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DOI : , Vol.22, No.3, 31 ~ 38, 2014
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| Title |
| Assessment of Membrane Pore Size Influence for Secondary Treatment of Effluent Water in Drinking Water Treatment Plant |
| 유영범 Young Beom Yu , 안효원 Hyo Won Ahn , 문경훈 Kyung Hoon Moon , 권순범 Soon Buhm Kwon |
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| Abstract |
| A surveillance on effluent water and a water quality standard of effluent water are being tightened. As the turbidity level is high at a water treatment plant, the efficiency of a effluent water treatment plant decreases. Therefore, it is difficult to manage water quality. In this study, the membrane filtration process for effluent water treatment was evaluated. When the UV254 of supernatant in the thickener was high, the trans-membrane pressure increased. When the coagulant was injected, the trans-membrane pressure decreased. The trans-membrane pressure decreased more when the supernatant in the thickener was treated mixing with backwash waste than when the supernatant in the thickener was treated singly. The trans-membrane pressure reached the limit in the short time at flux of 1.5 m/day. However, it was possible to operate the process for a long period at flux of 0.5 m/day. When the particles in the effluent water are smaller than the membrane pore, irreversible membrane fouling occurred. It lead to increase the trans-membrane pressure rapidly. |
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| Key Words |
| Effluent water, Membrane filtration, Pore size, Trans-membrane pressure, Thickener |
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