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P-recovery in a pilot-scale struvite crystallisation reactor for source separated urine systems using seawater and magnesium chloride as magnesium sources

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P-recovery in a pilot-scale struvite crystallisation reactor for source separated urine systems using seawater and magnesium chloride as magnesium sources

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dc.contributor.author Aguado García, Daniel es_ES
dc.contributor.author Barat, Ramón es_ES
dc.contributor.author Bouzas Blanco, Alberto es_ES
dc.contributor.author Seco Torrecillas, Aurora es_ES
dc.contributor.author Ferrer, J. es_ES
dc.date.accessioned 2019-05-13T20:27:22Z
dc.date.available 2019-05-13T20:27:22Z
dc.date.issued 2019 es_ES
dc.identifier.issn 0048-9697 es_ES
dc.identifier.uri http://hdl.handle.net/10251/120459
dc.description.abstract [EN] Practical recovery of a non-renewable nutrient, such as phosphorus (P), is essential to support modern agriculture in the near future. The high P content of urine, makes it an attractive source for practicing the recovery of this crucial nutrient. This paper presents the experimental results at pilot-plant scale of struvite crystallisation from a source-separated urine stream using two different magnesium sources, namely magnesium chloride and seawater. The latter was chosen as sustainable option to perform P-recovery in coastal areas. Real seawater was used to assess in a more realistic way its efficiency to precipitate P as struvite, since its composition (with noticeable concentration of ions such as Ca2+, SO42¿, Na+, ¿) could lead to the formation of impurities and other precipitates. 0.99¿g of struvite was obtained per litre of urine irrespective of the operational conditions tested. In all tested conditions, precipitation efficiencies exceeded 90% and recovery efficiencies were higher than 87%, with an average struvite crystal size higher than 110¿¿m (and up to 320¿¿m, depending on the experimental conditions) in the harvested struvite samples. Almost pure struvite was obtained when MgCl2 was used as precipitant, while amorphous calcium phosphate and other impurities appeared in the precipitates using seawater as magnesium source. However, the lower settling velocity of the amorphous precipitates in comparison with the struvite precipitates suggests that their separation at industrial scale could be relatively straightforward. es_ES
dc.description.sponsorship This research work was possible thanks to FCC Aqualia participation in INNPRONTA 2011 IISIS IPT-20111023 project (partially funded by The Centre for Industrial Technological Development (CDTI) and supported by the Spanish Ministry of Economy and Competitiveness).
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof The Science of The Total Environment es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Phosphorus recovery es_ES
dc.subject Struvite es_ES
dc.subject Urine es_ES
dc.subject Crystallization es_ES
dc.subject Seawater es_ES
dc.subject.classification TECNOLOGIA DEL MEDIO AMBIENTE es_ES
dc.title P-recovery in a pilot-scale struvite crystallisation reactor for source separated urine systems using seawater and magnesium chloride as magnesium sources es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.scitotenv.2019.03.485 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//IPT-20111023/ES/INVESTIGACION INTEGRADA SOBRE ISLAS SOSTENIBLES. IISIS/ 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 Aguado García, D.; Barat, R.; Bouzas Blanco, A.; Seco Torrecillas, A.; Ferrer, J. (2019). P-recovery in a pilot-scale struvite crystallisation reactor for source separated urine systems using seawater and magnesium chloride as magnesium sources. The Science of The Total Environment. 672:88-96. https://doi.org/10.1016/j.scitotenv.2019.03.485 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.scitotenv.2019.03.485 es_ES
dc.description.upvformatpinicio 88 es_ES
dc.description.upvformatpfin 96 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 672 es_ES
dc.identifier.pmid 30954828
dc.relation.pasarela S\382058 es_ES
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES


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