Application of raw volcanic rock found in Etna valley as an adsorbent of chromates, arsenates and selenates
| Autor: | Nela Petronijević, Mladen Bugarčić, Milan Milivojevic, Miroslav Sokić, Jovica Stojanović, Branislav Marković, Aleksandar D. Marinković |
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| Rok vydání: | 2018 |
| Předmět: |
lcsh:TN1-997
geography geography.geographical_feature_category Materials science Mechanical Engineering Metals and Alloys Heavy metals anionic heavy metals 010501 environmental sciences 01 natural sciences Characterization (materials science) Volcanic rock Granulation Adsorption Etna Chemical engineering adsorption volcanic rock Gravimetric analysis Fourier transform infrared spectroscopy Porosity lcsh:Mining engineering. Metallurgy 0105 earth and related environmental sciences |
| Zdroj: | Metallurgical & Materials Engineering Metallurgical & Materials Engineering, Vol 24, Iss 2, Pp 133-144 (2018) |
| ISSN: | 2217-8961 |
| Popis: | This paper aims to determine the potential of volcanic rock found in Etna valley as an adsorbent of heavy metals in anionic form (chromates, arsenates, and selenates). Characterization of the volcanic rock was done with chemical methods (AAS, AES, gravimetric analysis, XRF), physicochemical methods (XRD, FTIR, SEM, DTA, DTG) and physical methods (porosity measurement, Microscopy in transmitted light). Also, equilibrium adsorption capacity was determined. All the results of adsorption capacity were satisfying considering the mineral composition, granulation, and porosity. The removal efficiency of chromates was the biggest (above 30 %) with adsorption capacity of 15.6 mg Cr g-1. The lowest adsorption efficiency was with the selenates, approximately 18 %. |
| Databáze: | OpenAIRE |
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