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Please use this identifier to cite or link to this item: http://uvadoc.uva.es/handle/10324/26426
Title: Quantitative assessment of energy and resource recovery in wastewater treatment plants based on plant-wide simulations
Authors: Fernández Arévalo, T.
Lizarraldea, I.
Fernández-Polanco Fernández de Moreda, Fernando
Pérez Elvira, Sara Isabel
Garrido, J.M.
Puig, S.
Poch, M.
Grau, P.
Ayesa, E.
Issue Date: 2017
Publisher: Elsevier
Description: Producción Científica
Citation: Water Research, 2017, Volume 118, p. 272-288
Abstract: The growing development of technologies and processes for resource treatment and recovery is offering endless possibilities for creating new plant-wide configurations or modifying existing ones. However, the configurations’ complexity, the interrelation between technologies and the influent characteristics turn decision-making into a complex or unobvious process. In this frame, the Plant-Wide Modelling (PWM) library presented in this paper allows a thorough, comprehensive and refined analysis of different plant configurations that are basic aspects in decision-making from an energy and resource recovery perspective. In order to demonstrate the potential of the library and the need to run simulation analyses, this paper carries out a comparative analysis of WWTPs, from a techno-economic point of view. The selected layouts were (1) a conventional WWTP based on a modified version of the Benchmark Simulation Model No. 2, (2) an upgraded or retrofitted WWTP, and (3) a new Wastewater Resource Recovery Facilities (WRRF) concept denominated as C/N/P decoupling WWTP. The study was based on a preliminary analysis of the organic matter and nutrient energy use and recovery options, a comprehensive mass and energy flux distribution analysis in each configuration in order to compare and identify areas for improvement, and a cost analysis of each plant for different influent COD/TN/TP ratios. Analysing the plants from a standpoint of resources and energy utilization, a low utilization of the energy content of the components could be observed in all configurations. In the conventional plant, the COD used to produce biogas was around 29%, the upgraded plant was around 36%, and 34% in the C/N/P decoupling WWTP. With regard to the self-sufficiency of plants, achieving self-sufficiency was not possible in the conventional plant, in the upgraded plant it depended on the influent C/N ratio, and in the C/N/P decoupling WWTP layout self-sufficiency was feasible for almost all influents, especially at high COD concentrations. The plant layouts proposed in this paper are just a sample of the possibilities offered by current technologies. Even so, the library presented here is generic and can be used to construct any other plant layout, provided that a model is available
Classification: Aguas residuales
Peer Review: SI
DOI: https://doi.org/10.1016/j.watres.2017.04.001
Sponsor: Ministerio de Economía, Industria y Competitividad (Project CTQ2014-53718-R)
Universidad de Gerona (Project MPCUdG2016/137)
Publisher Version: http://www.sciencedirect.com/science/article/pii/S0043135417302567
Language: eng
URI: http://uvadoc.uva.es/handle/10324/26426
Rights: info:eu-repo/semantics/openAccess
Appears in Collections:GTA - Artículos de revista
DEP48 - Artículos de revista

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