Volume 1, Issue 1 ( 1(1) 2023)
JGP 2023, 1(1): 1-6 |
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Asadi A. (2023). Application of a high-efficient surface-modified ultrafiltration membrane for activated sludge filtration. JGP. 1(1), 1-6.
URL: http://jgp.yu.ac.ir/article-1-21-en.html
URL: http://jgp.yu.ac.ir/article-1-21-en.html
Department of Applied Chemistry, Faculty of Gas and Petroleum, Yasouj University, Gachsaran, 75918-74831, Iran , azarasadi_88@yahoo.com
Abstract: (1373 Views)
The present study compared the potential performance of a pristine polyacrylonitrile (PAN) ultrafiltration membrane and a surface-modified PAN ultrafiltration membrane in rejecting sludge from an industrial wastewater treatment plant. It should be mentioned that the modified membrane was fabricated based on the optimal surface-modified membrane from a previous investigation in which a mixture of lipase and protease enzymes were immobilized on the PAN membrane surface via a proper linker (a dopamine layer on the membrane surface). Industrial sludge with mixed liquor-suspended solids (MLSS) of 8000 mg/L was passed through a dead-end setup to test and compare the performance of both mentioned membranes. The results show that the hydrophilicity and pure water flux (PWF) of the pristine PAN membrane has been glaringly increased by immobilizing the aforesaid enzymes on the membrane surface. In addition, after 6 cycles of sludge filtration, the surface-modified membrane showed outstanding performance so that the permeate flux did not decrease over filtration time, while the pristine one showed a descending trend in permeate flux after cycle 4. Overall, the reported data from this research corroborates that integrating a mixture of enzymes on membrane surfaces could be considered a proper approach to enhance the antifouling property and permeate flux.
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