Asterococcus superbus as a biosorbent of copper, zinc, cadmium and lead: Adsorption isotherm and kinetic modelling

The adsorption capacity of copper, zinc, cadmium and lead by Asterococcus superbus, a freshwater microalgae, was studied in batch mode. The Langmuir, Freundlich, Temkin and Dubinin-Radushkevich models were applied and results demonstrate that for all cases the Langmuir model best describes the adsor...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Areco, María del Mar, Rodriguez, María Cecilia
Publicado:	2014
Materias:	Adsorption isotherms Asterococcus superbus Biosorbents Cadmium Copper Dubinin-Radushkevich Freshwater algae Freundlich Intraparticle diffusion model Kinetics study Langmuir Lead Pseudo-first-order kinetic model Pseudo-second-order kinetic model Temkin Water contamination Zinc
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17434955_v7_n1_p83_Areco http://hdl.handle.net/20.500.12110/paper_17434955_v7_n1_p83_Areco
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_17434955_v7_n1_p83_Areco
record_format	dspace
spelling	paper:paper_17434955_v7_n1_p83_Areco2023-06-08T16:27:53Z Asterococcus superbus as a biosorbent of copper, zinc, cadmium and lead: Adsorption isotherm and kinetic modelling Areco, María del Mar Rodriguez, María Cecilia Adsorption isotherms Asterococcus superbus Biosorbents Cadmium Copper Dubinin-Radushkevich Freshwater algae Freundlich Intraparticle diffusion model Kinetics study Langmuir Lead Pseudo-first-order kinetic model Pseudo-second-order kinetic model Temkin Water contamination Zinc The adsorption capacity of copper, zinc, cadmium and lead by Asterococcus superbus, a freshwater microalgae, was studied in batch mode. The Langmuir, Freundlich, Temkin and Dubinin-Radushkevich models were applied and results demonstrate that for all cases the Langmuir model best describes the adsorption process and that A. superbus isotherm followed the bisorption series, Zn > Cu > Pb > Cd. Kinetic studies demonstrate that the adsorption of zinc and copper follows a pseudo-second-order kinetic model, and that of cadmium and lead follows a pseudo first-order kinetic model. Natural waters present an increasing concentration of heavy metals, mainly due to the effluent discharge in these type or reservoires. The importance of the present work is to contribute to the study of new methods to diminish the presence of heavy metals in natural waters. Copyright © 2014 Inderscience Enterprises Ltd. Fil:Areco, M.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rodríguez, M.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17434955_v7_n1_p83_Areco http://hdl.handle.net/20.500.12110/paper_17434955_v7_n1_p83_Areco
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Adsorption isotherms Asterococcus superbus Biosorbents Cadmium Copper Dubinin-Radushkevich Freshwater algae Freundlich Intraparticle diffusion model Kinetics study Langmuir Lead Pseudo-first-order kinetic model Pseudo-second-order kinetic model Temkin Water contamination Zinc
spellingShingle	Adsorption isotherms Asterococcus superbus Biosorbents Cadmium Copper Dubinin-Radushkevich Freshwater algae Freundlich Intraparticle diffusion model Kinetics study Langmuir Lead Pseudo-first-order kinetic model Pseudo-second-order kinetic model Temkin Water contamination Zinc Areco, María del Mar Rodriguez, María Cecilia Asterococcus superbus as a biosorbent of copper, zinc, cadmium and lead: Adsorption isotherm and kinetic modelling
topic_facet	Adsorption isotherms Asterococcus superbus Biosorbents Cadmium Copper Dubinin-Radushkevich Freshwater algae Freundlich Intraparticle diffusion model Kinetics study Langmuir Lead Pseudo-first-order kinetic model Pseudo-second-order kinetic model Temkin Water contamination Zinc
description	The adsorption capacity of copper, zinc, cadmium and lead by Asterococcus superbus, a freshwater microalgae, was studied in batch mode. The Langmuir, Freundlich, Temkin and Dubinin-Radushkevich models were applied and results demonstrate that for all cases the Langmuir model best describes the adsorption process and that A. superbus isotherm followed the bisorption series, Zn > Cu > Pb > Cd. Kinetic studies demonstrate that the adsorption of zinc and copper follows a pseudo-second-order kinetic model, and that of cadmium and lead follows a pseudo first-order kinetic model. Natural waters present an increasing concentration of heavy metals, mainly due to the effluent discharge in these type or reservoires. The importance of the present work is to contribute to the study of new methods to diminish the presence of heavy metals in natural waters. Copyright © 2014 Inderscience Enterprises Ltd.
author	Areco, María del Mar Rodriguez, María Cecilia
author_facet	Areco, María del Mar Rodriguez, María Cecilia
author_sort	Areco, María del Mar
title	Asterococcus superbus as a biosorbent of copper, zinc, cadmium and lead: Adsorption isotherm and kinetic modelling
title_short	Asterococcus superbus as a biosorbent of copper, zinc, cadmium and lead: Adsorption isotherm and kinetic modelling
title_full	Asterococcus superbus as a biosorbent of copper, zinc, cadmium and lead: Adsorption isotherm and kinetic modelling
title_fullStr	Asterococcus superbus as a biosorbent of copper, zinc, cadmium and lead: Adsorption isotherm and kinetic modelling
title_full_unstemmed	Asterococcus superbus as a biosorbent of copper, zinc, cadmium and lead: Adsorption isotherm and kinetic modelling
title_sort	asterococcus superbus as a biosorbent of copper, zinc, cadmium and lead: adsorption isotherm and kinetic modelling
publishDate	2014
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17434955_v7_n1_p83_Areco http://hdl.handle.net/20.500.12110/paper_17434955_v7_n1_p83_Areco
work_keys_str_mv	AT arecomariadelmar asterococcussuperbusasabiosorbentofcopperzinccadmiumandleadadsorptionisothermandkineticmodelling AT rodriguezmariacecilia asterococcussuperbusasabiosorbentofcopperzinccadmiumandleadadsorptionisothermandkineticmodelling
_version_	1768541579796021248

Asterococcus superbus as a biosorbent of copper, zinc, cadmium and lead: Adsorption isotherm and kinetic modelling

Ejemplares similares