Behind the Mechanism of Chromium (VI) Removal and Reduction from Aqueous Solutions by Fungal Biomass Using a Bio-Inspired Process Modelling and Optimization - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2021

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

Résumé

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. © 2021, The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG.

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Chimie
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Dates et versions

hal-03249759 , version 1 (04-06-2021)

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R.M. Hlihor, E.N. Drăgoi, M. Diaconu, L. Favier, S. Curteanu, et al.. Behind the Mechanism of Chromium (VI) Removal and Reduction from Aqueous Solutions by Fungal Biomass Using a Bio-Inspired Process Modelling and Optimization. 2nd Euro-Mediterranean Conference on Environmental Integration, EMCEI 2019, Oct 2019, Sousse, Tunisia. pp.517-521, ⟨10.1007/978-3-030-51210-1_82⟩. ⟨hal-03249759⟩
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