Solid diffusion control of the adsorption of basic dyes onto granular activated carbon and natural zeolite in fixed bed columns

• Main Authors: Markovska L., Meshko V., Noveski V., Marinkovski M.
• Format: Article
• Language: English
• Published: Serbian Chemical Society 2001-01-01
• Series: Journal of the Serbian Chemical Society
• Subjects: solid diffusion control; dye adsorption; granular activated carbon; natural zeolite; adsorption modelling
• Online Access: http://www.doiserbia.nb.rs/img/doi/0352-5139/2001/0352-51390107463M.pdf

The adsorption of basic dyes from aqueous solutions onto granular activated carbon and natural zeolite was studied using a fixed bed column. The design procedures for fixed bed adsorption columns were investigated for two basic dyes Maxilon Goldgelb GL EC 400 % (MG-400) and Maxilon Schwarz FBL-01 300 % (MS-300). Acomputer program based on the solid diffusion control model has been developed. The model parameters: solid diffusion coefficient, DS, axial dispersion coefficient, DL and external mass transfer coefficient, kf for all the investigated systems were estimated by means of a best fit approach.