Environment
Waste treatment
CEDEV (Centre de Dépollution et de Valorisation),
is responsible not only for COOPERL’s
waste elimination but also manages waste treatment
for other food-processing industries and surrounding towns.
The resulting steam energy is used by the slaughterhouse
and the organic fertilizer production plant.
Sludge and Food-Processing Waste
ENERGY production is used to power Cooperl slaughterhouse and DENITRAL fertilizer plant.
Sludge dehydration
After physico-chemical treatment, the sludge is concentrated by
centrifugation. The sludge is then dried at 110 °C in a steam-heated
container with sludge from other food-processing centres and towns.
Liquid runoff from mixing the sludge is retreated in the physico-chemical unit.
Waste incineration
The dried sludge is incinerated with industrial waste (packaging)
in an oven at 1000 °C. Effluent gases and air produced during drying
are re-incinerated at 850 °C in a vapour producing boiler. Treating
vapours guarantees the harmlessness of effluent gases before
their release.
Energy production
Since waste incineration is carried out by auto-combustion,
no fossil fuels are used. The resulting vapour joins a pool of energy
that powers the slaughterhouse, the sludge dehydration facility and
fertilizer production from DENITRAL organic matter
The synergies are numerous :
• Energy production and recycling through waste management.
• Cooperation between industry and towns, where towns find a radical
solution too for urban sludge.
• Procedural Synergy. Incineration also allows gases to be burnt
during sludge dehydration and fertilizer production. Physico-chemical
treatment eliminates pollution from water produced during sludge
concentration.
Physico-chemical
Treatment Effluent from the slaughterhouse undergoes intensive treatment
that reduces pollution and liquid sludge concentration by 80%.
