KINETIC STUDIES ON ADSORPTION OF METHYLENE BLUE USING NATURAL LOW COST ADSORBENT
In the present study, the main aim is to remove methylene blue (MB) from aqueous solution using natural biosorbent by adsorption process. Vigna Trilobata pod was used as a potential biosorbent for the removal of methylene blue under different experimental conditions. Four kinetic models, pseudo first order, pseudo second order, Elovich and Weber Morris Intra Particle Diffusion models, were examined to find the biosorption kinetics. The results showed that pseudo second order is the best fit model with the correlation coefficient of R2 ≥ 0.99. These experimental results proved that Vigna Trilobata pod can be used as a low cost natural biosorbent for the removal of methylene blue.
RAVI VITAL KANDISA, NARAYANA SAIBABA KV, GOPINADH R AND K VEERABHADRAM