In the mining sector, the filter press is used for the tailing and the concentrate.
Coal mines have to deal with the problem of disposing of the uneconomic material, by-product of the coal production.
Especially, Matec machines can dewater the waste fines suspended in water, recovering them, cleaning water and eliminating tailing ponds.
Matec filter press is also employed in the concentrate recovering.
For this application, the cake output must have a very low residual moisture, 6 or 7 %, and Matec filters can reach it through the installation of membrane plates which squeeze further and the core blow accessory to dry the cakes.
Processed rocks, coal and clay may contain a wide range of heavy materials, such as arsenic, lead, cadmium, chromium, iron, manganese, aluminium and nickel.