Study Into Dynamic Behaviour of the Methylene Blue Adsorption on Activated Carbon

Pastierová Alica () and Sirotiak Maroš ()
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Pastierová Alica: Slovak university of technology in bratislava, faculty of materials science and technology in trnava, institute of integrated safety, ulica jána bottu 2781/25, 917 24 trnava, Slovak Republic
Sirotiak Maroš: Slovak university of technology in bratislava, faculty of materials science and technology in trnava, institute of integrated safety, ulica jána bottu 2781/25, 917 24 trnava, Slovak Republic

Research Papers Faculty of Materials Science and Technology Slovak University of Technology, 2021, vol. 29, issue 48, 105-113

Abstract: This paper presents a study into dynamic behaviour of the methylene blue adsorption (MB) on activated carbon. Effect of four parameters were studied: effect of the adsorbent dosage, effect of contact time, effect of pH, and effect of the initial concentration of methylene blue. The adsorption kinetic data were modelled using the pseudo-first and pseudo-second orders. Results show that, based on the experimental data, the pseudo-second order could be considered satisfactory. Thermodynamic parameters proved that adsorption of dye was spontaneous owing to increase in temperature and endothermic nature. Taguchi method was applied to determine the optimum conditions for removal of methylene blue by activated carbon. The optimum conditions were found to be pH = 7, contact time 60 min, initial concentration of MB 4 mg/L.

Keywords: Adsorption; dye removal; Taguchi; kinetics; thermodynamic (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:vrs:repfms:v:29:y:2021:i:48:p:105-113:n:6

DOI: 10.2478/rput-2021-0011

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