Universidad Peruana Cayetano Heredia

Pb(II) and Cd(II) biosorption on Chondracanthus chamissoi (a red alga)

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dc.contributor.author Yipmantin, A.
dc.contributor.author Maldonado, H.J.
dc.contributor.author Ly, M.
dc.contributor.author Taulemesse, J.M.
dc.contributor.author Guibal, E.
dc.date.accessioned 2022-01-18T19:26:47Z
dc.date.available 2022-01-18T19:26:47Z
dc.date.issued 2011
dc.identifier.uri https://hdl.handle.net/20.500.12866/10872
dc.description.abstract Chondracanthus chamissoi is an efficient biosorbent for Pb(II) and Cd(II). The sorption efficiency increases with pH and reaches an optimum around pH 4. Maximum sorption capacity reaches 1.37mmolPbg-1 and 0.76mmolCdg-1. The biosorbent has a marked preference for Pb(II) over Cd(II), though insufficient for separating these metals by a simple sorption step. The uptake kinetics is controlled by the resistance to intraparticle diffusion with a limited impact of particle size, metal concentration and sorbent dosage. In the present case, grinding the biomass does not improve sorption capacity and uptake kinetics. The sorption of metal ions is probably due to their interaction with carrageenan (one of the main constituents of the biosorbent): sulfonic groups (on the sulfated polysaccharide) have a higher affinity for Pb(II) than for Cd(II) according to HSAB rules. en_US
dc.language.iso eng
dc.publisher Elsevier
dc.relation.ispartofseries Journal of Hazardous Materials
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject Controlled Study en_US
dc.subject Ph en_US
dc.subject Lead en_US
dc.subject Biomass en_US
dc.subject Kinetics en_US
dc.subject Concentration (Parameters) en_US
dc.subject Adsorption Isotherms en_US
dc.subject Biosorbents en_US
dc.subject Biosorption en_US
dc.subject Hydrogen-Ion Concentration en_US
dc.subject Isotherm en_US
dc.subject Metal Concentrations en_US
dc.subject Microscopy Electron Scanning en_US
dc.subject Particle Size en_US
dc.subject Sorption Capacities en_US
dc.subject Sorption Isotherms en_US
dc.subject Uptake Kinetics en_US
dc.subject Chemical Analysis en_US
dc.subject Particle Size en_US
dc.subject Cadmium en_US
dc.subject Lead en_US
dc.subject Diffusion en_US
dc.subject Impact Resistance en_US
dc.subject Cadmium Compounds en_US
dc.subject Carrageenan en_US
dc.subject Cation en_US
dc.subject Chemical Interaction en_US
dc.subject Chondracanthus Chamissoi en_US
dc.subject Gracilaria en_US
dc.subject Grinding en_US
dc.subject Heavy Metal Removal en_US
dc.subject Intra-Particle Diffusion en_US
dc.subject Metal Ions en_US
dc.subject Microbial Biomass en_US
dc.subject Polysaccharide en_US
dc.subject Porosity en_US
dc.subject Reaction Kinetics en_US
dc.subject Red Alga en_US
dc.subject Red Algae en_US
dc.subject Rhodophyta en_US
dc.subject Sorption en_US
dc.subject Sorption Efficiency en_US
dc.subject Sulfated Polysaccharides en_US
dc.subject Sulfation en_US
dc.subject Sulfonic Acid Derivative en_US
dc.subject Sulfonic Group en_US
dc.subject Thermodynamics en_US
dc.subject Transport Kinetics en_US
dc.title Pb(II) and Cd(II) biosorption on Chondracanthus chamissoi (a red alga) en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1016/j.jhazmat.2010.09.108
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#3.01.00
dc.relation.issn 0304-3894


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