Application of a Cost Effective Biosorbent for Basic Dye Removal from Textile Industries

Main Article Content

Reza Ansari
Zahra Mosayebzadeh
Ali Mohammad-khah

Abstract

This article deals with application of sawdust (SD) as a very efficient and economical adsorbent for removal of methylene blue (MB) as a typical basic (cationic) and commonly used dye in textile industries from aqueous solutions. The operating variables studied were initial solution pH, adsorbent mass, initial dye concentration and contact time. The experiments were carried out using both batch and column systems at room temperature. In order to have a good comparison, a commercial grade of granulated activated carbon (GAC) was also used in this investigation. Adsorption of MB on the SD and GAC was examined by the pseudo-first-order and pseudo-second-order models and their respective rate constants of first-order adsorption (k1) and second-order adsorption (k2) were estimated. The experimental data fitted very well with the pseudo-second-order kinetic model. The experimental data were also analyzed by the Langmuir and Freundlich models of adsorption. Based on the correlation coefficient values obtained (R2), it was found that equilibrium data for SD fitted well with both models. In order to find out the possibility of desorption for frequent application, the chemical regeneration of the used column was also investigated.

Downloads

Download data is not yet available.

Article Details

How to Cite
Ansari, R., Mosayebzadeh, Z., & Mohammad-khah, A. (2011). Application of a Cost Effective Biosorbent for Basic Dye Removal from Textile Industries. Journal of Advanced Scientific Research, 2(03), 25-31. Retrieved from https://sciensage.info/index.php/JASR/article/view/39
Section
Research Articles