For ash processors

Fly ash, which is produced as a by-product in wood burning, contains valuable nutrients. These nutrients can be returned to the natural cycle as a forest fertilizer. Granulated forest fertilizer is gaining popularity due to its ecological and long-acting characteristics, as well as its effectiveness that has been proven in various studies.

We provide ash recipients and processors with customized granulation installations for fly ash granulation. Our installations are cost-effective and enable a profitable ash granulation business.

We also offer a sales service for granulated forest fertilizer via Hiilinielurekisteri. Hiilinielurekisteri (Carbon Sink Register) is a web-based service where forest owners use ash fertilization to generate additional carbon sinks which are then purchased by individuals and companies to compensate their CO2 emissions.

Granulation installations

Our granulation installations are the result of our own product development. The installations are highly automated and cost-effective. They are designed and manufactured at the workshop of Rakeistus Oy in Oulu, Finland.

Our granulation installations are designed for granulating bio-based fly ash. The granulated ash can be used as a forest fertilizer or a construction material in earthworks. The installation can also be used to granulate and stabilize other bio-based industrial side streams.

Our installations operate continuously, which means that the granulation and the input of supplementary nutrients can be adjusted during the process.

Our installation comes with a recipe for producing forest fertilizers for peat and mineral soils.

Granulation plants

  • Container-built
  • Three sizes according to the production volume: 3.5 / 5.0 / 7.0 tons/hour
  • Can be integrated into smaller power plants or built as an autonomously operated unit using silos for ash storage.



Granulation facility

  • Can be integrated into production facilities.
  • A solution tailored to the needs and the production plant of the customer.
  • The size of the granulation facility is customized according to the ash production volume.
  • An optimal solution for ash production volumes exceeding 8000 tons/year, or when there are distinct peaks in the ash production.

Sales service

You can contract us to sell the ash fertilizer on your behalf. You will be paid a fixed price for the sold ash as defined in the contract.

Selling granulated ash fertilizer though the service is simple and easy.

Hiilinielurekisteri (Carbon Sink Register) is a responsible and transparent intermediation service that brings together the added carbon sinks of the forests and the purchased voluntary emission compensations.

Ash fertilizer and ash fertilization are sold in to forest owners who wish to create additional carbon sinks to their forests through the increased growth brought about by fertilization. These added carbon sinks are bought by environmentally conscious companies and individuals to compensate their annual greenhouse emissions and to reduce their carbon footprint.

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