ESTUDO DA CINéTICA E DO EQUILíBRIO DE ADSOR O DOS CORANTES AZUL TURQUESA QG E AMARELO REATIVO 3R EM CARV O ATIVADO

In this work, the performance of activated carbon on adsorption of the dyes turquoise blue andreactive yellow was evaluated. Equilibrium and kinetic experimental data for each dye individually wereobtained. The experiments were conducted in batch system under controlled temperature and agitation.To describe the equilibrium, the Langmuir isotherm was used. To describe the adsorption kinetics, themathematical models based on mass transfer mechanisms diffusion in the film external, surface adsorptionand pore diffusion were used. The equilibrium experimental data showed that the adsorption of dyes byactivated carbon is favorable. The Langmuir isotherm described satisfactorily the adsorption equilibrium ofthe systems investigated. The kinetics experimental data showed that the equilibrium time is 800 and 1200min for the blue and yellow dyes, respectively. The adsorption kinetics was described satisfactorily by thethree models tested.