And passive treatment system for removal of acidity in water and permanent fixing of heavy metals by wollastoníticos substrate carbonates and / or dispersed brucite.

摘要

And passive treatment system for removal of acidity in water and permanent fixing of heavy metals by wollastomiticos substrate carbonates and / or brucite. # Constituted from a succession of a number of tanks which communicate with weirs. A pump brings the water into the mine. Inside the tanks they have been poured minerals that make up the treatment and comprising a bottom few centimeters pervious fluidized bed is a gravel size material siliceous composition as the quartz varies its granulometry from gravel, ie 10 -20 cm. at the bottom, to an overlying layer of about 10 cm. quartz fine size, 1.2 cm., on which the set of alkaline materials is superimposed on approximate proportions 20 to 30% of wollastoníticos-brucíticos carbonates and 80-70% of wood shavings mixed with an inert material as wood chips or polyurethane.