N. N. Niam and S.M. Anisuzzaman and Chiam, Chel Ken and Murni Sundang and Rachel Fran Mansa and A. R. Razali and Noor Maizura Ismail (2025) Effect of coating concentration on gas separation performance of polysulfone mixed matrix membrane for biomethane recovery from wastewater. Journal of Applied Membrane Science & Technology, 29. pp. 99-109. ISSN 2600-9226
![[img]](https://eprints.ums.edu.my/style/images/fileicons/text.png) |
Text
FULL TEXT.pdf Restricted to Registered users only Download (717kB) | Request a copy |
Abstract
Anaerobic membrane bioreactor (AnMBR) provides a range of benefits which include high performance in extracting organic matter and energy production in the form of biogas. In this study, performance of mixed matrix membrane (MMM) to recover biomethane from wastewater was studied. Polymer matrix of polysulfone (Psf) incorporated with different inorganic fillers, halloysite nanotubes (HNT) and activated carbon (AC). Different concentration (3%, 4% and 5%) of MMM’s polydimethylsiloxane (PDMS) coating were examined by using scanning electron microscopy (SEM-EDX) and gas permeation tests. The morphological structures as well as permeability and selectivity of MMM towards carbon dioxide (CO₂) and methane (CH₄) were investigated. SEM analysis showed that increasing the concentration increases the thickness of the coated surface of the membrane. For MMMs-HNT, the thickness of the top layer increased 29.1% from the uncoated membrane to the highest concentration of PDMS coating while MMMs-AC showed the thickness of the membrane increased by 64.7%. The EDX results showed that there is 46% increase and 9.63% increased of silicon composition for both MMMs-HNT and MMMs-AC. For the gas separation performance, PDMS coated MMMs showed lower permeability but higher selectivity than uncoated MMMs. The highest selectivity of the membrane can be observed in 3wt% PDMS coated MMMs-HNT which is 15.83 with CO₂ and CH₄ permeance of 0.76 and 0.05 GPU, respectively.
| Item Type: | Article |
|---|---|
| Keyword: | Mixed matrix membrane, Halloysite nanotubes, Activated carbon, Membrane bioreactor, Gas separation |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering > TD1-1066 Environmental technology. Sanitary engineering > TD511-780 Sewage collection and disposal systems. Sewerage T Technology > TP Chemical technology > TP1-1185 Chemical technology > TP155-156 Chemical engineering |
| Department: | FACULTY > Faculty of Engineering |
| Depositing User: | SITI AZIZAH BINTI IDRIS - |
| Date Deposited: | 03 Jul 2025 10:27 |
| Last Modified: | 03 Jul 2025 10:27 |
| URI: | https://eprints.ums.edu.my/id/eprint/44282 |
Actions (login required)
 |
View Item |