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Development of a revised metabolic model for the growth of phosphorus-accumulating organisms

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Abstract:

The performance of a metabolic model for biological phosphorus removal (BPR) and that of a model based on continuous-flow data were compared. Analysis showed that the metabolic model does not correctly simulate the behavior of BPR systems. The reason was found to be the kinetic expressions forming the basis of the model. A new set of kinetic expressions was selected, and a revised metabolic model was tested. It was shown that the revised metabolic model is capable of describing reported data using a single set of stoichiometric and kinetic parameters (except for the maintenance coefficient). This finding suggests that the model may be broadly applicable to a wide range of applications. A model for the dependence of the ratio of phosphorus released per acetate taken up (P/Hac ratio) on the pH of the medium was also developed, and this relationship was found to be linear.

Keywords: ACETATE UPTAKE; ACTIVATED SLUDGE MODEL NO.2; BIOLOGICAL PHOSPHORUS REMOVAL; KINETICS; METABOLIC MODEL; PH; PHOSPHORUS RELEASE; PHOSPHORUS-ACCUMULATING ORGANISMS; REVISED METABOLIC MODEL

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/106143098X126900

Publication date: January 1, 1998

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  • Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
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