Adsorption of acid dyes on treated cotton in a continuous system

In this paper, we report the results obtained during a study on the adsorption on grafted cellulose, with quaternary ammonium cations, of acid dyes used by the textile industry: pollutants of aqueous effluents. tudy deals with the adsorption in a continuous system, according to the Bed Depth Service Time (BDST). The calculation of the exchange capacity and of the number of grafted sites from various grafting rates is reported.