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2021 | OriginalPaper | Chapter

Behind the Mechanism of Chromium (VI) Removal and Reduction from Aqueous Solutions by Fungal Biomass Using a Bio-Inspired Process Modelling and Optimization

Authors : Raluca Maria Hlihor, Elena Niculina Drăgoi, Mariana Diaconu, Lidia Favier, Silvia Curteanu, Maria Gavrilescu

Published in: Recent Advances in Environmental Science from the Euro-Mediterranean and Surrounding Regions (2nd Edition)

Publisher: Springer International Publishing

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Abstract

Our paper investigates the removal efficiency of toxic hexavalent chromium from aqueous solutions by the fungal strain Trichoderma viride, isolated from forest soil and exploited in the form of dead and living biomass. Our findings show that lower pH values ensure maximum removal efficiency (100%) for dead biomass, while nearly neutral pH values are suitable for Cr(VI) removal by the living microorganisms. Data processing by different kinetic models and FTIR analysis is allowed to elucidate the mechanism of Cr(VI) removal by dead T. viride as’adsorption-coupled reduction’, while the intracellular reduction is the dominating mechanism for Cr(VI) removal by living T. viride. An optimization procedure based on SADE-NN-3 alternative of the Differential Evolution (DE) algorithm allowed setting various process parameters and obtaining conditions which ensure 100% removal efficiency.

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Title: Behind the Mechanism of Chromium (VI) Removal and Reduction from Aqueous Solutions by Fungal Biomass Using a Bio-Inspired Process Modelling and Optimization
Authors: Raluca Maria Hlihor
Elena Niculina Drăgoi
Mariana Diaconu
Lidia Favier
Silvia Curteanu
Maria Gavrilescu
Publisher: Springer International Publishing
Book: Recent Advances in Environmental Science from the Euro-Mediterranean and Surrounding Regions (2nd Edition)
Print ISBN: 978-3-030-51209-5

Electronic ISBN: 978-3-030-51210-1

Copyright Year: 2021
DOI: https://doi.org/10.1007/978-3-030-51210-1_82