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http://dx.doi.org/10.1007/s11814-008-0219-7

Design considerations and economics of different shaped surface aeration tanks  

Rao, Achanta Ramakrishna (Civil Engineering Department, Indian Institute of Science)
Kumar, Bimlesh (Civil Engineering Department, Indian Institute of Science)
Publication Information
Korean Journal of Chemical Engineering / v.25, no.6, 2008 , pp. 1338-1343 More about this Journal
Abstract
This paper deals with the design considerations of surface aeration tanks on two basic issues of oxygen transfer coefficient and power requirements for the surface aeration system. Earlier developed simulation equations for simulating the oxygen transfer coefficient with theoretical power per unit volume have been verified by conducting experiments in geometrically similar but differently shaped and sized square tanks, rectangular tanks of length to width ratio (L/W) of 1.5 and 2 as well as circular tanks. Based on the experimental investigations, new simulation criteria to simulate actual power per unit volume have been proposed. Based on such design considerations, it has been demonstrated that it is economical (in terms of energy saving) to use smaller tanks rather than using a bigger tank to aerate the same volume of water for any shape of tanks. Among the various shapes studied, it has been found that circular tanks are more energy efficient than any other shape.
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1 A. R. K. Rao, B. Kumar and A. K. Patel, Water Qual. Res. J. Canada, 42, 26 (2007)   DOI
2 I. Y. Kim and S. D. Kim, Korean J. Chem. Eng., 7, 47 (1990)   DOI
3 C. J. Tzeng, R. Iranpour and M.K. Stenstrom, J. Environ. Engrg., 129, 402 (2003)   DOI   ScienceOn
4 G.M. Wesner, L. J. Ewing, T. S. Lineck and D. J. Hinrichs, Energy conservation in municipal wastewater treatment, EPA-430/9-77-01 1, NTIS No. PB81-165391, U.S. EPA Report, Washington, DC (1977)
5 K. Saravanan and J.B. Joshi, Can. J. Chem. Eng., 74, 16 (1996)   DOI
6 A.W. Nienow and J. J. Ulbrecht, Mixing of liquids by mechanical agitation, Gordon and Breach Sci. Publications, New York (1985)
7 B. Deng and C. N. Kim, Korean J. Chem. Eng., 20, 685 (2003)   DOI   ScienceOn
8 W.K. Lewis and W.G. Whitman, Ind. Eng. Chem., 16, 1215 (1924)   DOI
9 Metcalf & Eddy, Waste water engineering: Treatment disposal and reuse, Tata McGraw-Hill, New Delhi (2004)
10 V. Mahendraker, D. S. Mavinic and J.K. Hall, J. Environ. Engg., 131, 692 (2005)   DOI   ScienceOn
11 W. S. Hu, J. Meier and D. I. C. Wang, Biotechnol. Bioeng., 27, 122 (1986)
12 J. L. Vasel, Contribution a l'etude des transferts d'oxygène en gestion des eaux, Ph.D. thesis, Fondation Universitaire Luxemourgeoise, Luxembourg, Arlon (1988)
13 G.H. Vogel, Process development: From the initial idea to the chemical production plant, Wiley-VCH, Weinheim (2006)
14 S. L. Udaya, K.V.N. S. Sharma and A.R.K. Rao, Proc. Symp. on Environmental Hydraulics, University of Honkong, 1577 (1991)
15 R.B. Banks, L. R. Sally and C. Polprasert, J. Environ. Engg., 109, 232 (1983)   DOI
16 H. J. Hwang and M. K. Stenstrom, J. WPCF, 57, 12 (1985)
17 Standard methods for the examination of water and wastewater, 16th Edition, American Public Health Association, AWWA, WCPA, Washington, D.C. (1985)
18 WEF and ASCE Manual of practice for water pollution control, Aeration a waste water treatment process, Water Environment Federation, Alexandria, Va., and ASCE, New York (1988).
19 A. R.K. Rao, B.V. B. Laxmi and K. S. Narasiah, Water Qual. Res. J. Canada, 39, 273 (2004)
20 A. R. K. Rao, J. Environ. Engg., 125, 215 (1999)   DOI   ScienceOn
21 J.R. McWhirter, J. Chern and J.C. Hutter, Ind. Eng. Chem. Res., 34, 2644 (1995)   DOI   ScienceOn
22 P. J. Roeleveld and M. C.M. Van Loosdrecht, Water Sci. Technol., 45, 77 (2002)   PUBMED
23 A.L. Cook and C. C. Carr, Elements of electrical engineering, Wiley, New York (1947)
24 J.A. Gilbertson, A. Sen, L.A. Behie and M.K. Kallos, Biotechnol. Bioeng., 94, 783 (2006)   DOI   ScienceOn
25 P.C. Krause, O. Wasynczuk and S.D. Sudhoff, Analysis of electric machinery and drive systems, Wiley-IEEE Press (2002)
26 R. L. King, R. A. Hiller and G. B. Tatterson, AIChE J., 34, 506 (1988)   DOI   ScienceOn