| Abstract |
| In this study, the performance of membrane bioreactor (MBR) using a dead-end stirrer cell was conducted to investigate the removal of solid and organic matters from real mixed liquor in aeration tank and membrane fouling. Influent water qualities were on average 30±2 NTU, 36±0.5 mgTOC/L, 22±0.1 mgT-N/L, and 5±0.05 mgT-P/L, 4500±20 mgMLSS/L, respectively. As a result, the membrane biofiltration achieved higher efficiency of more than 90% for solid and organic matters except T-N having lower efficiency less than 35% regardless of permeate flux. An increase in permeate flux resulted in a rise in transmembrane pressure (TMP) and total membrane filtration resistance. This suggests that both lower permeate flux and higher solid retention time are needed to improve membrane filtration resistance and to enhance the efficiency of nitrogen removal by providing nitrification and denitrification in the reactor. |
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| Key Words |
| Membrane bioreactor, biofiltration, membrane fouling, permeate flux, transmembrane pressure, membrane filtration resistance. |
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