The bottom ash resulting from waste treatment is more or less polluted and must be recycled with care. By its very nature, bottom ash can contain high levels of dioxins and many pollutants such as heavy metals and hydrocarbons.
In order to protect the environment and to avoid any risk, the legislation requires leaching tests on many substances. Thus, the following elements As, Ba, Cd, Cr Total, Cu, Hg, Mo, Ni, Pb, Sb, Se, Zn, Fluorides, Chlorides, Sulfates must be analyzed. It also specifies the conditions of use out of the floodable zones, near the water courses and the points of catchments of drinking water…