The company’s key initiatives for the utilisation of bauxite residues:
• Operation of pilot unit for the utilisation of bauxite residues.
• Production of the first quantities of cast iron, with tests in progress for stabilising production to commercial-grade
specifications.
• Waiting to purchase a spinning machine to utilise the residue (bauxite) in the production of stone wool.
• Participation in research projects to investigate other forms of utilisation of bauxite residues.
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* Management of mud residue from the natural separation in mining site workshops in DELPHI-DISTOMON S.A.: The mud is packaged in metal barrels
and dispatched to Germany for incineration through ENVIROCHEM S.A.
In more detail, for 2012 the types and quantities of the Group’s waste and the corresponding disposal
methods are as follows:
Waste quantities from the Group's activities (ton)
2011
2012
Change
Hazardous waste
19,769.6
20,952.6
+6.0%
Non-hazardous waste
982,078.6
929,231.8
-5.4%
Waste quantities by disposal method (ton)
2011
2012
Change
Recycling / Recovery (paper & carton, plastic, wood packaging
materials, aluminium, iron scrap, batteries, metals & metallic
compounds)
3,182.1
4,957.7
+55.8%
Reuse / Reutilisation
(primarily non-productive decalcification stock)
88,430.3
28,295.2
-68.0%
Incineration (or use as fuel)
5.0
28.5*
+570.0%
Disposal in landfill for Non-Hazardous Waste
681,077.9
832,028.0
+22.2%
Disposal in landfill for Hazardous Waste
16,430.3
16,997.3
-5.4%
Disposal in Uncontrolled Landfills (household waste)
8.0
6.0
+3.4%
Storage on-site (quarry aggregates disposed of in the quarry slopes
& old tyres)
66,100.0
Storage & oil separation (in third-party facilities)
529.0
345.1
-34.8%
Destruction (management of mud residue from the natural separation
in mining site workshops)
352.0
31.5
-91.0%
Disposal at sea
212,061.0
Waste oil re-refining or other reuse of waste oil
81.7
152.2
+86.3%
Exchange of waste
23.4
On our Website:
- Our policy regarding waste management
