Customer :
SEMEDI
Role :
Engineering/ Construction
Key date :
2008
Location :
Haute Normandie - France
Description of the Project
The original SEDIBEX plant was commissioned in 1977, it now consists of 3 lines designed and constructed by VINCI Environnement and it is one of the most modern treatment facilities in Europe. In 2009, the line 3 project has consisted in modernising and extending the capacity of the unit by 65,000 tpa to achieve a total throughput of 165,000 tpa of waste. Like the first 2 lines, it is equipped with a boiler to produce steam, what improves the energy recovery of the facility to a total of 300,000 tons of steam sold to local industries, and 8.5 million kWh in electricity representing 60% of the site’s needs.
Characteristics of the new line 3 :
8 tph (65,000 tpa of doughy and liquid hazardous industrial waste)
Rotary kiln/ Post-combustion chamber/ Boiler connected in co-generation for the production of electricity and steam/ Flue gas treatment by wet process/ De-mineralised water production unit
Energy production : 21.5 tph of steam
Work done and added value of our solution
- Waste type : Hazardous industrial waste, solids, liquids and doughy pumpable
- VINCI Environnement rotary kiln, with post-combustion chamber
- Boiler steam: pressure 40 bars – temperature 360 °C – output 60 tph
- Existing counter-pressure turbo-alternator (20 bars) – 3 lines
- Connection to the local steam network to supply the neighbouring industrialists (140,000 tpa)
- Flue gas treatment by wet process – Filtration through electrostatic precipitator + gas scrubbing – Dioxins treatment in liquid phase – Physicochemical treatment of effluents
- Production of de-mineralised water by large capacity reverse osmosis (1 200m3/day)
