Biosorption of Cu(II), Zn(II), Cd(II) and Pb(II) by dead biomasses of green alga Ulva lactuca and the development of a sustainable matrix for adsorption implementation

Many industries have high heavy metals concentrations in their effluents that should be treated before disposal in drains or natural watercourses. When adsorption process is evaluated to generate and implement an efficient, economical and sustainable method suitable for heavy metals removal from con...

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Autor principal:	Areco, María del Mar
Publicado:	2012
Materias:	Adsorption matrix Biosorption Metal removal Ulva lactuca Adsorption capacities Adsorption experiment Adsorption process Batch modes Biosorbents Experimental setup Freundlich models Glass column Green alga Heavy metals removals Kinetic study Langmuir models Langmuirs Metals concentrations pH condition Pseudo second order kinetics Removal efficiencies Sorbates Algae Biological materials Cadmium Effluents Gallium alloys Lead Polysaccharides Zinc compounds Adsorption agar cadmium copper glass lead zinc absorption effluent green alga pH phytomass reaction kinetics acidity adsorption article biomass biosorption cell wall controlled study desorption heavy metal removal ionic strength isotherm kinetics nonhuman oxidation room temperature Agar Algorithms Biomass Copper Hydrogen-Ion Concentration Kinetics Metals, Heavy Microscopy, Electron, Scanning Reproducibility of Results Solutions Ulva Waste Disposal, Fluid Water Purification Zinc algae Chlorophyta
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043894_v213-214_n_p123_Areco http://hdl.handle.net/20.500.12110/paper_03043894_v213-214_n_p123_Areco
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_03043894_v213-214_n_p123_Areco
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spelling	paper:paper_03043894_v213-214_n_p123_Areco2023-06-08T15:29:26Z Biosorption of Cu(II), Zn(II), Cd(II) and Pb(II) by dead biomasses of green alga Ulva lactuca and the development of a sustainable matrix for adsorption implementation Areco, María del Mar Adsorption matrix Biosorption Metal removal Ulva lactuca Adsorption capacities Adsorption experiment Adsorption process Batch modes Biosorbents Experimental setup Freundlich models Glass column Green alga Heavy metals removals Kinetic study Langmuir models Langmuirs Metal removal Metals concentrations pH condition Pseudo second order kinetics Removal efficiencies Sorbates Ulva lactuca Algae Biological materials Biosorption Cadmium Effluents Gallium alloys Lead Polysaccharides Zinc compounds Adsorption agar cadmium copper glass lead zinc absorption cadmium copper effluent green alga lead pH phytomass reaction kinetics zinc acidity adsorption article biomass biosorption cell wall controlled study desorption green alga heavy metal removal ionic strength isotherm kinetics nonhuman oxidation pH room temperature Ulva lactuca Adsorption Agar Algorithms Biomass Cadmium Copper Hydrogen-Ion Concentration Kinetics Lead Metals, Heavy Microscopy, Electron, Scanning Reproducibility of Results Solutions Ulva Waste Disposal, Fluid Water Purification Zinc algae Chlorophyta Ulva lactuca Many industries have high heavy metals concentrations in their effluents that should be treated before disposal in drains or natural watercourses. When adsorption process is evaluated to generate and implement an efficient, economical and sustainable method suitable for heavy metals removal from contaminated effluents, it is necessary to develop an experimental setup that contains the adsorbent. Ulva lactuca, a marine green alga, was studied as a natural biosorbent for heavy metals at acid pH conditions. Adsorption experiments were carried out in glass columns and in batch where the alga was suspended or fixed in an agar matrix. Langmuir and Freundlich models were applied to the experimental results. Langmuir model best describes the adsorption isotherms in all analyzed cases. The adsorption capacity increases with pH. Kinetic studies demonstrate that, in most studied cases, the adsorption follows a pseudo second order kinetics model. Removal efficiencies of the biomaterial supported in agar or fixed in columns were: fixed in columns > suspended in batch mode > fixed in agar. Finally, the effect of the presence of two sorbates, Cd and Pb, in the solution was measured and results demonstrate that adsorption of both metals are diminished by co/adsorption. © 2012 Elsevier B.V. Fil:Areco, M.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043894_v213-214_n_p123_Areco http://hdl.handle.net/20.500.12110/paper_03043894_v213-214_n_p123_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 matrix Biosorption Metal removal Ulva lactuca Adsorption capacities Adsorption experiment Adsorption process Batch modes Biosorbents Experimental setup Freundlich models Glass column Green alga Heavy metals removals Kinetic study Langmuir models Langmuirs Metal removal Metals concentrations pH condition Pseudo second order kinetics Removal efficiencies Sorbates Ulva lactuca Algae Biological materials Biosorption Cadmium Effluents Gallium alloys Lead Polysaccharides Zinc compounds Adsorption agar cadmium copper glass lead zinc absorption cadmium copper effluent green alga lead pH phytomass reaction kinetics zinc acidity adsorption article biomass biosorption cell wall controlled study desorption green alga heavy metal removal ionic strength isotherm kinetics nonhuman oxidation pH room temperature Ulva lactuca Adsorption Agar Algorithms Biomass Cadmium Copper Hydrogen-Ion Concentration Kinetics Lead Metals, Heavy Microscopy, Electron, Scanning Reproducibility of Results Solutions Ulva Waste Disposal, Fluid Water Purification Zinc algae Chlorophyta Ulva lactuca
spellingShingle	Adsorption matrix Biosorption Metal removal Ulva lactuca Adsorption capacities Adsorption experiment Adsorption process Batch modes Biosorbents Experimental setup Freundlich models Glass column Green alga Heavy metals removals Kinetic study Langmuir models Langmuirs Metal removal Metals concentrations pH condition Pseudo second order kinetics Removal efficiencies Sorbates Ulva lactuca Algae Biological materials Biosorption Cadmium Effluents Gallium alloys Lead Polysaccharides Zinc compounds Adsorption agar cadmium copper glass lead zinc absorption cadmium copper effluent green alga lead pH phytomass reaction kinetics zinc acidity adsorption article biomass biosorption cell wall controlled study desorption green alga heavy metal removal ionic strength isotherm kinetics nonhuman oxidation pH room temperature Ulva lactuca Adsorption Agar Algorithms Biomass Cadmium Copper Hydrogen-Ion Concentration Kinetics Lead Metals, Heavy Microscopy, Electron, Scanning Reproducibility of Results Solutions Ulva Waste Disposal, Fluid Water Purification Zinc algae Chlorophyta Ulva lactuca Areco, María del Mar Biosorption of Cu(II), Zn(II), Cd(II) and Pb(II) by dead biomasses of green alga Ulva lactuca and the development of a sustainable matrix for adsorption implementation
topic_facet	Adsorption matrix Biosorption Metal removal Ulva lactuca Adsorption capacities Adsorption experiment Adsorption process Batch modes Biosorbents Experimental setup Freundlich models Glass column Green alga Heavy metals removals Kinetic study Langmuir models Langmuirs Metal removal Metals concentrations pH condition Pseudo second order kinetics Removal efficiencies Sorbates Ulva lactuca Algae Biological materials Biosorption Cadmium Effluents Gallium alloys Lead Polysaccharides Zinc compounds Adsorption agar cadmium copper glass lead zinc absorption cadmium copper effluent green alga lead pH phytomass reaction kinetics zinc acidity adsorption article biomass biosorption cell wall controlled study desorption green alga heavy metal removal ionic strength isotherm kinetics nonhuman oxidation pH room temperature Ulva lactuca Adsorption Agar Algorithms Biomass Cadmium Copper Hydrogen-Ion Concentration Kinetics Lead Metals, Heavy Microscopy, Electron, Scanning Reproducibility of Results Solutions Ulva Waste Disposal, Fluid Water Purification Zinc algae Chlorophyta Ulva lactuca
description	Many industries have high heavy metals concentrations in their effluents that should be treated before disposal in drains or natural watercourses. When adsorption process is evaluated to generate and implement an efficient, economical and sustainable method suitable for heavy metals removal from contaminated effluents, it is necessary to develop an experimental setup that contains the adsorbent. Ulva lactuca, a marine green alga, was studied as a natural biosorbent for heavy metals at acid pH conditions. Adsorption experiments were carried out in glass columns and in batch where the alga was suspended or fixed in an agar matrix. Langmuir and Freundlich models were applied to the experimental results. Langmuir model best describes the adsorption isotherms in all analyzed cases. The adsorption capacity increases with pH. Kinetic studies demonstrate that, in most studied cases, the adsorption follows a pseudo second order kinetics model. Removal efficiencies of the biomaterial supported in agar or fixed in columns were: fixed in columns > suspended in batch mode > fixed in agar. Finally, the effect of the presence of two sorbates, Cd and Pb, in the solution was measured and results demonstrate that adsorption of both metals are diminished by co/adsorption. © 2012 Elsevier B.V.
author	Areco, María del Mar
author_facet	Areco, María del Mar
author_sort	Areco, María del Mar
title	Biosorption of Cu(II), Zn(II), Cd(II) and Pb(II) by dead biomasses of green alga Ulva lactuca and the development of a sustainable matrix for adsorption implementation
title_short	Biosorption of Cu(II), Zn(II), Cd(II) and Pb(II) by dead biomasses of green alga Ulva lactuca and the development of a sustainable matrix for adsorption implementation
title_full	Biosorption of Cu(II), Zn(II), Cd(II) and Pb(II) by dead biomasses of green alga Ulva lactuca and the development of a sustainable matrix for adsorption implementation
title_fullStr	Biosorption of Cu(II), Zn(II), Cd(II) and Pb(II) by dead biomasses of green alga Ulva lactuca and the development of a sustainable matrix for adsorption implementation
title_full_unstemmed	Biosorption of Cu(II), Zn(II), Cd(II) and Pb(II) by dead biomasses of green alga Ulva lactuca and the development of a sustainable matrix for adsorption implementation
title_sort	biosorption of cu(ii), zn(ii), cd(ii) and pb(ii) by dead biomasses of green alga ulva lactuca and the development of a sustainable matrix for adsorption implementation
publishDate	2012
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043894_v213-214_n_p123_Areco http://hdl.handle.net/20.500.12110/paper_03043894_v213-214_n_p123_Areco
work_keys_str_mv	AT arecomariadelmar biosorptionofcuiizniicdiiandpbiibydeadbiomassesofgreenalgaulvalactucaandthedevelopmentofasustainablematrixforadsorptionimplementation
_version_	1768543515251310592

Biosorption of Cu(II), Zn(II), Cd(II) and Pb(II) by dead biomasses of green alga Ulva lactuca and the development of a sustainable matrix for adsorption implementation

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