Batch Studies for Methylene Blue Removal and Recovery by Untreated Coffee Residues

Journal of Environmental Science and Engineering A 6 (2017) 487-495 doi:10.17265/2162-5298/2017.10.001

9 Pages Posted: 3 Jan 2020

See all articles by Odysseas Kopsidas

Odysseas Kopsidas

University of Piraeus; Aristotle University of Thessaloniki

Date Written: October 1, 2017

Abstract

This paper reports the practicability of using coffee residues to remove widely used basic dyes like MB (Methylene Blue) from wastewaters. The effect of different batch system parameters, namely stirring speed, pH, initial dye concentration and contact time were studied. Moreover, in continuous fixed-bed column systems, the effects of parameters such as bed-depth, flow rate and initial dye concentration were examined. The experimental batch systems data were simulated using (a) Freundlich, Langmuir and Sips isotherm models and (b) 1st order, 2nd order, and intra-particle kinetic models. The results revealed that the MB is fairly adsorbed on coffee residues. This process could be a low cost technique for the removal of basic dyes from aqueous systems.

Keywords: Adsorption, desorption, column, MB (Methylene Blue), coffee residues, wastewaters

Suggested Citation

Kopsidas, Odysseas, Batch Studies for Methylene Blue Removal and Recovery by Untreated Coffee Residues (October 1, 2017). Journal of Environmental Science and Engineering A 6 (2017) 487-495 doi:10.17265/2162-5298/2017.10.001, Available at SSRN: https://ssrn.com/abstract=3501540

Odysseas Kopsidas (Contact Author)

University of Piraeus ( email )

80 Karaoli & Dimitriou str.
Piraeus, 18534
Greece

Aristotle University of Thessaloniki ( email )

Thessaloniki
Greece

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