Biosorption of lead by the brown seaweed Sargassum filipendula - batch and continuous pilot studies
Electron. j. biotechnol
;
10(3): 368-375, July 2007. graf, tab
Artículo
en Inglés
| LILACS
| ID: lil-640483
ABSTRACT
The biosorption of lead by the brown alga Sargassum filipendula was studied. pH 4.0 was the optimum value for the biosorption of lead. Isotherms indicated that for solutions containing 0.03 ± 0.001 up to 3.27 ± 0.04 mmol/L of lead, 2.0g/L was the optimum biomass concentration. The Langmuir model was fitted to represent the experimental data, and the kinetics of biosorption presented equilibrium in 30 min. The continuous system operated for 56 hrs presenting a 100% binding of ionic lead, which corresponds to an accumulation of 168 g lead, equivalent to a load of 1.7 mmol ionic lead/g Sargassum filipendula. The results that were obtained in a continuous system showed a gradual saturation of the biomass in the reactors.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Idioma:
Inglés
Revista:
Electron. j. biotechnol
Asunto de la revista:
Biotecnologia
Año:
2007
Tipo del documento:
Artículo
/
Documento de proyecto
País de afiliación:
Brasil
Institución/País de afiliación:
Universidade Federal de Uberlândia/BR
/
Universidade Federal do Rio de Janeiro/BR
/
Universidade do Estado do Rio de Janeiro/BR
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