Optimization of new circular economy-based soil conditioners from KIP area and bioeconomy side streams and their testing in special plant cultivation

The KIP-Kierto project aims to promote the realization of a circular economy in the Kokkola industrial area by increasing the utilization of side streams in soil improvers. The project investigates the potential of inorganic side streams as soil improvers in the Kokkola Industrial Park (KIP) area. In fertilizer component tests, nutrients are bound from nitrogen- and/or phosphorus-rich side streams such as farm bio-sludges by mixing them into a slow-dissolving soil conditioner with the help of inorganic side streams from industry. As a result of the KIP_Kierto project, guidelines to produce optimized side stream-based soil conditioners are created, and their suitability for cultivating selected plant species in mineral soils will be studied. In the long term, soil improvers based on recycled materials enhance the circulation of materials and reduce the use of virgin raw materials.

Project is funded by Keski-Pohjanmaan liitto, Kokkolan kaupunki and the participating entities.