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DOI : , Vol.19, No.2, 3 ~ 11, 2011
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| Title |
| Application of Physical-Biological Sequential Treatment Systems to Real Textile Wastewater for COD Reduction, Decolorization and Excess Sludge Reduction |
| 강용태 Yong Tae Kang , 송근관 Kune Kwan Song , 한상윤 Sang Yun Han , 손정호 Jeong Ho Sohn , 김연은 Yun Eun Kim |
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| Abstract |
| In this study, the RSFASA system and the RSFBF system as physical-biological process has been used instead of the pretreatment process of the flocculation and sedimentation process of SBR for improvement of effluent qualities. The result showed an optimal condition that the RSFASA system has been controlled as the average temperature of all reactor to above 30~32°c, the concentration of MLSS to 5000±100mg/L and the HRT of anaerobic reactor to 8hr, and the removal ratios of color, SS, CODMn are shown a 70~75%, 79~80% and 86~92% respectively. The treatment effect shows the highest in the case of the controlled system as the selector changed to an anaerobic condition in the RSFBF system and them the total anaerobic EBCT controlled to 6hr, and the removal ratios of color, SS and CODMn are shown a 73~82%, 83~91% and 85~90% respectively. There was no injection amount of coagulants in RSFASA system of pilot-plant used in the study. The excess sludge happened in rapid settling filter by the treatment capacity of 5m3 in daily treatment water amount was 0.44~0.46kg/day and the sludge happened in the bioreactor (Anaerobic-aerobic) was 0.65~0.67kg/day and in the biofilter was 0.55~0.58kg/day. Therefore, the sludge amount was reduced about 31~39% than the existing treatment system(2FSSBR) of N`s textile wastewater treatment cooperative. |
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| Key Words |
| real textile wastewater, pretreatment, biological, biofilteration |
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