### 100% Biogas Energy Recovery. Using sludge-sourced biogas to produce steam.



 

 

 



**The challenge**

When new regulations required Bonduelle to build a wastewater treatment plant for its food processing factory in Békéscsaba, Hungary, the company turned to Veolia, whose specialists suggested a solution using sludge-sourced biogas to produce steam.

As Veolia exploits the biogas successfully in Nagykőrős, Bonduelle decided to use biogas also in Békéscsaba:

- Recover available biogas produced by a wastewater treatment plant with UASB technology
- Improve energy efficiency
- Optimize energy costs which challenges solve the inventions using biogas

**Veolia’s solution**

- Renovation of the energy plant: 2 boilers in Békéscsaba
- Adaptation of one of existing boilers for the combustion of biogas
- Biogas parameters:
    - Pressure: 23-27 Mbar
    - Temperature: 35° C
- Production of steam at 180° C, 10 bar
- Flexibility to adapt to seasonal nature of production



 

 

 



 

 

**Békéscsaba, HUNGARY**

**Activity type: operation and maintenance**

**100% biogas energy recovery**

**16-year contract**

**a.v. 16% reduction in energy costs**



 

 

 

 

 

 





  [  ![](/sites/g/files/dvc2926/files/styles/default/public/image/2021/04/CSC%20Bonduelle%20Bekescsaba%20Food%20and%20Beverage%20Hungary%20Energy.png.webp?itok=X9gw0UOi)  ](/sites/g/files/dvc2926/files/document/2021/04/CSC%20Bonduelle%20Bekescsaba%20Food%20and%20Beverage%20Hungary%20Energy.pdf)  





 

 

 



 

 

 

 





**The benefits**

- Greener steam supply
- Average 16% reduction in energy costs (€100k/year)
- Biogas is cheaper by 20% than natural gas
- Continuous and secure supply of steam

   ![](/sites/g/files/dvc2926/files/styles/default/public/image/2021/04/Bonduelle_schema.png.webp?itok=_xdDaTkx)   



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