[     Business case listing ](/resources/case-studies "  Business case listing")



 

 

 

## Ecodisk™Filter technology : the combination of an Ecodisk™ and a drum filter



 

 

 



#### Customer needs

The Hautecombe Foundation entrusts OTV Sud — a subsidiary of Veolia Water Technologies — with the rehabilitation of the Hautecombe Abbey wastewater treatment plant with a capacity of 510 population equivalent (PE). The historical site requires a compact technology that can be integrated in this exceptional site.  
  
The client wished to develop its plant while respecting the following parameters:

- Compactness and architectural integration
- Conservation of existing equipment
- Efficient treatment of carbon and nitrogen pollution
- Autonomous and simple operation



 

 

 



#### The solution

Thanks to the modularity of the [Ecodisk™](/solutions/technologies/ecodisk "Ecodisk™") solution, OTV in partnership with PMT — a second subsidiary of Veolia Water Technologies — proposed the implementation of [Ecodisk™ Filter](/technologies/ecodisk-filter "Ecodisk® Filter"). biological disk integrating a filtration for separation of treated water.  
  
The solution includes:

- The reuse of the lift station, automatic bar screen and compactor
- The conservation of the existing decanter digester
- The installation of a two meter in diameter biodisk for a surface of 1900 square metre and a drum filter in a single equipment
- The creation of a counting channel.



 

 

 



#### Treatment guarantees

Chemical oxygen demand: 61,20 kilogram per day (kg/d)  
Five-day biochemical oxygen demand.: 30,6 kg/d  
Proficiency testing: 1,53 kg/d  
Total suspended solids: 45,9 kg/d  
Total Kjeldahl Nitrogen: 7,65 kg/d



 

 

 

 

 

 



 

#### Capacity

510 PE  
Daily flow : 77 cubic meters per day  
Peak flow : 11 cubic meters per hour



 

 

 

 

 

 



 

 

 





#### Advantages of the solution

- Reinforcement of the treatment capacity
- Ecodisk Filter: two treatments in one single equipment
- Treatment of carbonaceous and nitrogenous pollution in compliance with the new NH4<5 mg/l (ammonium less than five milligrams per litre) regulation
- Sludge treatment by séparation on a drum filter
- Low energy installation



 

 

 



 

 

   ![](/sites/g/files/dvc3326/files/styles/media/public/image/2022/04/th-1230x1000-2020-abbaye-hautecombe-1000-c.jpg%20%281%29_0.jpg.webp?itok=3I6Mhwsh)   





 

 





#### The client

The Hautecombe Abbey is located in the commune of Saint-Pierre-de-Curtille, in an exceptional site, on the shores of Lake Bourget and at the foot of Mont du Chat.



 

 

 



   ![](/sites/g/files/dvc3326/files/styles/default/public/image/2022/04/Abbaye_Hautecombe%2873%29_0.PNG.webp?itok=nMTTN5SA)   





 

 

 



#### Customer benefits

- Perfect landscape integration, with no odor, visual or noise pollution
- Compactness: All treatment stages in a single structure
- Limited operating costs/automatic operation
- Limited energy consumption
- No addition of chemical products