engleski

Influence of dynamic parameters on the adsorption of Everzol Black B dye on activated carbon

Numerous methods for dyes removal from wastewaters are used, and one of those that has proven to be an efficient and cost-effective is adsorption. In this work, static and dynamic methods of the adsorption of reactive dye on powdered activated carbon were compared. For this purpose, isothermal adsorption process of Everzol Black B dye of concentration c0=300 mg dm3 on 0.1 g of activated carbon at a temperature of 45 (±1) oC was carried out in different time periods (from 15 minutes to 16 hours, i.e. until the equilibrium was reached) in two different ways: without shaking (static method) and at a shaking speed of 100 rpm (dynamic method). The results of this study showed that percentage of adsorbed dye in all applied times was approximately equal for both methods. In order to investigate the influence of dynamic parameters on the adsorption, the results of this work were compared with those which were performed under the same experimental conditions (dye concentration, adsorbent mass and temperature), but at the shaking speed of 250 rpm. For both methods applied in this work, kinetic study revealed that adsorption is kinetically controlled by the pseudo-second order kinetic model.

isothermal adsorption, static and dynamic method, Everzol Black B, activated carbon

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