소수현 이병하 박준홍 차호영 김한수 송경근 2024-01-19T23:02:27Z 2024-01-19T23:02:27Z 2021-09-06 2018-04 1225-7672 https://pubs.kist.re.kr/handle/201004/121515 This study aimed to investigate the feasibility of improving dewaterability and settleability of sewage sludge using coagulation sludge. When mixed with sewage sludge and coagulation sludge at 1:1 ratio, Capillary Suction Time(CST) and Specific Resistance to Filtration(SRF) decreased by about 56% and 68%, respectively. It is found that Total Solids(TS) and Volatile Solids(VS) of mixing sludge are increased by about 59% and 53%, respectively. Also, the turbidity of the mixing sludge supernatant was reduced from 99 to 16 NTU. It is observed that the mixing of sewage sludge and coagulation sludge at 1:1 showed better effect than using Poly-aluminum Chloride(PAC) coagulant at 25 mg/L. Korean 대한상하수도학회 응집슬러지를 이용한 하수슬러지의 탈수성 및 침강성 개선 Improvement of dewaterability and settleability of sewage sludge using coagulation sludge Article 10.11001/jksww.2018.32.2.089 2 상하수도학회지, v.32, no.2, pp.89 - 96 상하수도학회지 32 2 89 96 kci ART002335792 응집슬러지 개량 탈수성 침전성 하수슬러지 Coagulation sludge Conditioning Dewaterability Settleability Sewage sludge