Validation of a multi-phase plant-wide model for the description of the aeration process in a WWTP. (1st February 2018)

• Record Type: Journal Article
• Authors: Lizarralde, I.; Fernández-Arévalo, T.; Beltrán, S.; Ayesa, E.; Grau, P.
• Is Part Of: Water research. Volume 129(2018)
• Page Start: 305
• Page End: 318
• Publication Date: 2018-02-01
• Subjects: Liquid-gas transfer modelling -- Mathematical modelling -- Plant-wide modelling -- Water chemistry; Water -- Pollution -- Research -- Periodicals; 363.7394
• DOI: 10.1016/j.watres.2017.10.061
• Languages: English
• ISSNs: 0043-1354

Abstract

Abstract: 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. Graphical abstract: Highlights: Validation of multi-phase plant wide model for liquid-gas transfer description. Aeration system efficiency estimation. Calibration and validation of the aeration process.