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dc.contributor.authorMurcia-Salvador, Ainoa
dc.contributor.authorPellicer, José Antonio
dc.contributor.authorGabaldón, José Antonio
dc.contributor.authorRodríguez López, María Isabel
dc.contributor.authorNúñez Delicado, Estrella
dc.contributor.authorGómez López, Vicente Manuel
dc.date.accessioned2020-10-22T15:14:27Z
dc.date.available2020-10-22T15:14:27Z
dc.date.issued2020-01
dc.identifier.issn1996-1944
dc.identifier.urihttp://hdl.handle.net/10952/4583
dc.description.abstractEggshell, a waste material from food manufacturing, can be used as a potential ecofriendly adsorbent for the elimination of textile dyes from water solutions. The adsorption process was evaluated varying factors such as initial dye load, contact time, pH, quantity of adsorbent, and temperature. The initial dye load (Direct Blue 78) was in the range of 25–300 mg/L. The kinetics of adsorption were analyzed using di erent models, such as pseudo-first-order, pseudo-second-order, and intraparticle di usion model. Also, the experimental data at equilibrium were studied using Freundlich, Langmuir, and Temkin isotherms. The kinetics followed pseudo-second-order, then pseudo-first-order, and finally the model of intraparticle di usion. The results obtained for data at equilibrium follow the order: Freundlich > Langmuir > Temkin. The adsorption equilibrium showed a maximum capacity of adsorption (qmax) of 13 mg/g at pH 5, and using 0.5 g of eggshell. Dye adsorption was enhanced with increasing temperatures. The thermodynamic study revealed the spontaneity and endothermic nature of the adsorption process. The desorption study shows that the eggshell could be reused in di erent adsorption/desorption cycles. A novel advanced oxidation process could degrade more than 95% of the dye. The results show that eggshell is a waste material useful to remove hazardous dyes from wastewater, which may alleviate the environmental impact of dyeing industries.es
dc.language.isoenes
dc.publisherMDPIes
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectAdsorptiones
dc.subjectEggshelles
dc.subjectDirect Blue 78es
dc.subjectKineticses
dc.subjectIsothermses
dc.subjectPulsed lightes
dc.titleEgg By-Products as a Tool to Remove Direct Blue 78 Dye from Wastewater: Kinetic, Equilibrium Modeling, Thermodynamics and Desorption Propertieses
dc.typearticlees
dc.rights.accessRightsopenAccesses
dc.journal.titleMaterialses
dc.volume.number13es
dc.description.disciplineCiencias de la Alimentaciónes
dc.identifier.doi10.3390/ma13061262es


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional