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Experimental Application of DAF Hybrid Process to Remove Algae Particles for Conventional Water Treatment Processes and Change of Particle Characteristics  

Kwak, Dong-Heui (Faculty of Environmental and Chemical Engineering, Seonam University)
Yoo, Seung-Joon (Faculty of Environmental and Chemical Engineering, Seonam University)
Publication Information
Korean Chemical Engineering Research / v.46, no.3, 2008 , pp. 516-520 More about this Journal
Abstract
There are many water treatment plants built over couple of decade ago in Korea. For most of those plants, they are required a countermeasure to cope with the deterioration caused from the superannuated facilities and the objective materials change of water treatment from inorganic particles like clay to algae particles due to eutrophication of lake and reservoir. A series of field and laboratory experiments was performed to investigate the feasibility of DAF hybrid process and the variation of particle characteristics by applying the additional DAF unit in conventional water treatment processes. On the basis of this experiments, the DAF was effective as an additive process in filtration basin (DAF-CSF combination processes). Using DAF-CSF combination process, the efficiency of stable particle removal can be achieved to produce the safe drinking water.
Keywords
DAF; Particle Separation; Zeta Potential; Sedimentation; Water Treatment;
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1 Kwak, D.-H., Jung, H.-J., Kim, S.-J., Won, C.-H. and Lee, J.-W., "Separation Characteristics of Inorganic Particles from Rainfalls in Dissolved Air Flotation: A Korean Perspective," Sep. Sci. Technol., 40, 3001-3016(2005)   DOI   ScienceOn
2 Lee, J. W., Yang, T. H., Jung, H. J., Kim, S. J. and Kwak, D. H., "Hybrid Process of Powdered activated Carbon Adsorption and Dissolved Air Flotation for Simultaneous Removal of Algae and Organic Compounds," Proceedings of IWA International Conference on Particle Separation, June, Seoul, 327-332(2005)
3 Zabel, T., "The Advantages of Dissolved-Air Flotation for Water Treatment," Journal of AWWA, 77(5), 42-45(1985)
4 Johnson, D., Farley, M. R. and Youngman, "Removal of Algae by Various Unit Process," Water Research Centre, Technical Report TR45, June(1977)
5 Kwak, D. H., Kim, S. J., Jung, H. J., Won, C. H., Kwon, S. B., Ahn, H. W. and Lee, J. W., "Removal of Clay and Blue-green Algae Particles through Zeta Potential and Particle Size Distribution in Dissolved Air Flotation Process", Water Sci. Techol., 6(1), 95-103(2006)
6 Han, M. Y. and Dockko, S., "Zeta Potential Measurement of Bubbles in DAF Process and its effect in the Removal Efficiency," Journal of Water Supply, 34, 177-182(1999)
7 Okada, K., Akagi, Y., Kogure M. and Yoshioka, N., "Analysis of Particle Trajectories of Small Particles in Flotation when the Particles and Bubbles are Both Charged," Can. J. Chem. Eng., 68, 614-621(1990)   DOI
8 APHA, AWWA and WEF, Standard Method for Examination of Water and Wastewater, 21th edition, Washington D.C. US.(2005)
9 Kwak, D.-H., Lee, J.-W. and Han, M.-Y., "Verification of the Fate of Inorganic Particles by the Population Balance in DAF Process," Journal of Korean Society of Water and Wastewater, 17(2), 517-527(2003)
10 Tambo, N. and Fukushi, K., "A Kinetic Study of Dissolved Air Flotation," Journal of JWWA, 606, 22-30(1985)
11 Bare, W. F., Jones, N. B. and Middlebrooks, E. J., "Algae Removal Using Dissolved Air Flotation," Journal WPCF, 47(1), 153-169(1975)