LEAD AND CHROMIUM SORPTION ONTO BASIC OXYGEN FURNACE SLAG

1 LANGOVÁ Šárka
Co-authors:
1 KOSTURA Bruno 1 RITZ Michal 1 MATĚJKA Vlastimil
Institution:
1 VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, sarka.langova@vsb.cz
Conference:
31st International Conference on Metallurgy and Materials, Orea Congress Hotel Brno, Czech Republic, EU, May 18 - 19, 2022
Proceedings:
Proceedings 31st International Conference on Metallurgy and Materials
Pages:
60-65
ISBN:
978-80-88365-06-8
ISSN:
2694-9296
Published:
30th June 2022
Proceedings of the conference have been sent to Web of Science and Scopus for evaluation and potential indexing.
Metrics:
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Abstract

Lead and chromium removal from water solutions using the basic oxygen furnace slag was investigated. Calcium, iron, and silica were the main components of the slag. The samples were characterized by means of the thermal, surface, and mineralogical analysis and infrared spectroscopy. The experiments were performed at the ambient temperature. Chromium adsorption proceeded according to the Langmuir isotherm and lead adsorption proceeded according to the Freundlich isotherm. The sorption capacity over 150 mg/g was reached for chromium and the value was higher than 250 mg/g for lead. Kinetic data were analysed using the pseudo-first, pseudo-second and intra-particle diffusion models. Adsorption data of chromium were correlated with the pseudo-second-order kinetic model and lead sorption was very quick and the models could not be applied.

Keywords: Chromium, lead, slag, adsorption

© 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.

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