Removal of Acid Violet 19 Dye from Aqueous Solution by Adsorption onto Activated Charcoal and Polyaniline Coated Charcoal

Abstarct: In this study, activated charcoal and polyaniline coated charcoal were used as adsorbents for the investigation of the adsorption isotherms of the Acid Violet 19 dye in aqueous solutions at various dye concentrations, contact time, pH and adsorbent dose. The results showed that the percentage removal of dye by Charcoal and Polyaniline coated charcoal increases with increase in agitation time and adsorbent dose. The extent of removal of dyes decreases with increase in initial concentration of dyes and acidic pH was favorable for the adsorption of this dye. The experimental data isotherms were analyzed using the Langmuir, Freundlich equations.