Research Article
Jun 1963
Free Energy as a Parameter in Biological Treatment
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VIEW THE REPLYAuthors: J. A. Servizi, AM.ASCE, and R. H. Bogan, M.ASCEAuthor Affiliations
Publication: Journal of the Sanitary Engineering Division
Volume 89, Issue 3
Abstract
A basic approach to the problem of activated sludge synthesis and substrate oxidation has been taken by using the thermodynamic concept that free energy change is a measure of the maximum work of which a process is capable. As a consequence, synthesis is proportional to substrate free energy of oxidation. The relationship was verified experimentally and by means of computations using data from the literature. Calculations also showed synthesis as being proportional to substrate COD. Finally, derivation indicated that the fraction of substrate oxidized is a function of the ratio of the COD to the carbon content of the substrate.
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Published In
Journal of the Sanitary Engineering Division
Volume 89 • Issue 3 • June 1963
Pages: 17 - 40
Copyright
© 1963 American Society of Civil Engineers.
History
Published in print: Jun 1963
Published online: Feb 12, 2021
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J. A. Servizi, AM.ASCE
Graduate Student and U. S. Public Health Service Trainee, Dept. of Civ. Engrg., Univ. of Washington, Seattle, Wash.
R. H. Bogan, M.ASCE
Assoc. Prof., Civ. Engrg. Dept., Univ. of Washington, Seattle, Wash.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.