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DOI : 10.17640/KSWST.2015.23.2.125 , Vol.23, No.2, 125 ~ 133, 2015
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| Title |
| Comparison of Treatment Characteristics of Anaerobic-Aerobic Activated Sludge and Granular Sludge Processes Coupled with Membrane Filtration Process for Wastewater Reuse |
| 이형옥 Hyeong Ok Lee , 김지연 Ji Yeon Kim , 서석환 Seok Hwan Seo , 김태우 Tae Woo Kim , 현길수 Kil Soo Hyun |
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| Abstract |
| The study was conducted to compare and evaluate the treatment characteristics of anaerobic-aerobic activated sludge process (A2O) with GAC bed (A2O+GAC) and granular sludge sequencing batch reactor (GS-SBR) processes coupled with membrane filtration (MF) process for wastewater reuse. Influent was used real wastewater for A2O+GAC and synthetic wastewater for GS processes. As a result, the GS-SBR+MF system with HRT 4 hr was very effective in reducing particulate matter as well as organic and nutrient removal. Despite influent with high concentration of COD 300 gm/L, the efficiency of GS-SBR+MF system was similar to that of A2O+GAC+MF with HRT 8 hr and the influent of COD <110mg/L. Transmembrane pressure (TMP) of MF process increased in proportion to the increase of filtration velocity of MF, whereas the efficiency of MF on particulate matter removal slightly decreased with the increase of filtration velocity of MFP due to an improper formation of cake layer on membrane surface. Effluent qualities from both system were adequate for water reuse. |
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| Key Words |
| Membrane filtration process, Anaerobic-Aerobic Activated Sludge, GAC, Granular sludge-SBR, TMP, Filtration velocity |
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