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Li S, Meng H, Wang H, Vrouwenvelder JS, Li Z. A sacrificial protective layer as fouling control strategy for nanofiltration in water treatment. WATER RESEARCH 2022; 219:118554. [PMID: 35576758 DOI: 10.1016/j.watres.2022.118554] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 04/29/2022] [Accepted: 05/03/2022] [Indexed: 06/15/2023]
Abstract
High-performance nanofiltration (NF) membrane with super antifouling capability as well as reusability is highly desired in water treatment. A new antifouling strategy by a coating-decoating-recoating cycle was investigated for effective removal of fouling and restoring the original membrane performance. The functional membrane surface was fabricated by in-situ coating a 'green' and biodegradable carboxymethyl chitosan (CMCS) layer as physical barrier. The CMCS layer can be decoated and re-coated by simple procedures. Results showed that (i) the CMCS layer enhanced surface hydrophilicity, surface smoothness and fouling resistance of NF membrane, (ii) both the unfouled and fouled CMCS layer were easily decoated by the strong acid solution, (iii) the CMCS layer was easily re-coated by facile recoating and (iv) the water flux recovery ratio of membrane with coating layer was maintained more than 88.8% during fouling testing by natural organic matter (NOM) after four sequential cycles of coating, decoating and recoating process. The re-coated membrane exhibited stable, improved membrane operational and antifouling performance. The coating-decoating-recoating approach is proven to be low-cost and eco-friendly strategy for NOM fouling control on NF membrane in water treatment applications.
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Affiliation(s)
- Sihang Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Huanna Meng
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Haihua Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Johannes S Vrouwenvelder
- Water Desalination and Reuse Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Zhenyu Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Kuzminova A, Dmitrenko M, Zolotarev A, Korniak A, Poloneeva D, Selyutin A, Emeline A, Yushkin A, Foster A, Budd P, Ermakov S. Novel Mixed Matrix Membranes Based on Polymer of Intrinsic Microporosity PIM-1 Modified with Metal-Organic Frameworks for Removal of Heavy Metal Ions and Food Dyes by Nanofiltration. MEMBRANES 2021; 12:membranes12010014. [PMID: 35054540 PMCID: PMC8782022 DOI: 10.3390/membranes12010014] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 12/18/2022]
Abstract
Nowadays, nanofiltration is widely used for water treatment due to its advantages, such as energy-saving, sustainability, high efficiency, and compact equipment. In the present work, novel nanofiltration membranes based on the polymer of intrinsic microporosity PIM-1 modified by metal-organic frameworks (MOFs)-MIL-140A and MIL-125-were developed to increase nanofiltration efficiency for the removal of heavy metal ions and dyes. The structural and physicochemical properties of the developed PIM-1 and PIM-1/MOFs membranes were studied by the spectroscopic technique (FTIR), microscopic methods (SEM and AFM), and contact angle measurement. Transport properties of the developed PIM-1 and PIM-1/MOFs membranes were evaluated in the nanofiltration of the model and real mixtures containing food dyes and heavy metal ions. It was found that the introduction of MOFs (MIL-140A and MIL-125) led to an increase in membrane permeability. It was demonstrated that the membranes could be used to remove and concentrate the food dyes and heavy metal ions from model and real mixtures.
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Affiliation(s)
- Anna Kuzminova
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 St. Petersburg, Russia; (M.D.); (A.Z.); (A.K.); (D.P.); (A.S.); (A.E.); (S.E.)
- Correspondence: ; Tel.: +7-(812)363-60-00
| | - Mariia Dmitrenko
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 St. Petersburg, Russia; (M.D.); (A.Z.); (A.K.); (D.P.); (A.S.); (A.E.); (S.E.)
| | - Andrey Zolotarev
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 St. Petersburg, Russia; (M.D.); (A.Z.); (A.K.); (D.P.); (A.S.); (A.E.); (S.E.)
| | - Aleksandra Korniak
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 St. Petersburg, Russia; (M.D.); (A.Z.); (A.K.); (D.P.); (A.S.); (A.E.); (S.E.)
| | - Daria Poloneeva
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 St. Petersburg, Russia; (M.D.); (A.Z.); (A.K.); (D.P.); (A.S.); (A.E.); (S.E.)
| | - Artem Selyutin
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 St. Petersburg, Russia; (M.D.); (A.Z.); (A.K.); (D.P.); (A.S.); (A.E.); (S.E.)
| | - Alexei Emeline
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 St. Petersburg, Russia; (M.D.); (A.Z.); (A.K.); (D.P.); (A.S.); (A.E.); (S.E.)
| | - Alexey Yushkin
- A. V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia;
| | - Andrew Foster
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK; (A.F.); (P.B.)
| | - Peter Budd
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK; (A.F.); (P.B.)
| | - Sergey Ermakov
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 St. Petersburg, Russia; (M.D.); (A.Z.); (A.K.); (D.P.); (A.S.); (A.E.); (S.E.)
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