PEACH PIT CHEMICALLY TREATED BIOMASS AS A BIOSORBENT FOR METFORMIN HYDROCHLORIDE REMOVAL: MODELING AND SORPTION MECHANISMS

In this work, the potential of peach pit biosorption in removal drug metformin hydrochloride from water is evaluated. Experiments are carried out a closed batch system to evaluate effect solution pH (2–10), temperature (25, 35 and 45 °C), stirring (100, 150 200 rpm) chemical treatments. During study, biosorbent characterization, kinetic tests, equilibrium tests thermodynamic parameter calculations performed. The operating conditions that show best results for both raw submitted acid, basic acid followed by treatments with capacities 3.17, 10.83, 18.10 49.14 mg g−1, respectively, 7, 25 °C 100 rpm, which result an time 12 h. pseudo-second-order model represents fit experimental data, while Langmuir data. biomasses significant increase capacity related biosorbent, maximum absorption 82.54±1.34 g−1 achieved after application treatment. These has be used as low-cost remove drugs water.