Research Article
Apr 1974
Nitrification Rate in Biological Processes
Publication: Journal of the Environmental Engineering Division
Volume 100, Issue 2
Abstract
At least four reaction rate equations have been proposed to describe the process of nitrification. A more precise understanding of this reaction rate is needed to optimize the design of the process. The proposed equations which include the Monod, zero-order, first-order, and autocatalytic growth are reviewed. An experimental study is described which was designed to better understand the process reaction rate. The study involved a thin film biological reactor fed with a synthetic medium developed for the study of nitrification. This simple model was used to provide flexibility and control over such parameters as hydraulics, slime layer thickness, contact time, and wall growth problems. The rate determination was developed by varying both initial concentration and contact time. Results indicate that the reaction rate is zero-order between an initial ammonia nitrogen concentration of 2.5 mg/l - 673 mg/l.
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Published In
Journal of the Environmental Engineering Division
Volume 100 • Issue 2 • April 1974
Pages: 409 - 422
Copyright
© 1974 American Society of Civil Engineers.
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Published in print: Apr 1974
Published online: Feb 11, 2021
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Ching-San Huang, AM.ASCE
Metcalf and Eddy, Inc., Boston, MA, USA
Ninnian E. Hopson, M.ASCE
Asst. Prof.; Formerly, Dept. of Civ. Engrg., State Univ. of New York at Buffalo, Buffalo, NY; Havens & Emerson, Ltd., Cleveland, OH, USA
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
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.
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.