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코튼볼 여재의 여과 특성 실험 연구 KCI 등재

An experimental study on the filtration test of cotton ball filters

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상하수도학회지 (Journal of the Korean Society of Water and Wastewater)
대한상하수도학회 (Korean Society Of Water And Wastewater)
초록

In order to measure the filtration characteristics of a cotton ball shape filter, the experiments of suspended solids(SS) surrogate material selection and filtration performance have been carried out in this study. Between the two materials of powdered activated carbon(PAC) and powdered red-clay, PAC is more suitable surrogate material in terms of experimental criteria and particle size distribution in the non-point source pollutants removal system. As a result of the filtration experiments with the cotton ball shape filter, the initial headloss was about 8 cm, and the headloss slightly increased over filtration time. The Kozeny-Carman equation was used to analyze the changes of pressure and porosity during the filtration. The initial porosity was calculated as 0.945 and it decreased to 0.936 at the end of design filtration time. As the filtration continued, the SS concentration of the filtered water gradually increased and the SS removal rate gradually decreased. When the SS target removal efficiency is assumed to be 80%, the cumulative SS removal capacity is expected as 28.8 kg/m2. This means the volume loading rate of the cotton ball shape filter can be 115 m3/m2 when the typical SS concentration of non-point source water pollution is assumed as 250 mg/L.

목차
ABSTRACT
 1. 서 론
 2. 실험 재료 및 방법
 3. 실험 결과 및 고찰
  3.1 입도분포와 대체물질 선정 실험
  3.2 무부하 운전에서 여과속도와 손실수두
  3.3 PAC 제거 실험에서 수두 변화
  3.4 PAC 제거율 실험 결과
 4. 결 론
 References
저자
  • 김성홍(조선대학교 토목공학과) | Sunghong Kim (Department of Civil Engineering, Chosun University)
  • 김희준(에스알휴먼테크 기술연구소) | Heejun Kim (SRHuman Tech. Inc. R&D Center)
  • 김동한(서원대학교 환경공학과) | Donghan Kim (Department of Environmental Engineering, Seowon University) Corresponding author