In Kalundborg Symbiosis, public and private enterprises buy and sell waste products from industrial production in a closed cycle. The residual products traded can include steam, dust, gases, heat, slurry or any other waste product that can be physically transported from one enterprise to another.

 

A residual product originating from one enterprise becomes the raw material of another enterprise, benefiting both the economy and the environment.

 

 

IN COLLABORATION WITH

 

Waste stream example


Organic waste from Novozymes is made into agricultural fertilizer.
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Waste stream example


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