This plant in Merkem (Belgium), 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 2011
Startup May 2012


Capacity 42.000 m³/year
Input Chicken manure and co-materials
Digester(s) 2 x 2,800 m³
After-digester(s) 1 x 2,800 m³
CHP(s) Not supplied by HoSt
Pre-strorage/receipt 4 x 100 m³ polyester silos
Sanitation 4 x 10 m³ sanitation tank, 1 hour at 70°C
Solid feeding input 40 m³ mixing/dosing bin with input screws


  • Advanced pump system that is suitable for crossfeed
  • 580 m³ concrete after-strorage for sanitized materials

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.