1. Kinetics, isotherm, and thermodynamic studies of methylene blue adsorption from water by Mytella falcata waste.
- Author
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Silva TS, Meili L, Carvalho SHV, Soletti JI, Dotto GL, and Fonseca EJS
- Subjects
- Adsorption, Animals, Brazil, Kinetics, Particle Size, Solid Waste, Surface Properties, Textile Industry, Thermodynamics, Animal Shells chemistry, Bivalvia chemistry, Coloring Agents analysis, Methylene Blue analysis, Water Pollutants, Chemical analysis, Water Purification methods
- Abstract
This work evaluates the application of Mytella falcata shells, discarded in large quantities in the state of Alagoas, Brazil, as adsorbent for methylene blue dye (MB). It was investigated how the amount of adsorbent (M), the average particle diameter (G), and the agitation speed (A) affected the adsorption. Kinetic and equilibrium studies were conducted, and the pseudo-second-order equation adequately represented the kinetic data and isotherms following Liu's model (q
max = 8.81 mg g-1 at 60 °C). The adsorption was spontaneous, favorable, and endothermic. Mytella falcata shell is a suitable adsorbent for MB and could potentially contribute to its removal from the environment. more...- Published
- 2017
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