상하수도학회지 (Journal of Korean Society of Water and Wastewater)

  • 제22권4호
  • /
  • Pages.461-466
  • /
  • 2008
  • /
  • 1225-7672(pISSN)
  • /
  • 2287-822X(eISSN)
대한상하수도학회 (The Korean Society of Water and Wastewater)
권호 표지

완속여과 공정에서 전처리 공정 도입에 따른 입자제거 효율평가

Evaluation of particulate removal in slow sand filtration processes

  • 김성수 (한국수자원공사 수자원연구원) ;
  • 배철호 (한국수자원공사 수자원연구원) ;
  • 박노석 (한국수자원공사 수자원연구원) ;
  • 강석형 (한국수자원공사 수자원연구원)
  • 투고 : 2008.01.18
  • 심사 : 2008.08.11
  • 발행 : 2008.08.15
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Because of their simplicity, efficiency, and economy, slow sand filters are appropriate means of water treatment for small water systems. In this study, the effect of filtration velocity and dirty skin (Schmutzdecke) was evaluated on the performance of turbidity removal. Also, removal characteristics of particulate were investigated in the case of the usage of non-woven fabric on the surface of sand and the application of PCF as pretreatment process. Comparative column tests were carried out for the various operation condition. From the result of column tests, filtration velocity had little effect on the turbidity removal rate. The formation of algal biofilm on the surface of media is helpful in turbidity removal, while non-woven fabric is not as effective as expected. The relative contribution of biomass and accumulated particulates to head loss development in slow sand filters requires further study.

키워드

참고문헌

  1. 신승식, 홍진아, 전항배(2003), 완속여과 시스템에서 입자 제거 와 손실수두(headloss)의 관계, 건설기술논문집, Vol.22, No.1, pp.51-58
  2. 전항배, 이영주, 신승식(2003), "표면처리된 완속여과 시스템에 서 입자 및 자연유기물(NOM)의 제거 특성 연구", 대한환경공학회지, Vol.25, No.9, pp.1132-1137
  3. Clark, R.M., Boutin, B.K., Microbiological Removal by filtration Processes, EPA/600/R-01/110, pp.8-1-8-16
  4. Graham, N.J.D., Mbwette, T.S.A.(1991), Protected slow sand filtration: specification of non-woven synthetic fabric layers, Water Supply. Vol.9, No.1, pp.157-164
  5. Roger W. K., and Gary S. L.(2001), "Slow sand filtration", World Water and Environmental Resources Congress, May 20-24, Orlando, Florida, USA, p.483
  6. Poynter, S.F.B., and Slade, J.S.(1997), "The removal of viruses by slow sand filtration", Progress in Water Technology, No.9, pp.75-88
  7. Timms, S., Slade, J.S., Fricker, C.R.(1995), Removal of cryptosporidium by slow sand filtration, Water Science and Technology, Vol.31, No.5, pp.81-84(4)