Assessing the fouling behavior of PTFE membrane in air-gap membrane distillation against oil-in-brine stabilized emulsions
Abstract Understanding the fouling behavior in membrane operations is crucial for designing an effective treatment sequence. The membrane materials, feed characteristics, and operating conditions affect the fouling behavior. In this study, the fouling behavior of polytetrafluoroethylene (PTFE) membr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-01-01
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| Series: | Applied Water Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s13201-023-02086-y |
| _version_ | 1797273710485307392 |
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| author | Amr E. Mansi Sahar M. El-Marsafy Yasser Elhenawy Mohamed Bassyouni |
| author_facet | Amr E. Mansi Sahar M. El-Marsafy Yasser Elhenawy Mohamed Bassyouni |
| author_sort | Amr E. Mansi |
| collection | DOAJ |
| description | Abstract Understanding the fouling behavior in membrane operations is crucial for designing an effective treatment sequence. The membrane materials, feed characteristics, and operating conditions affect the fouling behavior. In this study, the fouling behavior of polytetrafluoroethylene (PTFE) membrane in membrane distillation was assessed after the treatment of oil-in-brine stabilized emulsions. Membrane backwash by water in membrane distillation partially restored the membrane’s initial condition and eliminated salt fouling. Moreover, the effect of feed pretreatment by ultrafiltration on the fouling of the subsequent PTFE membrane was investigated. Remarkable improvements in salt rejection (> 98.5%) and oil rejection (> 96%) were observed for the hybrid system. Extensive characterizations were carried out to evaluate the fouling behavior. Surface morphology and elemental analysis revealed the nature of foulants. Fourier transform infrared spectroscopy was utilized to study the change in the surface chemistry of the membranes after being subjected to the oily brine feed. No peak shifting was observed indicating no chemical bonding between the organic contaminants and the membrane surface. Further elaboration of the results was achieved by measuring the mechanical stability and contact angle of the membranes. Reduction in the mechanical properties and water contact angle of the membranes was observed after fouling and wetting. Results indicated that ultrafiltration was an effective pretreatment process for membrane distillation using PTFE membrane. However, more unit operations should be incorporated to enhance the membranes’ integrity. |
| first_indexed | 2024-03-07T14:47:12Z |
| format | Article |
| id | doaj.art-f159c0b04bc949da942ae623baef112a |
| institution | Directory Open Access Journal |
| issn | 2190-5487 2190-5495 |
| language | English |
| last_indexed | 2024-03-07T14:47:12Z |
| publishDate | 2024-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Applied Water Science |
| spelling | doaj.art-f159c0b04bc949da942ae623baef112a2024-03-05T19:54:57ZengSpringerOpenApplied Water Science2190-54872190-54952024-01-0114212010.1007/s13201-023-02086-yAssessing the fouling behavior of PTFE membrane in air-gap membrane distillation against oil-in-brine stabilized emulsionsAmr E. Mansi0Sahar M. El-Marsafy1Yasser Elhenawy2Mohamed Bassyouni3Department of Chemical Engineering, Faculty of Engineering, Port Said UniversityDepartment of Chemical Engineering, Faculty of Engineering, University of CairoCenter of Excellence in Membrane-Based Water Desalination Technology for Testing and Characterization (CEMTC), Port Said UniversityDepartment of Chemical Engineering, Faculty of Engineering, Port Said UniversityAbstract Understanding the fouling behavior in membrane operations is crucial for designing an effective treatment sequence. The membrane materials, feed characteristics, and operating conditions affect the fouling behavior. In this study, the fouling behavior of polytetrafluoroethylene (PTFE) membrane in membrane distillation was assessed after the treatment of oil-in-brine stabilized emulsions. Membrane backwash by water in membrane distillation partially restored the membrane’s initial condition and eliminated salt fouling. Moreover, the effect of feed pretreatment by ultrafiltration on the fouling of the subsequent PTFE membrane was investigated. Remarkable improvements in salt rejection (> 98.5%) and oil rejection (> 96%) were observed for the hybrid system. Extensive characterizations were carried out to evaluate the fouling behavior. Surface morphology and elemental analysis revealed the nature of foulants. Fourier transform infrared spectroscopy was utilized to study the change in the surface chemistry of the membranes after being subjected to the oily brine feed. No peak shifting was observed indicating no chemical bonding between the organic contaminants and the membrane surface. Further elaboration of the results was achieved by measuring the mechanical stability and contact angle of the membranes. Reduction in the mechanical properties and water contact angle of the membranes was observed after fouling and wetting. Results indicated that ultrafiltration was an effective pretreatment process for membrane distillation using PTFE membrane. However, more unit operations should be incorporated to enhance the membranes’ integrity.https://doi.org/10.1007/s13201-023-02086-yOilfield-produced waterOily brineMembrane wettingFouling |
| spellingShingle | Amr E. Mansi Sahar M. El-Marsafy Yasser Elhenawy Mohamed Bassyouni Assessing the fouling behavior of PTFE membrane in air-gap membrane distillation against oil-in-brine stabilized emulsions Applied Water Science Oilfield-produced water Oily brine Membrane wetting Fouling |
| title | Assessing the fouling behavior of PTFE membrane in air-gap membrane distillation against oil-in-brine stabilized emulsions |
| title_full | Assessing the fouling behavior of PTFE membrane in air-gap membrane distillation against oil-in-brine stabilized emulsions |
| title_fullStr | Assessing the fouling behavior of PTFE membrane in air-gap membrane distillation against oil-in-brine stabilized emulsions |
| title_full_unstemmed | Assessing the fouling behavior of PTFE membrane in air-gap membrane distillation against oil-in-brine stabilized emulsions |
| title_short | Assessing the fouling behavior of PTFE membrane in air-gap membrane distillation against oil-in-brine stabilized emulsions |
| title_sort | assessing the fouling behavior of ptfe membrane in air gap membrane distillation against oil in brine stabilized emulsions |
| topic | Oilfield-produced water Oily brine Membrane wetting Fouling |
| url | https://doi.org/10.1007/s13201-023-02086-y |
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