ADSORPTIVE REMOVAL OF MALACHITE GREEN FROM AQUEOUS SOLUTION USING ARECA HUSK CARBON

摘要

The Present study explored the feasibility of using agro-waste Areca Husk as adsorbent for the removal of Malachite green from aqueous solution was investigated. Batch adsorption experiments were conducted to study the effect of sorbent dosage, particle size, contact time, initial dye concentration, pH and temperature for the removal of dye. Adsorption data were modeled using Langmuir, Freundlich, Temkin and Dubnin-Radushkevich adsorption isotherms. Adsorption kinetics was verified by pseudo-first order, pseudo-second order, intra-particle diffusion, Elovich and Bangham models. The kinetic adsorption data fitted the pseudo-first order kinetic model well and also followed the intra-particle diffusion model. Thermodynamic parameters have also been evaluated. The structural and morphological of activated carbon were characterized by FTIR and SEM studies respectively. The results have established good potentiality for the carbons particles to be used as a sorbent for the removal of MG from waste water