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Application of CFD methods to an anaerobic digester: The case of Ontinyent WWTP, Valencia, Spain

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Application of CFD methods to an anaerobic digester: The case of Ontinyent WWTP, Valencia, Spain

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dc.contributor.author López Jiménez, Petra Amparo es_ES
dc.contributor.author Escudero-Gonzalez, Juan es_ES
dc.contributor.author Montoya Martinez, Tatiana es_ES
dc.contributor.author Fajardo Montanana, Vicente es_ES
dc.contributor.author Gualtieri, Carlo es_ES
dc.date.accessioned 2020-09-19T03:33:57Z
dc.date.available 2020-09-19T03:33:57Z
dc.date.issued 2015-09 es_ES
dc.identifier.uri http://hdl.handle.net/10251/150429
dc.description.abstract [EN] tIn recent years, Computational Fluid Dynamics (CFD) methods have increasingly been used to charac-terize hydrodynamics and mass-transport in wastewater treatment units. Despite being a well-knownand widely applied treatment method to stabilize sludge before final disposal, the hydrodynamics andmass transport in the anaerobic digester have been less studied than those of other treatment units.This paper presents the preliminary results of a 3D numerical study, investigating the characteristicsof sludge flow inside the Ontinyent Wastewater Treatment Plant anaerobic digester (Valencia, Spain).An approach based upon the Reynolds Averaged Navier-Stokes (RANS) equation was applied, and clo-sure was obtained using the classical standard k model. In this particular case, a single-phase modelwas applied considering both Newtonian and Non Newtonian behavior for the sludge simulations. Thesesingle-phase preliminary results allowed the occurrence of dead zones to be identified as well as pos-sible shortcuts inside the digester. The analysis was carried out considering the velocities and the flowpatterns inside the digester as well as the sludge volume in the digester that had lower velocities than adetermined settling velocity. The model was calibrated using available experimental pressure and tem-perature data. Finally, as well-mixed conditions are strongly desirable for effective anaerobic digestion,proposals to reduce the volume of dead zones are suggested and discussed. es_ES
dc.description.sponsorship The authors acknowledge the cooperation of the Entidad Publicade Saneamiento de Aguas Residuales. This work has been partially supported by Instituto de la Mediana y Pequena Industria Valenciana (IMPIVA, Project IMIDTF/2011/107) and Fondo Europeo de Desarrollo Regional (FEDER). The authors also acknowledge the help of Vincenzo Morone in the preliminary development of the present research. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation IMPIVA/IMIDTF/2011/107 es_ES
dc.relation.ispartof Journal of Water Process Engineering es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Computational fluid dynamics es_ES
dc.subject Anaerobic digester es_ES
dc.subject Mixing es_ES
dc.subject Velocities profiles es_ES
dc.subject Dead zones es_ES
dc.subject.classification INGENIERIA HIDRAULICA es_ES
dc.title Application of CFD methods to an anaerobic digester: The case of Ontinyent WWTP, Valencia, Spain es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.jwpe.2015.05.006 es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Hidráulica y Medio Ambiente - Departament d'Enginyeria Hidràulica i Medi Ambient es_ES
dc.description.bibliographicCitation López Jiménez, PA.; Escudero-Gonzalez, J.; Montoya Martinez, T.; Fajardo Montanana, V.; Gualtieri, C. (2015). Application of CFD methods to an anaerobic digester: The case of Ontinyent WWTP, Valencia, Spain. Journal of Water Process Engineering. 7:131-140. https://doi.org/10.1016/j.jwpe.2015.05.006 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.cattod.2010.02.004 es_ES
dc.description.upvformatpinicio 131 es_ES
dc.description.upvformatpfin 140 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 7 es_ES
dc.identifier.eissn 2214-7144 es_ES
dc.relation.pasarela S\292029 es_ES
dc.contributor.funder European Regional Development Fund es_ES
dc.contributor.funder Instituto de la Pequeña y Mediana Industria de la Generalitat Valenciana es_ES


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