- Turkish Journal of Engineering and Environmental Sciences
- Vol: 36 Issue: 3
- Kinetic analysis of crystal violet adsorption on to bottom ash
Kinetic analysis of crystal violet adsorption on to bottom ash
Authors : Puthiya Veetil NIDHEESH, Rajan GANDHIMATHI
Pages : 249-262
Doi:10.3906/kim-1304-12
View : 6 | Download : 2
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :The adsorption behavior of crystal violet (CV) from aqueous solution onto bottom ash was investigated under various experimental conditions. The parameters studied included contact time, initial CV concentration, particle size, and ionic strength. The kinetic experimental data were analyzed by different models. The experimental adsorption data showed good correlation with the kinetic models and suggested a multimechanism sorption process. The adsorption mechanisms follow pseudo-second-order kinetics with a significant contribution of intraparticle diffusion and film diffusion. Pseudosecondorder kinetics follows the removal of CV by bottom ash for smaller particle size (150 m m. The adsorption mechanism was further analyzed by Reichenberg's method. The adsorption capacity of bottom ash decreases with increases in CV concentration and increases with particle size. The effect of ionic strength was analyzed by adding NaCl and CaCl2. The ionic strength variation study showed that CV removal increases with increases in NaCl and CaCl2 concentration.Keywords : Adsorption, crystal violet, bottom ash, kinetics, kinetic models