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Updated: Feb 18, 2026

Mesocosm-Scale Constructed Wetland Design for Wastewater Treatment
Published on: May 2, 2025
Validation of a multi-phase plant-wide model for the description of the aeration process in a WWTP
I Lizarralde1, T Fernández-Arévalo2, S Beltrán1
1Ceit and Tecnun (University of Navarra) Manuel de Lardizábal 15, 20018 San Sebastián, Spain.
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.
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