Abstract
The focus of this study is on the instrumentation used in wastewater treatment stations, with the ultimate goal of creating virtual sensors in the future. In this stage, a specific correlation case is being examined to determine the appropriate and sufficient variables needed to predict chemical oxygen demand (COD) in a wastewater treatment plant. Initially, four methods are used to select the features with all the variables being monitored. This is followed by applying three regression techniques to evaluate the performance of the previously selected variables. All cases yielded a satisfactory prediction of COD, which indicates that virtual sensors can be implemented in the future with a high degree of predictability and effectiveness.
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Acknowledgement
Míriam Timiraos’s research was supported by the “Xunta de Galicia” (Regional Government of Galicia) through grants to industrial PhD (http://gain.xunta.gal/), under the “Doutoramento Industrial 2022” grant with reference: 04_IN606D_2022_ 2692965.
Álvaro Michelena’s research was supported by the Spanish Ministry of Universities (https://www.universidades.gob.es/), under the “Formación de Profesorado Universitario” grant with reference: FPU21/00932.
CITIC, as a Research Center of the University System of Galicia, is funded by Consellería de Educación, Universidade e Formación Profesional of the Xunta de Galicia through the European Regional Development Fund (ERDF) and the Secretaría Xeral de Universidades (Ref. ED431G 2019/01).
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Timiraos, M. et al. (2023). Comparative Study of Wastewater Treatment Plant Feature Selection for COD Prediction. In: García Bringas, P., et al. 18th International Conference on Soft Computing Models in Industrial and Environmental Applications (SOCO 2023). SOCO 2023. Lecture Notes in Networks and Systems, vol 749. Springer, Cham. https://doi.org/10.1007/978-3-031-42529-5_15
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