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Flotation Efficiency of the DAF Pump System for Mixing and Coagulation Conditions in Raw Drinking Water
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 Title & Authors
Flotation Efficiency of the DAF Pump System for Mixing and Coagulation Conditions in Raw Drinking Water
Ahn, Kab-Hwan; Lee, Chang-Han;
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This study found that flotation efficiencies for removing algae and micro particles in raw water were optimized on mixing intensity and time of the mixing and flocculation conditions with a continuous DAF system. It is more efficient for mixing intensity at 23.1 and time at 660 s(Gt value : 15246) to float flocculated floc with the raw water in M water treatment plant. Flotation efficiency was more than about 0.9 when operated pressure and A/S ratio were sustained at 5 and up to 0.056 . The continuous DAF system made by the study could be continuously operated for 20 days and sustained not exceeding 4 NTU with raw water with low turbidity(13.4~9.8 NTU).
DAF;Algae;Coagulation;Flocculation;Drinking water;
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강태희, 오병수, 이훈, 변규식, 권순범, 손병용, 안효원, 강준원, 2005, Ozoflotation 공정의 정수처리 적용에 관한 연구, 한국물환경학회지, 21(1), 528-534.

성낙창, 박현석, 이성식, 이용희, 이종팔, 윤태경, 2004,정수처리공정상 염소소독부산물형성에 미치는 오존의 영향, 한국환경과학회, 13(1), 55-59. crossref(new window)

이창한, 안대명, 김성수, 조석호, 안갑환, 2009, DAF 펌프를 이용한 실규모 용존공기부상 공정의 전처리 조건, 대한환경공학회지, 31(1), 58-63.

조항문, 2005, 상수원에 조류 이상 증식시 대응방안, 서울시정개발연구원 연구보고서, 1-120.

환경부, 2004, 국산 DAF pump를 이용한 패키지형 소규모 정수장치 개발, 최종보고서, (주)신신기계, 190-202.

Al-Sammarraee, M., Chan, A., Salim, S. M., Mahabaleswar, U. S., 2009, Large-eddy simulations of particle sedimentation in a longitudinal sedimentation basinof a water treatment plant. Part I: Particle settling performance, Chem. Eng. J., 152(2-3), 307-314. crossref(new window)

Arnold, S. R., Grubb, T. P., Harvey, P. J., 1995, Recent applications of dissolved air flotation pilot studies and full scale design, Wat. Sci. Technol., 31(3-4), 327-340. crossref(new window)

Eades, A., Brignall, W. J., 1995, Counter-current dissolved air flotation/filtration, Wat. Sci. Technol., 31(3-4), 173-178. crossref(new window)

Edzwald, J. K., 1993, Algae, bubbles, coagulants, and dissolved air flotation, Wat. Sci. Technol., 27(10), 67-81.

Markham, L., Porter, M., Schofield, T., 1997, Algae and zooplankton removal by dissolved air flotation at severn trent Ltd. Surface Water Treatment Works. In Schofield, Proceedings of CIWEM Dissolved Air Flotation International Conference, The Lavenham Press, London, 112-119.

Plummer, J. D., Edzwald, J. K., Kelley, M. B., 1995,Removing Cryptosporidium by dissolved-air flotation,J. of AWWA, 87(9), 85-95.

Rebhum, M., Lurie, M., 1993, Control of organic matter by coagulation and floc separation, Wat. Sci. Technol., 27(11), 11-20.

Rubio, J., Souza, M. L., Smith, R. W., 2002, Overview of flotation as a wastewater treatment technique, Miner. Eng., 15(3), 139-155. crossref(new window)

Teixeira, M. R., Rosa M. J., 2006, Comparing dissolved air flotation and conventional sedimentation to remove cyanobacterial cells of Microcystis aeruginosa Part 1: The key operating conditions, Sep. and Purif. Technol., 52(1), 84-94.

Zabel, T., 1985, The Advantages of dissolved-air flotation for water treatment, J. of AWWA, 77(5),42-45.