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In the present work, the interactions between the amine functionnal groups present in chitosan, a natural polysaccharide and different species of inorganic arsenic are studied. Depending of the N-deacetylation rate, chitosan provides amine functions that could be protonated and shows interesting affinities to adsorb oxyanions of arsenic in solution. Two species, arsenate (AsV) and arsenite (AsIII),...
Arsenic oxyanions, considered as priority pollutants, were removed from dilute aqueous solutions by sorption onto synthetic goethite, a typical inorganic adsorbent. Flotation was subsequently applied as an effective solid/liquid separation method. The combined process produced a foam concentrate, containing the arsenic-loaded goethite particles. The dispersed-air flotation technique was used for...
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