Co-incinération en tant que matière première alternative (en cimenterie ou autre)
Co-incinération en tant que matière première alternative (en cimenterie ou autre)
Type de traitement: Traitement
Description:Incineration of polluted sand and solid waste in cement works as Alternative Raw material (Sand is a natural raw material consumed in cement production).
Note. Co-incineration is the incineration of waste in industrial incinerators, kilns, furnaces as an alternative or complementary fuel source and/ or as material source.
Déchets:
Polluted sand
Polluted solid waste
Situation/Possibilités dans le pays:
Some cement facilities have special adaptations to use OSW (sands, muds, solid waste) as raw material.
Intérêt:
Critères d'entrée:
Contraintes opérationnelles:
Impacts:
Loss of natural sand resources.
Incinerators may release carcinogenic and toxic chemicals, including heavy metals, partially-burned organic material such as polyvinyl chloride (PVC), and other organic chemicals, including polycyclic aromatic hydrocarbons (PAHs), dioxins and furans.
The concentration of the release depends on the type of waste, of incinerator and of filter installed on the chimney.
See Appendix “Emission limits for co-incineration in cement kilnsâ€, p.107
Contraintes légales:
Refer to incineration and atmospheric releases legislation.
Special authorisation may be required for such work.
Efficacité:
Depends on the substitution rate : from 1 to 5 tons/ day
Coût:
OPEX: from 30 to 150 Euros / ton according to waste condition. Mostly no additional cost if lightly contaminated soil with oil and solid waste (Source: Holcim Europe direct communication)