The Kalundborg Symbiosis is an industrial ecosystem, where the by-product residual product of one enterprise is used as a resource by another enterprise, in a closed cycle. An industrial symbiosis is a local collaboration where public and private enterprises buy and sell residual products, resulting in mutual economic and environmental benefits.

Systems make it possible, people make it happen.
In the development of the Kalundborg Symbiosis, the most important element has been healthy communication and good cooperation between the participants. The symbiosis has been founded on human relationships, and fruitful collaboration between the employees that have made the development of the symbiosis-system possible. On the right, you can read about some of the most important lessons in creating and maintaining successful symbiosis that we have learned over the last four decades.

 

 

I PARTNERSKAB MED

 

Waste stream example


Organic waste from Novozymes is made into agricultural fertilizer.
 eksempel_paa_affaldsstroem

Waste stream example


Smoke from DONG is made into gypsum at Gyproc.
SO2 + CaCO3 = CaSO4
eksempel_paa_affaldsstroem

Result examples


  • Yearly CO2 emission reduced by 240.000 tons.
  • 3 million m3 of water saved through recycling and reuse.
  • 30.000 tons of straw converted to 5,4 million litres of ethanol.
  • 150.000 tons of yeast replaces 70% of soy protein in traditional feed mix for more than 800.000 pigs.
  • Recycling of 150.000 tons of gypsum from desulphurization of flue gas (SO2) replaces import of natural gypsum (CaSO4).