiong
- Institute of Environmental Research at Greater Bay; Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, Guangdong 510006, PR China
| | - Chun Hu
- Institute of Environmental Research at Greater Bay; Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, Guangdong 510006, PR China
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Fu W, Zhang W. Chemical aging and impacts on hydrophilic and hydrophobic polyether sulfone (PES) membrane filtration performances. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2019.108960] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Li K, Wen G, Li S, Chang H, Shao S, Huang T, Li G, Liang H. Effect of pre-oxidation on low pressure membrane (LPM) for water and wastewater treatment: A review. CHEMOSPHERE 2019; 231:287-300. [PMID: 31129410 DOI: 10.1016/j.chemosphere.2019.05.081] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 05/10/2019] [Accepted: 05/11/2019] [Indexed: 05/26/2023]
Abstract
Low pressure membrane (LPM) filtration is a promising technology for drinking water production, wastewater reclamation as well as pretreatment for seawater desalination. However, wider implementation of LPM is restricted by their inherent drawbacks, i.e., membrane fouling and insufficient rejection for dissolved contaminants. Pretreatment of feed water is a major method to improve the performance of LPM, and pre-oxidation has gained extensive attention because it can significantly alter compositions and properties of feed water through chemical reactions. This paper attempts to systematically review efficiency and mechanisms of pre-oxidation in membrane fouling control and permeate water quality improvement. On the basis of briefly discussing major foulants and fouling mechanisms of LPM, advantages and disadvantages of pre-oxidation in mitigating organic fouling, inorganic fouling and biofouling are discussed in detail. Impacts of pre-oxidation on removal of micropollutants, bulk organic matter and inorganic pollutants are summarized, and potential by-products of different oxidants are presented. As a prerequisite for the integration of chemical oxidation with LPM filtration, compatibility of membrane with oxidants at low concentration and long exposure time are highlighted. Finally, the existing challenges and future research needs in practical application of chemical oxidation to improve performance of LPM are also discussed.
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Affiliation(s)
- Kai Li
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China.
| | - Gang Wen
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China.
| | - Shu Li
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China.
| | - Haiqing Chang
- College of Architecture and Environment, Sichuan University, Chengdu, 610207, PR China.
| | - Senlin Shao
- School of Civil Engineering, Wuhan University, Wuhan, 430072, PR China.
| | - Tinglin Huang
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China.
| | - Guibai Li
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Harbin, 150090, PR China.
| | - Heng Liang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Harbin, 150090, PR China.
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