A model-based framework for controlling activated sludge plants
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2024-05-15
Major/Subject
Mcode
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Language
en
Pages
16
Series
Chemical Engineering Journal, Volume 488
Abstract
This work presents a general framework for the advanced control of a common class of activated sludge plants (ASPs). Based on a dynamic model of the process and plant sensors and actuators, we design and configure a highly customisable Output Model-Predictive Controller (Output MPC) for the flexible operation of ASPs as water resource recovery facilities. The controller consists of a i) Moving-Horizon Estimator for determining the state of the process, from plant measurements, and ii) a Model-Predictive Controller for determining the optimal actions to attain high-level operational goals. The Output MPC can be configured to satisfy the technological limits of the plant equipment, as well as operational desiderata defined by plant personnel. We consider exemplary problems and show that the framework is able to control ASPs for tasks of practical relevance, ranging from wastewater treatment subject to normative limits, to the production of an effluent with varying nitrogen content, and energy recovery.Description
Publisher Copyright: © 2024 The Authors
Keywords
Activated sludge process, Model predictive control, Moving horizon estimation, Process control and automation, Wastewater treatment plant
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Citation
Neto, O B L, Mulas, M & Corona, F 2024, ' A model-based framework for controlling activated sludge plants ', Chemical Engineering Journal, vol. 488, 150750 . https://doi.org/10.1016/j.cej.2024.150750