Excessive release of color into the environment is a major concern worldwide. Adsorption process is an effective technique for color removal. The potential use of carbon prepared from the fruit of Trasocia juliflora as an adsorbent for the removal of the basic dye methylene blue from aqueous solution is studied. Experiments were undertaken in an agitated batch adsorber to assess the effect of the system variables and the maximum adsorptive capacity was determined. Adsorption isotherm models Langmuir and Freundlich were used to simulate the equilibrium data. The results show that amount of the adsorbent increases with dye sorption. The dye removal time was influenced by the initial dye concentration and the process follows the Freundlich isotherm and pseudo first-order rate kinetics. A maximum removal of 96.4% was observed at adsorbent dosage of 0.05 g/50 mL at pH 7 for an initial methylene blue concentration of 50 mg/l.

Adsorption of methylene blue onto activated carbon produced from fruit of <i>Trasocia juliflora</i>: A study of equilibrium adsorption isotherm and kinetics

243rd National Meeting (2012)

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Adsorption of methylene blue onto activated carbon produced from fruit of Trasocia juliflora: A study of equilibrium adsorption isotherm and kinetics