Browsing GI-QUIMFISAGUA - Artigos by Title
Now showing items 1-10 of 10
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Biosorption of Cadmium by Biomass of Brown Marine Macroalgae
(2005-11-07)[Abstrac] Five different brown seaweeds, Bifurcaria bifurcata, Saccorhiza polyschides, Ascophyllum nodosum, Laminaria ochroleuca and Pelvetia caniculata were studied for their ability to remove cadmium from aqueous solution. ... -
Biosorption of Cadmium by the Protonated Macroalga Sargasssum Muticum: Binding Analysis With a Non-Ideal, Competitive and Thermodynamically Consistent Adsorption (NICCA) Model
(Elsevier, 2005)[Abstract] Protonated biomass of the seaweed Sargassum muticum was investigated for its ability to remove cadmium(II) from aqueous solutions. In this work, a non-ideal, semi-empirical, thermodynamically consistent (NICCA) ... -
Biosorption of phenolic compounds by the brown alga Sargassum muticum
(2005-11-09)[Abstract] Phenol, 2-chlorophenol (2-CP), and 4-chlorophenol (4-CP) biosorption on Sargassum muticum, an invasive macroalga in Europe, has been investigated. The efficiency of this biosorbent was studied measuring the ... -
Gibbs-Donnan and Specific Ion Interaction Theory Descriptions of the Effect of Ionic Strength on Proton Dissociation of Alginic Acid
(Elsevier, 2004)[Abstract] The apparent proton dissociation constants of a commercial alginic acid have been obtained in KNO3 and NaCl at concentrations ranging between 0.01 and 2 mol·L-1. An analysis of the dependence on the ionic strength ... -
Interactions of Cadmium(II) and protons with dead biomass of marine algae Fucus sp
(2005-11-09)[Abstract] Samples of dead biomass from the marine brown algae Fucus ceranoides, F. vesiculosus and F.serratus were studied for their ability to remove cadmium from aqueous solutions. The metal sorption process is rapid, ... -
Kinetic and Equilibrium Study of the Reaction of Nitroprusside and Hydroxide Ions: Influence of Ionic Strength Using Pitzer Model
(Wiley Interscience, 2004)[Abstract] A kinetic and equilibrium study of the addition reaction of hydroxide ions to nitroprusside has been carried out in this paper. Rate and equilibrium constants at different salt concentrations (up to 4 mol/kg) ... -
Physicochemical Studies of Cadmium(II) Biosorption by the Invasive Alga in Europe, Sargassum Muticum
(Wiley Interscience, 2004)[Abstract] In recent years, there has been a significant increase in the studies concerning brown seaweed as biosorbents for metal removal owing to their high binding ability and low cost. This work reports the results of ... -
Removal of Inorganic Mercury From Aqueous Solutions by Biomass of the Marine Macroalga Cystoseira Baccata
(Elsevier, 2005)[Abstract] The ability of Cystoseira baccata algal biomass to remove Hg(II) from aqueous solutions is investigated. The mercury biosorption process is studied through batch experiments at 25ºC with regard to the influence ... -
Removal of methylene blue from aqueous solutions using as biosorbent sargassum muticum: an invasive macroalga in Europe
(2005-11-09)[Abstract] Methylene blue adsorption on Sargassum muticum, an invasive macroalga in Europe, has been investigated using visible absorption spectroscopy. Different pre-treatments, protonation and chemical cross-linking ... -
The marine macroalga Cystoseira baccata as biosorbent for cadmium(II) and lead(II) removal: kinetic and equilibrium studies
(2005)[Abstract] This work reports kinetic and equilibrium studies of cadmium(II) and lead(II) adsorption by the brown seaweed Cystoseira baccata. Kinetic experiments demonstrated rapid metal uptake. Kinetic data were satisfactorily ...
