간헐포기 소화 슬러지의 고분자 응집제에 의한 개량과 입도분포변화에 관한 연구

• 영문명: A Study on the Conditioning with Polymer and the ParticleSize Distribution of Intermittent Aerobic Digestion Sludge
• 발행기관: 한국환경보건학회
• 저자명: 김희준(Hee Jun Kim) 김성홍(Seong Hong Kim) 최재성(Jae Seong Choi)
• 간행물 정보: 『1. 한국환경보건학회지』제30권 제3호, 253~258쪽, 전체 6쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2004.09.30

영문 초록

Synthetic organic polyelectrolytes can be used to condition sludges to enhance their dewaterability. Intermittent aerobic digestion is an useful digestion technology and has many advantages like neutral pH, low installation cost and easiness to operation. The objectives of this study were to investigate the dewaterability of intemittent aerobic digestion sludge and to find the relationship between dewaterability and particle size distribution change under the conditioning of intermittent aerobic digestion sludge by cationic polyelectrolyte. Digested sludge from intermittent aerobic digestion was used and cationic polyacrylamide polymer was added as a conditioner. CST(capillary suction time), TTF(time-to-filtration) were tested as a dewaterability index and the number of particle distribution was analyzed using particle size analyzer. The results indicate that cationic polyelectrolytes is useful to enhance dewaterability of intermittent aerobic digestion sludge. Mean particle diameter was increased as polymer dosage increased and its value was reached up to 100 mm on the condition of optimal cationic polymer dosage. CST and TTF are well correlated with mean particle diameter when the weighting order is 1.7. By the optimal conditioning with cationic polymer, particles in the filtrate are also reduced significantly and this means that conditioning is helpful to main stream by reducing SS loading from return flow.

목차

Ⅰ. 서론

Ⅱ. 실험 및 방법

Ⅲ. 결과 및 고찰

Ⅳ. 결론

키워드

Intermittent aerobic digestion Particle size distribution Conditioning Dewaterability Polymer