The adsorption of basic and acid dyes from aqueous solution onto natural zeolite has been studied using an agitated batch adsorber. Several factors have been studied: agitation, initial dye concentration and adsorbent mass. The adsorption isotherms parameters for Langmuir, Freundlich, combined Langmuir-Freundlich and Redlich-Peterson were determined using the adsorption data. The computer simulation programs based on the solid diffusion and combined solid diffusion and external film resistance models were developed by ISIM dynamic simulator. Liquid - phase concentration at particle surface was assumed to be time depended. These programs were used for fitting the kinetic experimental data for all investigated systems.
展开▼
