Chemical Cleaning Process of Polymeric Nanofibrous Membranes
Membrane fouling is one of the most significant issues to overcome in membrane-based technologies as it causes a decrease in the membrane flux and increases operational costs. This study investigates the effect of common chemical cleaning agents on polymeric nanofibrous membranes (PNM) prepared by p...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/14/6/1102 |
| _version_ | 1797443302486704128 |
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| author | Aysegul Gul Jakub Hruza Lukas Dvorak Fatma Yalcinkaya |
| author_facet | Aysegul Gul Jakub Hruza Lukas Dvorak Fatma Yalcinkaya |
| author_sort | Aysegul Gul |
| collection | DOAJ |
| description | Membrane fouling is one of the most significant issues to overcome in membrane-based technologies as it causes a decrease in the membrane flux and increases operational costs. This study investigates the effect of common chemical cleaning agents on polymeric nanofibrous membranes (PNM) prepared by polyvinylidene fluoride (PVDF), polyacrylonitrile (PAN), and polyamide 6 (PA6) nanofibers. Common alkaline and acid membrane cleaners were selected as the chemical cleaning agents. Membrane surface morphology was investigated. The PAN PNM were selected and fouled by engine oil and then cleaned by the different chemical cleaning agents at various ratios. The SEM results indicated that the use of chemical agents had some effects on the surface of the nanofibrous membranes. Moreover, alkaline cleaning of the fouled membrane using the Triton X 100 surfactant showed a two to five times higher flux recovery than without using a surfactant. Among the tested chemical agents, the highest flux recovery rate was obtained by a binary solution of 5% sodium hydroxide + Triton for alkaline cleaning, and an individual solution of 1% citric acid for acidic cleaning. The results presented here provide one of the first investigations into the chemical cleaning of nanofiber membranes. |
| first_indexed | 2024-03-09T12:54:01Z |
| format | Article |
| id | doaj.art-8e5a6e6e5d194fd6a5c4af9e43ccd8c9 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T12:54:01Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-8e5a6e6e5d194fd6a5c4af9e43ccd8c92023-11-30T22:02:31ZengMDPI AGPolymers2073-43602022-03-01146110210.3390/polym14061102Chemical Cleaning Process of Polymeric Nanofibrous MembranesAysegul Gul0Jakub Hruza1Lukas Dvorak2Fatma Yalcinkaya3Institute for Nanomaterials, Advanced Technology and Innovation, Technical University of Liberec, Studentska 1402/2, 46117 Liberec, Czech RepublicInstitute for Nanomaterials, Advanced Technology and Innovation, Technical University of Liberec, Studentska 1402/2, 46117 Liberec, Czech RepublicInstitute for Nanomaterials, Advanced Technology and Innovation, Technical University of Liberec, Studentska 1402/2, 46117 Liberec, Czech RepublicInstitute for Nanomaterials, Advanced Technology and Innovation, Technical University of Liberec, Studentska 1402/2, 46117 Liberec, Czech RepublicMembrane fouling is one of the most significant issues to overcome in membrane-based technologies as it causes a decrease in the membrane flux and increases operational costs. This study investigates the effect of common chemical cleaning agents on polymeric nanofibrous membranes (PNM) prepared by polyvinylidene fluoride (PVDF), polyacrylonitrile (PAN), and polyamide 6 (PA6) nanofibers. Common alkaline and acid membrane cleaners were selected as the chemical cleaning agents. Membrane surface morphology was investigated. The PAN PNM were selected and fouled by engine oil and then cleaned by the different chemical cleaning agents at various ratios. The SEM results indicated that the use of chemical agents had some effects on the surface of the nanofibrous membranes. Moreover, alkaline cleaning of the fouled membrane using the Triton X 100 surfactant showed a two to five times higher flux recovery than without using a surfactant. Among the tested chemical agents, the highest flux recovery rate was obtained by a binary solution of 5% sodium hydroxide + Triton for alkaline cleaning, and an individual solution of 1% citric acid for acidic cleaning. The results presented here provide one of the first investigations into the chemical cleaning of nanofiber membranes.https://www.mdpi.com/2073-4360/14/6/1102nanofiberPANmembranemicrofiltrationcleaningchemical agents |
| spellingShingle | Aysegul Gul Jakub Hruza Lukas Dvorak Fatma Yalcinkaya Chemical Cleaning Process of Polymeric Nanofibrous Membranes Polymers nanofiber PAN membrane microfiltration cleaning chemical agents |
| title | Chemical Cleaning Process of Polymeric Nanofibrous Membranes |
| title_full | Chemical Cleaning Process of Polymeric Nanofibrous Membranes |
| title_fullStr | Chemical Cleaning Process of Polymeric Nanofibrous Membranes |
| title_full_unstemmed | Chemical Cleaning Process of Polymeric Nanofibrous Membranes |
| title_short | Chemical Cleaning Process of Polymeric Nanofibrous Membranes |
| title_sort | chemical cleaning process of polymeric nanofibrous membranes |
| topic | nanofiber PAN membrane microfiltration cleaning chemical agents |
| url | https://www.mdpi.com/2073-4360/14/6/1102 |
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