염색폐수의 COD저감, 색도제거와 잉여슬러지감량을 위한 물리-생물학적 연속처리시스템의 적용

• Published in: 한국수처리학회지, 19(2) pp. 3 - 10
• Main Authors: 강용태, 송근관, 한상윤, 손정호, 김연은
• Format: Journal Article
• Language: Korean
• Published: 한국수처리학회 30.04.2011
• Subjects: 토목공학
• ISSN: 1225-7192; 2289-0076

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. 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. KCI Citation Count: 2