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Saphyr™ - Veolia Water Solutions & Technologies
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Reducing odours throughout the sludge treatment process

The Saphyr™ process, an alternative option to liming, is used to stabilise and sanitise thickened sludge generated by wastewater treatment plants.

 
The Saphyr™ process

Saphyr™ reduces the odours generated by the sludge production process through to its final destination.


Performance

  • Long lasting reduction of odours;
  • Reduced evacuation quantities compared to liming;
  • Removal of faecal contamination germs and sporulated forms;
  • Improved dewatering;
  • Subsequent incineration or co-incineration possible;
  • Comparable in costs to liming;
  • Simple design and easy to operate.


Saphyr™ : chemical oxidation

  • for thickened sludge,
  • in the presence of NO2-,
  • under acidic conditions (pH 2-3).


Reference plants

  • Cortina d'Ampezzo, Italy (1998) - 9,000 P.E.*
  • Cognac, France (2002) - 50,000 P.E.*
  • Ustaritz, France (2003) - 13,000 P.E.*

*P.E.: Population Equivalent


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