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Yang L, Yu H, Zhao H, Xia C, Yu Q, Chen X, Cao G, Cai L, Meng S, Tang CY. Degradation of polyamide nanofiltration membranes by free chlorine and halide ions: Kinetics, mechanisms, and implications. WATER RESEARCH 2025; 272:122963. [PMID: 39689551 DOI: 10.1016/j.watres.2024.122963] [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: 07/16/2024] [Revised: 11/13/2024] [Accepted: 12/10/2024] [Indexed: 12/19/2024]
Abstract
The kinetics of polyamide membrane degradation by free chlorine and halide ions (Br- and Cl-) were innovatively evaluated based on physicochemical properties and filtration performance, using water/solute permeability coefficient in addition to bromide incorporation as important indicators. The reaction rate constants for the reduced water and H3BO3 permeability coefficient were 1-2 orders of magnitude higher at 0-1 h than 1-10 h. N-bromination and bromination-promoted hydrolysis are dominant degradation mechanisms at 0-1 h (reflected by the breakage of hydrogen bond, the increased Ca binding content, and the increased charge density), and ring-bromination further occurs at 1-10 h (reflected by the disappearance or weakening of aromatic amide band and the nearly constant hydrogen bond). The more reactive but less abundant brominating agents (Br2O, BrOCl, BrCl, and Br2) played significant roles in membrane degradation, contradicting the conventional belief that HOBr is the only reactive species. BrCl at pH 4.0 and BrOCl and Br2O at pH 7.0 made significantly higher contributions to membrane degradation than HOBr (>76 % vs. <13 %). The increased contribution of BrCl and Br2 with the increased [Cl-] and [Br-]ex (the excess bromide, defined as [Br-]o - [HOCl]o when [Br-]o > [HOCl]o), respectively, was responsible for the greater reduction of water permeability coefficient. The innovative and simple approach developed in this study provides important insights to evaluate and predict membrane degradation.
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Affiliation(s)
- Linyan Yang
- National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, East China University of Science and Technology, Shanghai 200237, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China; School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, PR China.
| | - Haixiang Yu
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Huihui Zhao
- National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, East China University of Science and Technology, Shanghai 200237, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China; School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Caiping Xia
- School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Qinyu Yu
- School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Xueming Chen
- Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, College of Environment and Safety Engineering, Fuzhou University, Fuzhou, Fujian, 350116, PR China.
| | - Guomin Cao
- School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Lankun Cai
- School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Shujuan Meng
- School of Space and Environment, Beihang University, Beijing 100191, PR China
| | - Chuyang Y Tang
- Department of Civil Engineering, University of Hong Kong, Pokfulam, Hong Kong, PR China
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Zhao H, Yang L, Chen X, Wang J, Bai L, Cao G, Cai L, Tang CY. Reactivity of various brominating agents toward polyamide nanofiltration membranes. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Surface-tailoring chlorine resistant materials and strategies for polyamide thin film composite reverse osmosis membranes. Front Chem Sci Eng 2021. [DOI: 10.1007/s11705-021-2109-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Asadi Tashvigh A, Elshof MG, Benes NE. Development of Thin-Film Composite Membranes for Nanofiltration at Extreme pH. ACS APPLIED POLYMER MATERIALS 2021; 3:5912-5919. [PMID: 34796335 PMCID: PMC8593864 DOI: 10.1021/acsapm.1c01172] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 10/18/2021] [Indexed: 06/13/2023]
Abstract
Water recycling is one of the most sustainable solutions to growing water scarcity challenges. However, wastewaters usually contain organic pollutants and often are at extreme pH, which complicates the treatment of these streams with conventional membranes. In this work, we report the synthesis of a robust membrane material that can withstand prolonged exposure to extreme pH (of 1 or 13 for 2 months). Polyamine thin film composite (TFC) membranes are prepared in situ by interfacial polymerization between 1,3,5-tris(bromomethyl)benzene (tBrMeB) and p-phenylenediamine (PPD). Contrary to conventional polyamide TFC membranes, enhanced pH stability is achieved by eliminating the carbonyl groups from the polymer network. The membranes showed pure water permeance and molecular weight cutoff (MWCO) of 0.28 ± 0.09 L m-2 h-2 bar-1 and 820 ± 132 g mol-1, respectively. The membrane performance is further enhanced by manipulating the monomer structures and replacing p-phenylenediamine with m-phenylenediamine, resulting in a higher permeance of 1.3 ± 0.3 L m-2 h-1 bar-1 and a lower MWCO of 566 ± 43 g mol-1. Given the ease of fabrication and excellent stability, this chemistry represents a step forward in the fabrication of robust membranes for industrial wastewater recycling.
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Affiliation(s)
- Akbar Asadi Tashvigh
- Biobased
Chemistry and Technology, Wageningen University
& Research, Bornse Weilanden 9, P.O. Box 17, 6708
WG Wageningen, The Netherlands
| | - Maria G. Elshof
- Films
in Fluids Group, Membrane Science and Technology Cluster, Faculty
of Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500
AE Enschede, The Netherlands
| | - Nieck E. Benes
- Films
in Fluids Group, Membrane Science and Technology Cluster, Faculty
of Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500
AE Enschede, The Netherlands
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Zhang X, Huang H, Li X, Wang J, Wei Y, Zhang H. Bioinspired chlorine-resistant tailoring for polyamide reverse osmosis membrane based on tandem oxidation of natural α-lipoic acid on the surface. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118521] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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