Accumulation and release of Pb(II) in aqueous solution by aquatic mosses (Fontinalis antipyretica)

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Ramiro J. E. Martins (Autor) FEUP; Olga M. M. Freitas (Autor) Outra; Vítor J. P. Vilar (Autor) FEUP; Rui A. R. Boaventura (Autor) FEUP

Revista

Título: International Journal of Environment and Waste Management

Vol. 9 Nº 3-4

Páginas: 270-283

ISSN: 1478-9876

Editora: Inderscience Publishers

Indexação

ISI Web of Knowledge

ISI Web of Science

Scopus - 1 Citação

INSPEC

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia química

CORDIS: Ciências Tecnológicas

Outras Informações

ID Authenticus: P-008-3FR

DOI: 10.1504/ijewm.2012.046392

Abstract (EN): The uptake and release of Pb(II) by Fontinalis antipyretica was studied in laboratory, by exposing the plants to different lead concentrations for 144 h and 335 h contamination and decontamination periods, respectively. A first order kinetic model was fitted to the experimental data to determine the uptake and release constants, k1 and k2, and other relevant parameters. The metal accumulation capacity, at equilibrium, follows the order: Pb(II) > Zn(II) > Cd(II) > Cr(VI). A Bioconcentration Factor (BCF) and a Biological Elimination Factor (BEF) were also determined; for 0.9-2.2 mg Pb l -1, BCF decreases from about 30748 to 21296. Copyright © 2012 Inderscience Enterprises Ltd.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 14