Kinetics and equilibrium study for the biosorption of lanthanum by Penicillium simplicissimum INCQS 40,211
2021
Bergsten-Torralba, Ludmila R. | Nascimento, C. R. S. | Buss, Daniel F. | Giese, Ellen C.
Lanthanum (La) is a light rare-earth element that plays an essential role in manufacturing technological products, clean technologies, medical products, electron cathodes, scintillators, fluorescent lamps, and fertilizers. This study is the first investigation of La³⁺ biosorption using inactive lyophilized biomass from Penicillium simplicissimum INCQS 40,211. The maximum sorption capacity (qₘₐₓ) for P. simplicissimum was 7.81 mg g⁻¹. La ³⁺ biosorption followed the Freundlich model, where the biosorption system possibly multilayer coverage of P. simplicissimum by lanthanum ions. The kinetic data for the adsorption process obeyed a pseudo-second-order (R² > 0.92), indicating chemical sorption. The results indicated that inactive lyophilized biomass from Penicillium simplicissimum INCQS 40211are an excellent candidate for removing light rare-earth elements from aquatic environments.
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