(AO)2 SBR과 A2O SBR의 유기물, 질소 및 인의 제거에 관한 연구

• 영문명: A Study on the Organic, Nitrogen and Phosphorus Removal in (AO)2 SBR and A2O SBR
• 발행기관: 한국환경보건학회
• 저자명: 박영식(Young-Seek Park) 우형택(Hyung-Taek Woo) 김동석(Dong-Seog Kim)
• 간행물 정보: 『한국환경보건학회지』제31권 제4호, 340~348쪽, 전체 9쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2005.08.30

영문 초록

Laboratory scale experiments were conducted to compare the performance of two types of sequencing batch reactor (SBR) systems, anoxic-oxic-anoxic-oxic ((AO)2) SBR and anoxic-oxic-anoxic (A2O) SBR on the biological nitrogen and phosphorus removal. Also, the profiles of DO and pH in reactors were used to monitor the biological nutrient removal in two SBRs. The break point in the pH and DO curves at the oxic period coincided with the end of nitrifying activity at about 1 h 30 min in oxic phase, and the change in pH appears to be related to nitrate concentration. The TOC removal efficiency in A2O SBR was higher than that in (AO)2 SBR. The denitrification was completed at the influent period. The 2nd non-aeration and aeration periods were not necessary for the nitrogen and phosphorus removal because of the low influent TOC concentration in this study. The release and uptake of phosphorus in AO2 SBR was much higher than that in (AO)2 SBR. In order to uptake more phosphorus, the 1st aeration period in A2O SBR should be prolonged.

목차

Ⅰ. 서론

Ⅱ. 연구방법

Ⅲ. 결과 및 고찰

Ⅳ. 결론

키워드

biological nutrient removal(BNR) (AO)2 SBR A2O SBR DO pH