The utilisation of side strams is split up to material use, fertilizers and soil improvement, industrial use and energy. The share of fertiliser use has been increasing constantly during the past five years. At the moment 8% of Metsä Group’s utilised side streams are used as fertilisers or landscaping materials.
Cooperation with smaller and industrial partners is key to creating efficient ecosystems as part of sustainable bioeconomy and circular economy. Resource efficiency and a broad network of partners enables us to make bioproducts for a variety of end uses: wood products, pulp, board, papers, wood-based textiles, composite materials for the electronics industry, and raw materials for paints, tyres, perfumes, agriculture fertilisers and many more. With collaboration and partners, Metsä Group aims to achieve its objective of 100% utilisation of production side streams.
Constantly minimising landfill waste
The annual amount of landfilling has decreased approximately 20% over the last five years. Metsä Group has still work to do in developing solutions for utilisation of green liquor dregs and minimising its landfilling. Being able to take advantage of the full potential of production side streams requires scientific research and cross-industry collaboration.
Our largest side stream fractions are green liquor sludge, ash from energy production and lime ash from pulp production. Other by-products can be used as fertilisers, in landfill construction and in landscaping, among other purposes. We also sell by-products to our partners for further processing.
It is our principle to use raw materials efficiently. Our priority is always to favour the recovery of waste and by-products and to minimise the amount of waste going to landfill.