Abstract
The effect of hourly load change on the treatment characteristics in an anaerobic-aerobic activated sludge process was compared for two types of variation. When the variation of wastewater concentration or flow rate was applied to the treatment unit according to normal distribution function like effluent pattern in actual life, the treatment system gave relatively stable and successful removal of nitrogen and phosphorus compounds. When the mass flow rate of nitrogen applied to the treatment unit was equal, the performance of the present process was almost same regardless of load variation mode. The simulation of treatment behavior was carried out successfully by using the kinetic equations for sludge floc and the reactor models which considered the treatment unit as a completely mixed tank.
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References
Argaman, Y. and Brenner, A.,“Single-sludge Nitrogen Removal Modeling and Experimental Results,”Jour. Water Pollut. Control Fed.,58, 853 (1986).
Barnard, J. L.,“Biological Denitrification,”Jour. Water Pollut. Control Fed.,72, 705 (1973).
Barth, E. F. and Stensel, H. D.,“International Nutrient Control Technology for Municipal Effluents,”Jour. Water Pollut. Control Fed.,53, 1691 (1981).
Brodisch, K. E. U.,“Interaction of Groups of Microorganisms in Biological Phosphate Removal,”Wat. Sci. Tech.,17(11/12), 89 (1985).
Buchan, L.,“Possible Biological Mechanism of Phosphorus Removal,”Wat. Sci. Tech.,15, 87 (1983).
Dahab, M. F. and Lee, Y. W.,“Nitrate Removal from Water Supplies Using Biological Denitrification,”Jour. Water Pollut. Control Fed.,60,1670 (1988).
Deinema, M. H., Van Loodsdrecht, M. and Scholten, A.,“Some Physiological Characteristics orAcinetobacter spp. Accumulating Large Amounts of Phosphate,”Wat. Sci. Tech.,17(11/12), 119 (1985).
Fush, G. W. and Chen, M.,“Microbiological Bases of Phosphate Removal in the Activated Sludge Process for the Treatment of Wastewatef,”Microbial Ecology,2, 119 (1975).
Hano, T., Matsumoto, M. and Kuribayashi, K.,“Kinetics of Nitrogen and BOD Removal in Biofilm Processes,” Biochemical Engineering for 2001, Springer-Verlag, 819 (1992a).
Hano, T., Matsumoto, M., Kuribayashi, K. and Hatate, Y.,“Biological Nitrogen Removal in a Bubble Column with a Draught Tube,”Chem. Eng. Sci.,47(13,14), 3737 (1992b).
Hashimoto, S.,“New Activated Sludge Processes,” Gihoudou Pub. (1989).
Lee, J. H., Nam, H. U. and Park, T. J.,“Removal of Nitrogen and Phosphorus Using a New Biofilm Process,”Korean J. Chem. Eng.,16, 303 (1999).
Lee, K. H., Lee, J. H. and Park, T. J.,“Simultaneous Organic and Nutrient Removal from Municipal Wastewater by BSACNR Process,”Korean J. Chem. Eng.,15, 9(1998).
Lee, M. G., Suh, K. H. and Hano, T.,“Treatment Characteristics of Wastewater with Flow Rate Variation in Anaerobic-Aerobic Activated Sludge Process,”Environ. Sci.,1(1), 11 (1997).
Nicholls, A. and Osborne, D. W.,“Bacterial Stress: Pre-requisite for Biological Removal of Phosphorus,”J. Wat. Pollut. Control Fed.,51, 557 (1979).
Rittmann, B. E. and Langeland, W. E.,“Simultaneous Denitrification with Nitrification in Single Channel Oxidation Ditches,”Jour. Water Pollut. Control Fed.,57, 300 (1985).
Tabak, H. H., Quave, S. A., Mashni, C. I. and Barth, E. E.,“Biodegradability Studies with Organic Pollutant Compounds,”Jour. Water Pollut. Control Fed.,53(10), 1503 (1981).
Tom, N. F. Y., Wong, Y. S. and Leung, G.,“Significance of External Carbon Sources on Simultaneous Removal of Nutrients from Wastewater,”Water Science Technology,26, 1047 (1992).
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Lee, MG., Hano, T. Effects of hourly load variation on treatment characteristics in anaerobic-aerobic activated sludge process. Korean J. Chem. Eng. 18, 178–183 (2001). https://doi.org/10.1007/BF02698456
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DOI: https://doi.org/10.1007/BF02698456