Hydroxyl-eggshell: a novel eggshell byproduct highly effective to recover phosphorus from aqueous solutions

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorRibeiro, Ivan Célio Andrade-
Autor(es): dc.creatorTeodoro, Jéssica Cristina-
Autor(es): dc.creatorGuilherme, Luiz Roberto Guimarães-
Autor(es): dc.creatorMelo, Leônidas Carrijo Azevedo-
Data de aceite: dc.date.accessioned2026-02-09T12:55:33Z-
Data de disponibilização: dc.date.available2026-02-09T12:55:33Z-
Data de envio: dc.date.issued2020-08-31-
Data de envio: dc.date.issued2020-08-31-
Data de envio: dc.date.issued2020-11-19-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/42768-
Fonte completa do material: dc.identifierhttps://www.sciencedirect.com/science/article/abs/pii/S0959652620330870#!-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1171030-
Descrição: dc.descriptionEfficient recovery and reuse systems are an ever-increasing challenge for global phosphorus security. This work presents a standard and straightforward methodology to produce a novel eggshell byproduct with a high P-recovery capacity. The material was obtained from chicken eggshells after reaction with hydrochloric acid and sodium hydroxide solutions and named as Hydroxyl-Eggshell (ES-OH). Batch experiments were conducted to investigate the effects of ES-OH doses, contact time, and initial P concentration on the recovery process. Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy with energy dispersive X-ray spectrometry (SEM-EDS), and X-ray diffraction (XRD) were used to characterize the material before and after P reaction. The kinetics study showed that the pseudo-second-order model described well the process. The maximum P recovery capacity was 328.9 mg g−1, which is higher than that found for other materials derived from eggshells. FTIR, SEM-EDS, and XRD confirmed that the primary process of P recovered by ES-OH is via precipitation as hydroxyapatite. Finally, a pot experiment confirmed that the P-loaded ES-OH was as effective as triple superphosphate (TSP) on grass yield with the advantage of maintaining nearly four-fold more available P and higher soil pH than TSP after cultivation. The results presented in this work showed that ES-OH is a promising material for P recovery from aqueous solution, forming a material with great potential to be used in agriculture as an alternative phosphate fertilizer.-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceJournal of Cleaner Production-
Palavras-chave: dc.subjectHydroxyapatite-
Palavras-chave: dc.subjectWaste valorization-
Palavras-chave: dc.subjectCircular economy-
Palavras-chave: dc.subjectPhosphate fertilizer-
Palavras-chave: dc.subjectHidroxiapatita-
Palavras-chave: dc.subjectValorização de resíduos-
Palavras-chave: dc.subjectEconomia circular-
Palavras-chave: dc.subjectFertilizante fosfatado-
Título: dc.titleHydroxyl-eggshell: a novel eggshell byproduct highly effective to recover phosphorus from aqueous solutions-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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