ADSORPTION CHARACTERISTICS STUDY ON THE REMOVAL OFTHERAPEUTIC DRUG IBUPROFEN POLLUTION ON THE ACIDDIGESTED CARBON OF WASTE LEATHERS RS) - LEATHERSK. Veeravelan, S. Arivoli and J. Samu Solomon
The adsorption characteristics study on the removal of therapeutic drug ibuprofen on the acid digestedcarbon of waste leather were analysed by varying the physico-chemical conditions. The minimum particlesize gives maximum number of surface area and adsorbed more, 91.25% for 0-63 micron. Acidic pH rangeswere optable for the adsorption of ibuprofen on this ADCL. But different adsorbates preferred differentacidic pH ranges of pH from 1 â 6. In this case at pH 5, 93.1% of adsorption takes place. The percentage ofadsorption of ibuprofen is directly proportional to the adsorbent dosage and contact time and inverselyproportional to the initial concentration of the adsorbate were found out from this study. Order of thisadsorption is pseudo second order kinetics and it belongs to the physisorption, because of no chemicalbond formation between the adsorbent and adsorbate. The fruendlich and Langmuir isotherm model is fitfor these studies. The thermodynamic study reveals the negative ïGo and positive ïHo and ïSo valuesconcluded that this adsorption is spontaneous, feasible and physical in nature respectively. The spectralevidence from the FT-IR, SEM and XRD are in favour of above experimental results.