Obtaining activated carbon from grape pulp and removing of reactive blue 19 from the aqueous solution

Authors : Bahdişen GEZER

Pages : 62-70

View : 23 | Download : 13

Publication Date : 2020-06-23

Article Type : Research Paper

Abstract :As an adsorbent for the removal of reactive blue 19 insert ignore into journalissuearticles values(RM 19); from the aqueous solution, grape pulp carbon insert ignore into journalissuearticles values(GMC);, an agriculture allow cost by product, was used. Activated carbon was obtained by chemical activation of a grape meal with zincchloride. The surface area of the grape pulp carbon was calculated as 1542.71 m2/g surface area using the BET method. The experiment data showed that adsorption was extremely pH dependent and optimal pH was decisived as 3.0. The maximum dye adsorption capacity was 587.7 mg/g at 45 °C. Freundlich and Langmuira adsorption models were used for a mathematical definition of adsorption equilibrium. According to the experimental data, the Freundlich model was a very good fit. Mass transfer and kinetic models were applied to experimental data to investigate the mechanisms of adsorption and potential rate steps. The mass transfer and intraparticle diffusion were found to play an significant role in the adsorption mechanisms of paint and adsorption kinetics in the first-class kinetic model. The adsorption test results were found to be important in terms of environmental friendliness, economical and easy availability by the activated carbon obtained from the reactive blue 19 textile dye grape pulp.
Keywords : Grape pulp, chemical activation, activated carbon, adsorption, reactive blue 19