Review of New Approaches for Fouling Mitigation in Membrane Separation Processes in Water Treatment Applications
This review investigates antifouling agents used in the process of membrane separation (MS), in reverse osmosis (RO), ultrafiltration (UF), nanofiltration (NF), microfiltration (MF), membrane distillation (MD), and membrane bioreactors (MBR), and clarifies the fouling mechanism. Membrane fouling is...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Separations |
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| Online Access: | https://www.mdpi.com/2297-8739/9/1/1 |
| _version_ | 1828143585112883200 |
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| author | Mervette El Batouti Nouf F. Alharby Mahmoud M. Elewa |
| author_facet | Mervette El Batouti Nouf F. Alharby Mahmoud M. Elewa |
| author_sort | Mervette El Batouti |
| collection | DOAJ |
| description | This review investigates antifouling agents used in the process of membrane separation (MS), in reverse osmosis (RO), ultrafiltration (UF), nanofiltration (NF), microfiltration (MF), membrane distillation (MD), and membrane bioreactors (MBR), and clarifies the fouling mechanism. Membrane fouling is an incomplete substance formed on the membrane surface, which will quickly reduce the permeation flux and damage the membrane. Foulant is colloidal matter: organic matter (humic acid, protein, carbohydrate, nano/microplastics), inorganic matter (clay such as potassium montmorillonite, silica salt, metal oxide, etc.), and biological matter (viruses, bacteria and microorganisms adhering to the surface of the membrane in the case of nutrients) The stability and performance of the tested nanometric membranes, as well as the mitigation of pollution assisted by electricity and the cleaning and repair of membranes, are reported. Physical, chemical, physico-chemical, and biological methods for cleaning membranes. Biologically induced biofilm dispersion effectively controls fouling. Dynamic changes in membrane foulants during long-term operation are critical to the development and implementation of fouling control methods. Membrane fouling control strategies show that improving membrane performance is not only the end goal, but new ideas and new technologies for membrane cleaning and repair need to be explored and developed in order to develop future applications. |
| first_indexed | 2024-04-11T20:00:50Z |
| format | Article |
| id | doaj.art-e0f7158bc82248e0b30488bca8780ce1 |
| institution | Directory Open Access Journal |
| issn | 2297-8739 |
| language | English |
| last_indexed | 2024-04-11T20:00:50Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Separations |
| spelling | doaj.art-e0f7158bc82248e0b30488bca8780ce12022-12-22T04:05:40ZengMDPI AGSeparations2297-87392021-12-0191110.3390/separations9010001Review of New Approaches for Fouling Mitigation in Membrane Separation Processes in Water Treatment ApplicationsMervette El Batouti0Nouf F. Alharby1Mahmoud M. Elewa2Chemistry Department, Faculty of Science, Alexandria University, Alexandria 21526, EgyptDepartment of Chemistry, College of Science, Qassim University, Buraydah 51452, Qassim, Saudi ArabiaArab Academy for Science, Technology and Maritime Transport, Alexandria 1029, EgyptThis review investigates antifouling agents used in the process of membrane separation (MS), in reverse osmosis (RO), ultrafiltration (UF), nanofiltration (NF), microfiltration (MF), membrane distillation (MD), and membrane bioreactors (MBR), and clarifies the fouling mechanism. Membrane fouling is an incomplete substance formed on the membrane surface, which will quickly reduce the permeation flux and damage the membrane. Foulant is colloidal matter: organic matter (humic acid, protein, carbohydrate, nano/microplastics), inorganic matter (clay such as potassium montmorillonite, silica salt, metal oxide, etc.), and biological matter (viruses, bacteria and microorganisms adhering to the surface of the membrane in the case of nutrients) The stability and performance of the tested nanometric membranes, as well as the mitigation of pollution assisted by electricity and the cleaning and repair of membranes, are reported. Physical, chemical, physico-chemical, and biological methods for cleaning membranes. Biologically induced biofilm dispersion effectively controls fouling. Dynamic changes in membrane foulants during long-term operation are critical to the development and implementation of fouling control methods. Membrane fouling control strategies show that improving membrane performance is not only the end goal, but new ideas and new technologies for membrane cleaning and repair need to be explored and developed in order to develop future applications.https://www.mdpi.com/2297-8739/9/1/1membrane foulingmembrane fouling controlwastewater treatmentbiofouling |
| spellingShingle | Mervette El Batouti Nouf F. Alharby Mahmoud M. Elewa Review of New Approaches for Fouling Mitigation in Membrane Separation Processes in Water Treatment Applications Separations membrane fouling membrane fouling control wastewater treatment biofouling |
| title | Review of New Approaches for Fouling Mitigation in Membrane Separation Processes in Water Treatment Applications |
| title_full | Review of New Approaches for Fouling Mitigation in Membrane Separation Processes in Water Treatment Applications |
| title_fullStr | Review of New Approaches for Fouling Mitigation in Membrane Separation Processes in Water Treatment Applications |
| title_full_unstemmed | Review of New Approaches for Fouling Mitigation in Membrane Separation Processes in Water Treatment Applications |
| title_short | Review of New Approaches for Fouling Mitigation in Membrane Separation Processes in Water Treatment Applications |
| title_sort | review of new approaches for fouling mitigation in membrane separation processes in water treatment applications |
| topic | membrane fouling membrane fouling control wastewater treatment biofouling |
| url | https://www.mdpi.com/2297-8739/9/1/1 |
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