Gasum’s Baltic Sea Commitment


/ 17.03.2017

Enhanced production of safe recycled nutrients from sewage sludge

Organisation: Gasum Oy

Time: 3/2017 – 6/2020

Tiedosto:Gasum logo.png – Wikipedia

 

Description:

Gasum is the biggest producer of biogas in the Nordic countries. The Gasum Group’s 12 biogas plants are located in Huittinen, Honkajoki, Kuopio, Oulu, Riihimäki, Turku and Vehmaa, Finland, and Jordberga, Katrineholm, Lidköping, Örebro and Västerås, Sweden. In addition, Gasum has a 50% shareholding in Vadsbo Biogas in Sweden. Gasum also produces biogas with its partners in Espoo, Kouvola and Lahti, Finland. Gasum carries out waste treatment and biogas and organic fertilizer production.

Gasum is committed to develop a concept for efficient nutrient recovery and production of safe nutrient products from digestate of sewage sludge origin. The developed concept will enable nutrient recovery (N, P) from the liquid fraction as well as from the solid fraction of digestate. The concept will provide new recycled nutrient products and enable safe nitrogen recycling for industrial and agricultural purposes as well as produce a solid product which is free from harmful organic compounds.

The developed concept will provide a solution for sustainable enhanced treatment of sewage sludge and other biomasses by combining biogas production and nutrient recovery technologies and thus reduce the risk of nutrient leakage into the Baltic Sea.

 

Milestones:

  1. Nitrogen product produced from the liquid fraction of digestate for agricultural and industrial use.
  2. Biochar production from the solid fraction of digestate in operation.
  3. N:(P)-concentrate production from the liquid fraction of digestate in operation.

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