Used Sand
This residue is a leftover from the molds
used in foundries to produce castings. Initially,
this residue consisted of appro-ximately 98.5%
new silica sand and 1.5% additives. Once used,
this sand mixture should be disposed as per
the requirements of the Ministère du
Dévelop-pement Durable, de l’Envi-ronnement
et des Parcs du Québec.
|
Slags
Slags are generated during the melting process,
eliminating impurities in alloy steels. Slags
occur in various sizes and their silica content
is considerably lower than used sand.
|
Dust
Dust is captured at various collection stations
within the foundry and is stored in silos.
Its nature is similar to sand, but is significantly
finer in particle size and can include additive
particulate. |
