Adsorption of Telon Red FRL From Aqueous Solutions On Fish Scale

Abstract

^{The main purpose of this study was to investigate the adsorption of Acid Red 337 (AR337),Telon Red FRL, to fish scale, a waste, in a batch system relating to the initial pH, initial dye concentration, adsorbent concentration and temperature. For the adsorption of AR337to fish scale, the optimum initial pH, temperature and adsorbent concentration were determined to be 2.0, 30oC and 1 g/L, respectively. The adsorbed AR 337 amounts by fish scale increased with increasing initial dye concentration from 25 mg/L to 1000 mg/L. The Langmuir and Freundlich adsorption models were applied to experimental equilibrium data and the isotherm constants were calculated. The monolayer coverage capacity of fish scale for AR337 adsorptionwas obtained as 1000 mg/g. The intraparticle diffusion model was applied to the experimental data in order to describe the removal mechanism of the studied dye by fish scale.}