Welcome to 

Granit Technologie and Engineering (GRT) SA

engineering and contractor. 

Making use of proprietary "state of the art" technologies, we help our customers to process liquid and solid wastes, while preserving the environment and the health.

Granit Technologie and engineering (GRT) SA
Rue des Ducats 40 B
CH-1350 Orbe, Switzerland

Phone +41 (0)21 318 75 10
Fax +41 (0)21 318 75 11

Wet Oxidation of industrial organic sludge: Papeteries du Léman, Thonon France

  • Wet Oxidation installation for processing the effluents from the production of 600’000 t/year of high quality paper paste.
View of the Wet Oxidation plant installed by Granit
View of the high pressure pumping system for the incoming sludge
View of the high pressure reactors and the battery of heat exchangers
  • Processing of 2.5 m3/hour of non biodegradable organics, elimination of 90% of the organics with a residue 100% biodegradable.
  • Process with compressed air
  • Granit Technologies has delivered:

o   Initial laboratory tests for the full characterization of the process

o   Basic engineering of the full installation, with sludge preparation, Wet Oxidation process, gas cleaning process, effluent post treatment (biology)

o   Detailed engineering of the installation

o   Automation concept

o   Risk analysis

o   Selection of equipment suppliers and local contractors

o   Survey of the construction

o   Assistance for the commissioning, the start-up and the maintenance

o   Operator and technician training for the operation and the maintenance

  • The installation is operated now by local operators without any needs of Granit Technologies assistance