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Environments 2018, 5(1), 10; https://doi.org/10.3390/environments5010010

Removal of Synthetic Dyes by Dried Biomass of Freshwater Moss Vesicularia Dubyana: A Batch Biosorption Study

1
Department of Ecochemistry and Radioecology, University of SS. Cyril and Methodius in Trnava, Nam. J. Herdu 2, 91701 Trnava, Slovakia
2
Department of Chemistry, Trnava University in Trnava, Priemyselná 4, 91843 Trnava, Slovakia
*
Author to whom correspondence should be addressed.
Received: 27 November 2017 / Revised: 4 January 2018 / Accepted: 6 January 2018 / Published: 9 January 2018
(This article belongs to the Special Issue Advances in Environmental Engineering)
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Abstract

In this work the biosorption of cationic dyes thioflavin T (TT) and methylene blue (MB) from single and binary solutions on dried biomass of freshwater moss Vesicularia dubyana as a function of contact time, pH, and biomass or sorbate concentration has been investigated. The prediction of maximum sorption capacities using adsorption isotherm models were also realized. Biosorption of TT and MB is a rapid process strongly affected by solution pH. Maximum sorption capacities Qmax calculated from Langmuir isotherm were 119 ± 11 mg/g for TT and 229 ± 9 mg/g for MB. In binary mixture, the presence of MB caused significant decrease of TT sorption, advocating the competitive sorption between TT and MB. Results revealed that V. dubyana biomass exhibited significantly higher affinity to thiazine dye MB in comparison with benzothiazole dye TT from both single and binary solutions. Based on the obtained results, the competitive effects in binary system can substantially influence the sorption process and should be thoroughly evaluated before application of selected adsorbents for removal of basic dyes from colored effluents. View Full-Text
Keywords: biosorption; cationic dyes; moss; Vesicularia dubyana biosorption; cationic dyes; moss; Vesicularia dubyana
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Pipíška, M.; Valica, M.; Partelová, D.; Horník, M.; Lesný, J.; Hostin, S. Removal of Synthetic Dyes by Dried Biomass of Freshwater Moss Vesicularia Dubyana: A Batch Biosorption Study. Environments 2018, 5, 10.

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