Abstract
The adsorption of phenol onto activated carbon and Astrazone Blue dye (Basic Blue 25) onto silica was studied. Equilibria, batch contact and fixed bed systems have been studied and the effect of several variables have been reported; these include adsorbate and adsorbent concentrations (for batch studies) solution flowrate and adsorbent bed height for the fixed bed studies. A theoretical mass transfer model reported previously has been tested using the two adsorption systems. The model is based on external mass transfer and pore diffusion and used batch kinetic data to predict the performance of fixed bed column studies. A single pore diffusion coefficient has been used to correlate batch and column results for the adsorption of phenol onto carbon. However, in the case of Astrazone Blue adsorption onto silica, single but different pore diffusivities must be used for the batch and column studies respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 168-174 |
| Number of pages | 7 |
| Journal | Chemical Engineering Research and Design |
| Volume | 63 |
| Issue number | 3 |
| Publication status | Published - May 1985 |
| Externally published | Yes |