Eco-Efficiency Assessment of Control Actions in Wastewater Treatment Plants
| Autor: | Ramon Vilanova, Montse Meneses, Silvana Revollar, Mario Francisco, Pastora Vega |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
lcsh:Hydraulic engineering
environmental costs Process (engineering) Eco-efficiency 020209 energy Geography Planning and Development Control (management) PID controller 02 engineering and technology 010501 environmental sciences Aquatic Science 01 natural sciences Biochemistry Clarifier lcsh:Water supply for domestic and industrial purposes lcsh:TC1-978 Wastewater treatment plants PID control 0202 electrical engineering electronic engineering information engineering Effluent seasonal effects 0105 earth and related environmental sciences Water Science and Technology lcsh:TD201-500 Environmental engineering wastewater treatment plants sustainability eco-efficiency Seasonal effects Sustainability Environmental costs Environmental science Sewage treatment Performance indicator |
| Zdroj: | Dipòsit Digital de Documents de la UAB Universitat Autònoma de Barcelona Water Volume 13 Issue 5 Water, Vol 13, Iss 612, p 612 (2021) |
| Popis: | This work explores the possibilities of improving the eco-efficiency of Wastewater Treatment Plants (WWTPs) introducing a plant-wide perspective in the formulation of the control strategy. Eco-efficiency goals are contemplated in the analysis of the appropriateness of control actions, considering the seasonal effects of temperature into the decision-making process. Plant-wide control strategy handles are the operation variables of the activated sludge process, the volume of the primary clarifier, and the temperature of the anaerobic digester. Performance is evaluated in terms of energy use, biogas production, effluent quality, emissions to air and soil, considering annual and bimestrial average values of indicators to capture seasonal effect of temperature. The result is a set of possible solutions, obtained from a multi-objective decision-making procedure, consisting on a sequence of control actions applied at different temporal windows that improve the eco-efficiency indicators of the plant. The results obtained when applying the different solutions make evident how the application of plant-wide control strategies is useful to improve performance indicators that represent individual goals, leading to trade-off solutions that describe WWTPs’ eco-efficiency. |
| Databáze: | OpenAIRE |
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