Operations are selected within the limits of the environmental permits and the applicable integrated environmental authorizations of each installation. For each flow, what matters are the accepted codes, the authorized operations, the capacities, the operating conditions and the monitoring requirements.
The waste hierarchy establishes the order of priorities: prevention, preparation for re-use, recycling, other recovery operations — including energy recovery — and disposal. Repair can contribute to prevention or to preparation for re-use, depending on the status of the material.
We aim to preserve the value of materials for as long as possible. Disposal remains the solution for fractions that cannot be recovered legally and safely. Our internal ceiling targeted for the share of disposal is a maximum of 2% annually; according to internal operational records, the historical results reported have not exceeded 1%. This indicator is interpreted within the scope of the flows and of the periods to which the records refer.
In reporting, we differentiate recycling from energy recovery and from disposal. Handing over a waste to an operator for an intermediate stage is not, in itself, proof of final recycling.
Waste neutralization: reducing hazards through appropriate treatments
Waste neutralization is established according to the nature of the contaminants and the authorized operations. For certain acidic or alkaline flows, this can include the controlled adjustment of pH; other flows require specific decontamination, stabilization or treatment processes. We select the solution based on characterization, compatibility and the acceptance criteria for the next stage. The residues generated by treatment are characterized and managed separately.
The result is verified through the parameters relevant to the process. The term “neutralization” does not mean that every hazard property has been removed and does not automatically equate to recycling or to the end of waste status.
Waste disposal, incineration and co-incineration: documented destinations
For flows that require waste incineration or waste co-incineration, the choice of route takes into account composition, calorific value, contaminants and the conditions of the destination plant. Co-incineration can integrate the use of waste in an industrial production or energy generation process. The classification of the operation as recovery or disposal is verified against the permit and the applicable legal conditions.
We document the handover to the authorized plant, the quantity and the operation applied. In the analysis of waste disposal solutions, we first verify the recovery alternatives and justify the route chosen for the fractions that cannot be recovered. Thermal treatment, energy recovery and material recycling are highlighted distinctly in ESG data.