References

Seine Amont, France

 

The Seine Amont sludge treatment unit, which is the leading drying installation in France due to its treatment capacity, has a full treatment chain for reducing the quantities to be disposed of, making them hygienic, improving their visual impact, and substantially increasing their energy value. These granules will constitute real products intended either for reuse in the agricultural sector (for crops and green spaces) or for reuse as a source of energy (on-site, in a cement works, or in a thermal power station).

 

 

SeineAmont2.jpg  SeineAmont3.jpg

 

 

TREATMENT LINE

 

CONCENTRATION OF PRETREATMENT FOAM OR GREASE

3 separators/concentrators (60 m3/h, surface area of 9 m2)

 

GREASE PYROLYSIS

NESA pyrolyzer with 2 hearths

SLUDGE DEWATERING AND STORAGE OF THE DEWATERED SLUDGE
5 Andritz Guinard D7LL centrifuges
2 x 100m3 storage silos for dewatered sludge

 

SLUDGE DRYING: PELLETIZATION

3 Andritz direct dryers
Sludge capacity - between 2.7 and 3 t dry solids/h per dryer
1 pelletizer with a capacity of 4.5 t of fines per hour

 

STORAGE AND CONVEYING OF THE DRIED SLUDGE

14 x 460 m3 silos
Draw-off from the silos via 2 pneumatic conveying lines leading to selected destinations
Loading of trains or trucks

 

REUSE OF THE SLUDGE AS AN ENERGY SOURCE

NESA pyrolyzer with 8 hearths
Capacity of the pyrolyzer: 110 t dry solids/day - 122 t of dried sludge per day

 

AGRICULTURAL REUSE OF THE SLUDGE

Objective: Approval of the product
Hourly capacity: 40 t
Annual guaranteed capacity to market: 5,000 t/year
Complements added (maximum of 2 simultaneously):

  1. Potassium chloride: KCl
  2. Potassium sulphate : K2SO4
  3. Urea
  4. Oligo-elements
  5. Packaging of the complements in big bags

 

 

CHARACTERISTICS

  • Dry solids content of the dewatered sludge: 27 to 29 %
  • Dry solids content of the granules and pellets: 90 to 92 %
  • Size of the granules and pellets: 2 to 5 mm in diameter
  • Treatment capacity: 200 t dry solids/day

 

 

more information

 

Degrémont SAS

183 avenue du 18 juin 1940
92500 Rueil Malmaison  
 

Tel : +33 1 46 25 6000