Marine macroalgae Pelvetia canaliculata (Linnaeus) as natural cation exchanger for metal ions separation: A case study on copper and zinc ions removal

[Display omitted] •Marine macroalgae Pelvetia canaliculata showed to be a natural cation exchanger.•Sequestration of Zn2+ and Cu2+ by raw biomass occurs by the release of light metals.•The amount of weak acid carboxylic groups on the biomaterial surface is 1.5mEq/g.•The amount of strong acid sulfoni...

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Bibliographic Details
Published in:Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2014-07, Vol.247, p.320-329
Main Authors: Girardi, Franciélle, Hackbarth, Fabíola V., de Souza, Selene M.A. Guelli U., de Souza, Antônio Augusto U., Boaventura, Rui A.R., Vilar, Vítor J.P.
Format: Article
Language:English
Subjects:
Cation exchanging
Copper
Functional groups
Ion exchangers
Ion-exchange
Macro-algae
Magnesium
Mathematical models
Natural cation exchangers
Pelvetia canaliculata
Selectivity coefficients
Sodium
Sodium chloride
Zinc
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Summary:[Display omitted] •Marine macroalgae Pelvetia canaliculata showed to be a natural cation exchanger.•Sequestration of Zn2+ and Cu2+ by raw biomass occurs by the release of light metals.•The amount of weak acid carboxylic groups on the biomaterial surface is 1.5mEq/g.•The amount of strong acid sulfonic groups on the biomaterial surface is 1.0mEq/g.•Selectivity coefficients of the natural exchanger increases as Na+
ISSN:1385-8947
1873-3212
DOI:10.1016/j.cej.2014.03.007