External Mass Transport Processes during the Adsorption of Basic Dyestuffs onto Maize Cob
- 1 September 1990
- journal article
- research article
- Published by SAGE Publications in Adsorption Science & Technology
- Vol. 7 (3) , 124-132
- https://doi.org/10.1177/026361749000700303
Abstract
A simple kinetic model has been developed to explain the external mass transport of the basic dyestuffs (Basic Blue 69 and Basic Red 22) from aqueous solutions onto maize cob. The model enables the external mass-transfer coefficients, KS, to be determined and these are characteristic of the rate of mass transport of dye across the boundary layer surrounding the adsorbent particle. The external mass-transfer coefficient has been found to vary linearly with agitation, initial dye concentration, particle size range and mass of maize cob, according to the general equation KS = X(variable)Y.Keywords
This publication has 4 references indexed in Scilit:
- Transport processes in the sorption of colored ions by peat particlesJournal of Colloid and Interface Science, 1981
- Intraparticle mass transport in slurries by dynamic adsorption studiesAIChE Journal, 1974
- Fluid-Particle and Intraparticle Mass Transport Rates in SlurriesIndustrial & Engineering Chemistry Fundamentals, 1973
- Diffusivities from dynamic adsorption dataAIChE Journal, 1973