SBR에서 BNR 슬러지 식종비에 따른 영양염류 제거 특성

• 영문명: Nutrient Removal Characteristics by the Addition Ratio of BNR Sludge in SBR
• 발행기관: 한국환경보건학회
• 저자명: Kim, Dong-Seog Park, Young-Seek
• 간행물 정보: 『1. 한국환경보건학회지』제34권 제1호, 76~85쪽, 전체 10쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2008.02.28

영문 초록

Biological nutrient removal (BNR) sludge was added to a sequencing batch reactor (SBR) in the addition ratios of 0%, 20%, 40%, 50% while observing the variation of nutrient removal characteristics and microorganism groups. When the BNR sludge was added in a ratio over 40%, the characteristics of EBPR (enhanced biological phosphorus removal) was shown at the 27 days. However, a distinct BNR was not shown when the addition ratio of BNR sludge was lower than 40%. The organic removal efficiency were shown as 90% in all SBRs irrespective of the addition ratio of BNR sludge. At the 27 days, the phosphorus removal efficiencies were shown as 40%, 55%, 77% and 69%, respectively, according to the addition ratio of BNR sludge. Overall, efficient nitrification and phosphorus removal was shown when the added BNR sludge ratio was over 40%.

키워드

SBR BNR sludge addition ratio nutrient removal