Various cationized lignocelluloses were used for the adsorption of anionic surfactants from wastewaters. The number of cationic sites anchored per g support governed the quantities of pollutant adsorbed. A rapid adsorption led to saturation of all the cationic sites and gave type I adsorption isotherms. Some parameters such as the pH or the temperature had a limited effect. Due to the strong ionic interaction, only partial desorption was observed under severe conditions, viz. when high ionic strength solutions were used at 60–80°C.
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