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Título
Reutilisation of Water Contaminated by Mining Waste for the Encapsulation of Potentially Toxic Elements
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Materials
Número de la revista
3
Cita Bibliográfica
Castañón, A. M.; Sierra Fernández, C.; Suárez-Macías, J.; Terrones-Saeta, J. M.; Bernardo Sánchez, A.; Ortiz Marqués, A.; Corpas-Iglesias, F. A. (2022). Reutilisation of Water Contaminated by Mining Waste for the Encapsulation of Potentially Toxic Elements. Materials, 15(3), https://doi.org/10.3390/MA15031076
Editorial
MDPI
Fecha
2022
Resumen
[EN] Mining activities are essential for a population’s development; however, they also produce
negative effects such as the production of waste, an impact on flora and water pollution. On the
other hand, construction is one of the sectors which is most demanding of raw materials, with one
of the main such materials being water. For this reason, this research evaluates the feasibility of
incorporating water contaminated by mining waste into ceramic materials for bricks. In this way,
the use of water is reduced and, on the other hand, the contaminating elements of the mining water
are encapsulated in the ceramic matrix. To achieve this, the clay used and the contaminated water
were first analysed, then different families of samples were conformed with different percentages of
contaminated water. These samples were tested to determine their physical and mechanical properties.
At the same time, leachate tests were carried out to determine that the ceramic material created did not
cause environmental problems. The test results showed that the physical and mechanical properties
of the ceramics were not influenced by the addition of contaminated water. On the other hand, the
leachate tests showed that encapsulation of most of the potentially toxic elements occurred. However,
the use of contaminated water as mixing water for ceramics could only be performed up to 60%,
as higher percentages would leach impermissible arsenic concentrations. Accordingly, a new way
of reusing water contaminated by mining activities is developed in this study, taking advantage of
resources, avoiding environmental pollution and creating economic and environmentally friendly
end products.
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