Continuous biosorption of acid red 27 azo dye by Eichhornia crassipes leaves in a packed-bed column

Abstract In this work, the biosorption behavior of acid red 27 (AR27) dye using Eichhornia crassipes leaves (LECs) in a packed-bed column was investigated by varying relevant operational parameters and assessment of mathematical models. Results showed that the zero-charge point of LECs was 2.37 and...

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Autores principales:	Allan Eduardo Ramírez-Rodríguez, Liliana Morales-Barrera, Eliseo Cristiani-Urbina
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/360d3b06a49d426ea4d95c79d3a2eed5
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spelling	oai:doaj.org-article:360d3b06a49d426ea4d95c79d3a2eed52021-12-02T18:02:06ZContinuous biosorption of acid red 27 azo dye by Eichhornia crassipes leaves in a packed-bed column10.1038/s41598-021-98034-42045-2322https://doaj.org/article/360d3b06a49d426ea4d95c79d3a2eed52021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98034-4https://doaj.org/toc/2045-2322Abstract In this work, the biosorption behavior of acid red 27 (AR27) dye using Eichhornia crassipes leaves (LECs) in a packed-bed column was investigated by varying relevant operational parameters and assessment of mathematical models. Results showed that the zero-charge point of LECs was 2.37 and that optima pH and volumetric flux of the influent solution for AR27 biosorption were 2.0 and $$56.5\ \hbox {L}/\hbox {m}^{2}\cdot \hbox {h}$$ 56.5 L / m 2 · h , respectively. The maximum specific and volumetric biosorption capacities were observed at influent AR27 concentrations and with LEC bed heights ranging between 50 and 400 mg/L and 2 and 8 cm, respectively. It was also found that if LEC bed height was increased and volumetric flux and AR27 concentration of the influent solution decreased, service and saturation time increased. Modeling results revealed that the Thomas, bed depth service time, Yoon–Nelson, dose-response, and logistic models accurately described the dynamic performance of the packed-bed column in terms of pH, AR27 concentration, and volumetric flux of influent AR27 solution, as well as that of LEC bed height. The findings revealed that LECs exhibited remarkable potential for the biosorption of AR27 from aqueous solutions in a packed-bed column and could potentially be useful for the treatment of AR27-laden wastewater.Allan Eduardo Ramírez-RodríguezLiliana Morales-BarreraEliseo Cristiani-UrbinaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Allan Eduardo Ramírez-Rodríguez Liliana Morales-Barrera Eliseo Cristiani-Urbina Continuous biosorption of acid red 27 azo dye by Eichhornia crassipes leaves in a packed-bed column
description	Abstract In this work, the biosorption behavior of acid red 27 (AR27) dye using Eichhornia crassipes leaves (LECs) in a packed-bed column was investigated by varying relevant operational parameters and assessment of mathematical models. Results showed that the zero-charge point of LECs was 2.37 and that optima pH and volumetric flux of the influent solution for AR27 biosorption were 2.0 and $$56.5\ \hbox {L}/\hbox {m}^{2}\cdot \hbox {h}$$ 56.5 L / m 2 · h , respectively. The maximum specific and volumetric biosorption capacities were observed at influent AR27 concentrations and with LEC bed heights ranging between 50 and 400 mg/L and 2 and 8 cm, respectively. It was also found that if LEC bed height was increased and volumetric flux and AR27 concentration of the influent solution decreased, service and saturation time increased. Modeling results revealed that the Thomas, bed depth service time, Yoon–Nelson, dose-response, and logistic models accurately described the dynamic performance of the packed-bed column in terms of pH, AR27 concentration, and volumetric flux of influent AR27 solution, as well as that of LEC bed height. The findings revealed that LECs exhibited remarkable potential for the biosorption of AR27 from aqueous solutions in a packed-bed column and could potentially be useful for the treatment of AR27-laden wastewater.
format	article
author	Allan Eduardo Ramírez-Rodríguez Liliana Morales-Barrera Eliseo Cristiani-Urbina
author_facet	Allan Eduardo Ramírez-Rodríguez Liliana Morales-Barrera Eliseo Cristiani-Urbina
author_sort	Allan Eduardo Ramírez-Rodríguez
title	Continuous biosorption of acid red 27 azo dye by Eichhornia crassipes leaves in a packed-bed column
title_short	Continuous biosorption of acid red 27 azo dye by Eichhornia crassipes leaves in a packed-bed column
title_full	Continuous biosorption of acid red 27 azo dye by Eichhornia crassipes leaves in a packed-bed column
title_fullStr	Continuous biosorption of acid red 27 azo dye by Eichhornia crassipes leaves in a packed-bed column
title_full_unstemmed	Continuous biosorption of acid red 27 azo dye by Eichhornia crassipes leaves in a packed-bed column
title_sort	continuous biosorption of acid red 27 azo dye by eichhornia crassipes leaves in a packed-bed column
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/360d3b06a49d426ea4d95c79d3a2eed5
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Continuous biosorption of acid red 27 azo dye by Eichhornia crassipes leaves in a packed-bed column

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