This plant in Aalter, which is operated by Eneco, is optimized by HoSt. The plant was originally built by a German supplier and only suitable for the digestion of corn. By adapting the system, the installation has been made ​​suitable for the digestion of various waste streams. The installation is extended with a mixing / dosing bin, a cat. 3 sanitation unit, which makes it possible to digest animal waste streams, and receipt silos for liquid products.

The biogas production is optimized due to changes in the digestion process. The installation is modified from a one-stage to a two-stage digestion installation, making use of the existing tanks. The total return is increased by 15%.


Start Construction February 2012
Startup July 2012


Capacity 80,000 m³/year
Input Cattle manure, grass, food past UBD, manure, corn, maize, glycerin and other residues
Digester(s) 3 x 2,800 m³
After-digester(s) 1 x 2,800 m³
CHP(s) 2 x 1,489 kWe (already existing)
Receipt liquid products 4 x 100 m³ polyester silos
Extending solid feeding input 80 m³ mixing/dosing bin with input screws
Thermal treatment/hygienisation 4 x 10 m³ hygienisation tanks (1h, 70°C)


  • Optimalisation of existing installation
  • After adjustment suitable for various waste streams
  • Sanitation digestate 1 h at 70°C

More information

Do you want to receive more information about our biogas plants, want to learn more about our anaerobic digestion technology or do you want to know what HoSt can do for you? Don’t hesitate to contact us through [email protected] or call us on +31 (0)53 – 460 90 80.