BUTYL PARABEN ADSORPTION ON COAL BASED ON LOW COST OF COCONUT SHELLS FROM CÔTE D'IVOIRE

The adsorption of an endocrine disruptor in the paraben family, (butyl paraben), from water resources on activated carbon has been studied. The activated carbon was prepared based on coconut shells considered "agricultural waste" in Cote d'Ivoire. The influence of both parameters on the effect of adsorption (the mass of the activated carbon and the pH of the reaction medium) has been studied. It is clear from these studies that the higher the amount of activated carbon is, the better is the amount of butyl paraben remove from water. Moreover, the adsorbed amount is much higher in an acid medium. Adsorption of activated carbon on butyl paraben follows the Langmuir, Freundlich and Temkin models because uptake is gradual monolayer to higher layers. The equilibrium parameters k and 1 / n less than 1 indicate that the adsorption of butyl paraben on charcoal-based coconut shells is favorable. Adsorption of activated carbon on butyl paraben fit a second kinetic order as shown in representation of t / a versus time; with a thermodynamic constant of 0.1091 g.mg-1.min-1.