Validation of a multi-phase plant-wide model for the description of the aeration process in a WWTP

This paper introduces a new mathematical model built under the PC-PWM methodology to describe the aeration process in a full-scale WWTP. This methodology enables a systematic and rigorous incorporation of chemical and physico-chemical transformations into biochemical process models, particularly for...

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Bibliographic Details
Published in:Water research (Oxford) 2018-02, Vol.129, p.305-318
Main Authors: Lizarralde, I., Fernández-Arévalo, T., Beltrán, S., Ayesa, E., Grau, P.
Format: Article
Language:English
Subjects:
Liquid-gas transfer modelling
Mathematical modelling
Plant-wide modelling
Water chemistry
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Summary:This paper introduces a new mathematical model built under the PC-PWM methodology to describe the aeration process in a full-scale WWTP. This methodology enables a systematic and rigorous incorporation of chemical and physico-chemical transformations into biochemical process models, particularly for the description of liquid-gas transfer to describe the aeration process. The mathematical model constructed is able to reproduce biological COD and nitrogen removal, liquid-gas transfer and chemical reactions. The capability of the model to describe the liquid-gas mass transfer has been tested by comparing simulated and experimental results in a full-scale WWTP. Finally, an exploration by simulation has been undertaken to show the potential of the mathematical model. [Display omitted] •Validation of multi-phase plant wide model for liquid-gas transfer description.•Aeration system efficiency estimation.•Calibration and validation of the aeration process.
ISSN:0043-1354
1879-2448
DOI:10.1016/j.watres.2017.10.061