Mining stored activity in its different stages and operations generates considerable amount of waste material in waste rock dumps and tailings dams. They are characterized by their high metal contents, lower pH and insignificant amounts of organic matter.
For a correct management of these wastes, in our case neutralization sludges and flotation tails, its necessary to use evaluation mechanisms that help to predict the potential risk of contamination of environment, that is the main reason why the present work was developed:
The first part concerns sequential chemical extraction where speciation is evaluated and the kinetics of leaching to predict the time and the mobility of chosen elements. Both provide information about the availability of metals in certain environmental conditions.
The second part concerns the application of mathematical models: one of mobility to infer the proportion in which an element may be transferred to an easily available fraction and the other refers to the space time distribution of the elements in a confined space. Both models are tools to a fast evaluation of environmental risks.