Country: Germany, Finland, Sweden, Italy, Spain
Category: Energy intensive industries
Project promoter: Finn Recycling Oy (FI)
Finn Recycling’s recycling service for waste foundry sand has been in commercial use for foundries in Finland since 2018.
After several years of research, Finn recycling has developed and patented a process that combines thermal and mechanical methods in one single modular unit. This breakthrough innovation allows the use of thermal-mechanical regeneration for even the most difficult sand types to be reclaimed. Currently, alternative systems that use thermal fluidized bed regenerators cannot regenerate green sand without a two-stage mechanical treatment preceding and following the thermal process, which removes the clay attached to the surface of the sand grains.
Finn Recycling uses a unique Sand-as-a-Service (SaaS) model, which has the advantage to be asset-light, to require low investment, and be an easy-to-start solution for customers, who can test the service in advance and can profit from quick installation without the need for a long production break. Thanks to this new system, the need for new, virgin sand is reduced by up to 90%, with consequent decrease in sand acquisition costs, as well as significant improvement of waste sand problem and the foundry’s CO2 footprint.
This service is now being expanded in the first phase to Germany, Austria and Switzerland.