González-Sánchez JF, Fernández JM, Álvarez JI, Navarro-Blasco I "Solidification/Stabilization of hazardous wastes from the mine "La Prieta" in Hidalgo del Parral, Chihuahua, México". EN: X Jornada de Investigación en Ciencias Experimentales y de la Salud en la Universidad de Navarra. Libro de Resúmenes 2017;comunicación poster# 57:76.
The mining industry of Mexico is one of the oldest and most useful activity for the Mexican economy,
however it has a high environment impact from the subsoil to the atmosphere. It generates a large amount of
solid, liquid and gaseous wastes. The most impacted mining wastes are tailings due to the high content of
One of the most widespread alternatives for handling toxic metal is the blocking in a manageable solid
system which allows the proper solidification/stabilization (S/S) of hazardous components and its subsequent
Ordinary Portland Cement (OPC) has been widely studied to retain potentially toxic heavy metals, but the
use of other alternative binders is receiving growing attention. For instance, the use of Calcium Aluminate
Cement (CAC) to safely encapsulate hazardous materials has proved to be highly effective.
In this study both binding matrices, OPC and CAC, were assayed to encapsulate loaded naturally toxic metal
mining tailings with the aim to obtain a waste-containing solid block with improved management and
successfully disposal. A semi-dynamic Tank Test (EA NEN 7375, 2004) was applied in elucidating leaching
mechanisms and to evaluate the supporting evidence in solidify/stabilize of these hazardous wastes in this
type of cement-based matrices.