Abstract
Adsorption of the monocrotophos pesticide from aqueous solution using “waste” jute fiber (JF) has been investigated. Adsorption equilibrium, kinetics, thermodynamics, and mass transfer studies were investigated as a function of agitation time, adsorbent dose, pH, and temperature. The adsorption kinetics were analyzed by using pseudofirst-order and pseudosecond-order kinetic equations. The adsorption isotherm data were fitted well by the Langmuir isotherm model, and the adsorption capacity was found to be 124 mg·L−1. Thermodynamic parameters of the adsorption process, that is, ΔG, ΔS, and ΔH, were calculated, and their negative values indicate the adsorption was exothermic and had a spontaneous nature. The effective diffusion coefficients were calculated with respect to the variation in concentration and temperature. A single-stage batch adsorption process was also designed by using the adsorption isotherm data.
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