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Implementation of a global P-recovery system in urban wastewater treatment plants

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Implementation of a global P-recovery system in urban wastewater treatment plants

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dc.contributor.author Bouzas Blanco, Alberto es_ES
dc.contributor.author Martí Ortega, Nuria es_ES
dc.contributor.author Grau, S. es_ES
dc.contributor.author Barat, Ramón es_ES
dc.contributor.author Mangin, Denis es_ES
dc.contributor.author Pastor Alcañiz, Laura es_ES
dc.date.accessioned 2020-04-24T07:13:29Z
dc.date.available 2020-04-24T07:13:29Z
dc.date.issued 2019 es_ES
dc.identifier.issn 0959-6526 es_ES
dc.identifier.uri http://hdl.handle.net/10251/141439
dc.description.abstract [EN] Current wastewater treatment plants (WWTPs) paradigm is moving towards the so-called water resource recovery facilities in which sewage is considered a source of valuable resources. In particular, urban WWTPs are crucial systems to enhance phosphorus (P) recycling. This paper evaluates the implementation of a P-recovery system in Calahorra WWTP combining the operation of a new sludge line configuration coupled to a struvite crystallisation reactor at demonstration-scale. This new configuration consisted in the elutriation in the gravity thickener of the mixed sludge contained in the mixing chamber in order to reduce the phosphate load to the anaerobic digestion. The results indicated that the P available in the primary sludge overflow was nearly five times more than the obtained for the conventional configuration (1.88 vs. 0.39 gP/kg sludge treated), and the uncontrolled P precipitation inside the anaerobic digester was reduced by 43%. Regarding the total P entering the WWTP, 19% of the total P could be recovered with the new configuration proposed in comparison with 9% in the previous conventional configuration. The average recovery efficiency in the crystallisation plant was 86.9 0.4%, yielding a struvite recovery of 8.0 +/- 0.6 kg/d (0.67 +/- 0.04 kg/m(3) fed to the crystalliser). The potential struvite production with the new configuration would be around 41 kg/d (15 t/y) crystallising the thickener supernatant which could be increased up to around 103 kg/d (38 t/y) treating all the P enriched streams (thickener supernatant and centrate streams). The paper demonstrates that WWTPs can contribute to reduce P scarcity, resulting in environmental and economic benefits. (C) 2019 Elsevier Ltd. All rights reserved. es_ES
dc.description.sponsorship This work was co-financed by the European Financial Instrument for the Environment (LIFE +) as part of the PHORWater Project (LIFE12 ENV/ES/000441). The authors also like to acknowledge the support received from Consorcio de Aguas y Residuos de La Rioja and from EDAR del Cidacos (Calahorra). es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Journal of Cleaner Production es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Crystallisation es_ES
dc.subject Global phosphorus recovery es_ES
dc.subject Sludge line management es_ES
dc.subject Struvite es_ES
dc.subject Urban WWTP es_ES
dc.subject.classification TECNOLOGIA DEL MEDIO AMBIENTE es_ES
dc.title Implementation of a global P-recovery system in urban wastewater treatment plants es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.jclepro.2019.04.126 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/NHMRC/Infrastructure Grants/GNT9000441/AU/IRIISS - 2017/ es_ES
dc.rights.accessRights Abierto 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 Bouzas Blanco, A.; Martí Ortega, N.; Grau, S.; Barat, R.; Mangin, D.; Pastor Alcañiz, L. (2019). Implementation of a global P-recovery system in urban wastewater treatment plants. Journal of Cleaner Production. 227:130-140. https://doi.org/10.1016/j.jclepro.2019.04.126 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.jclepro.2019.04.126 es_ES
dc.description.upvformatpinicio 130 es_ES
dc.description.upvformatpfin 140 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 227 es_ES
dc.relation.pasarela S\382867 es_ES


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