de Investigaciones Metalúrgicas (SADIM)
SADIM, S.A. de Investigaciones Metalúrgicas, is a company from
Asturias (north of Spain) founded in 1986 dedicated to the treatment and
agglomeration of flue dust and sludges generated from the steel production,
in order to recycle them into the steel process. Currently SADIM has a
pelletizing plant at the Aceralia factory (Arcelor Group) in Gijón-Asturias
(Spain). This plant manages steel mill wastes by balling them and where
twenty people work.
SADIM began its activity
following the directives of the last Company Nacional Siderúrgica
(ENSIDESA) which had on waste treatment to avoid landfilling of them.
From this relationship, SADIM ran a plant for the agglomeration of BOF
sludges (In Aviles-Asturias) in order to use them as a coolant in the
oxygen steelmaking process. These sludges were compacted in almond shape
briquettes and used as scrap substitute
after decarburation of steel.
Afterwards SADIM began the construction of a plant (in Gijón-Asturias)
with the aim of manage most of the solid wastes generated in the off-gases
treatment (BF sludges, desulfurization flue dusts, etc.) and other wastes
(scale sludges, etc.) generated during the manufacture of steel products.
The agglomeration in this case is made by balling into pellets
and recycling them through the SINTER plant as mineral charge.
Nowadays SADIM is authorized as a siderurgical waste manager by the local
government and is working in other residues in order to develop new processes
that allow reuse those wastes with
high metallic values. In this way SADIM is in contact with Spanish public
institutions, as the University of Oviedo, international scientists and
international companies as well, with the aim of solving those problems
that arise when recycling siderurgical wastes.
SADIM was born as a company of R+D with the main objective of minimising
the landfilling of siderurgical wastes by reusing them.
SADIM has a large experience in the agglomeration of sludges and dusts,
and has a deep knowledge of the problems that could appear recycling them.