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dc.contributor.authorFernández Delgado, Marina
dc.contributor.authorAmo Mateos, Esther del
dc.contributor.authorLucas Yagüe, Susana 
dc.contributor.authorGarcía Cubero, María Teresa 
dc.contributor.authorCoca Sanz, Mónica 
dc.date.accessioned2021-06-07T11:56:41Z
dc.date.available2021-06-07T11:56:41Z
dc.date.issued2020
dc.identifier.citationJournal of Cleaner Production, 2020, vol. 265, p. 121805es
dc.identifier.issn0959-6526es
dc.identifier.urihttps://uvadoc.uva.es/handle/10324/46789
dc.descriptionProducción Científicaes
dc.description.abstractNowadays, the extensive use of inorganic fertilizers has increased the salinity of soil and decreased optimal assimilation of nutrients by crops. Organic carbon is basic for controlling the nutrient level in soil and nutrient assimilation by plants. The objective of this study was to develop a process for recovering organic carbon using compost from mixed municipal waste as raw material. The use of fertilizers from organic residues could replace mineral fertilizers, contributing to resources preservation and recycling of organic matter. In this way, a Taguchi experimental design was proposed to select the most suitable operating conditions for recovering organic carbon from the organic residue. The variable factors were the solid:liquid ratio, type of solvent, extraction time, and particle size. The optimum extraction conditions were: solid:liquid ratio 1:2.5, 1 M potassium hydroxide (KOH), 72 h, and particle size > 1 mm. Subsequent experiments concluded that separating the mixed municipal waste compost (MMWC) by fractions of different particle sizes before extraction process is not recommended. Under these conditions, the total organic carbon concentration in the extract was 6.9% w/w, of which the content of humic acids was 47.6%. On the other hand, the extract complies with the legal requirements of Regulation (EU) 2019/1009 for fertilizing products regarding composition. Germination tests were carried out to analyze the phytotoxic effects of organic extracts. Finally, a preliminary economic study showed the viability for a production plant with a capacity of 300 kg/h of MMWC. The production of liquid fertilizer was 200 L per 100 kg of dry compost, and the estimated sale price to obtain economic benefits was 1 €/L of fertilizer for a plant whose total investment cost was 1,600 k€.es
dc.format.mimetypeapplication/pdfes
dc.language.isoenges
dc.publisherElsevieres
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subject.classificationCarbono orgánicoes
dc.subject.classificationCompost de residuos mixtoses
dc.subject.classificationFertilizanteses
dc.titleRecovery of organic carbon from municipal mixed waste compost for the production of fertilizerses
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.holder© 2020 Elsevieres
dc.identifier.doi10.1016/j.jclepro.2020.121805es
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0959652620318527es
dc.identifier.publicationfirstpage121805es
dc.identifier.publicationtitleJournal of Cleaner Productiones
dc.identifier.publicationvolume265es
dc.peerreviewedSIes
dc.description.projectINTERREG V-569A Spain-Portugal (POCTEP) 2014-2020 and EU-FEDER (project 0119_VALORCOMP_2_P)es
dc.description.projectJunta de Castilla y León y EU-FEDER (UIC 572129) y (CLU2017-09)es
dc.description.projectJunta de Castilla y León (E-47-2019-0114592)es
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersiones
dc.subject.unesco23 Químicaes
dc.subject.unesco33 Ciencias Tecnológicases


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