Our concept of material efficiency covers waste reduction, the efficient use of raw materials, and the creation of business opportunities and revenues from waste and residuals. Stora Enso’s production processes generate various residuals and waste, the vast majority of which are reused. These materials include biomass fibres, ash from energy production and wastewater treatment sludge.
Source reduction principle
To produce more from less, Stora Enso uses raw materials as efficiently as possible.
Process water discharges
Water plays a central role in our board production processes. Water is also used for cooling machinery at the mills, for cleaning, as a carrier of energy in the form of steam, and as a medium to carry fibres through production processes. We strive to continuously reduce water use at our mills. Reducing the water demand of our mills helps improve the energy and material efficiency of our production. Our production processes also recycle water within mills wherever this is feasible, reducing the need for water intake.
All our wastewater is purified in our treatment plants before being released back into the environment. This is essential, since impurities in water discharges can harm ecosystems in lakes, rivers, and other natural water bodies. Stora Enso is committed to using effective wastewater treatment systems to ensure that the water we release is purified, ecologically safe, and meets all regulatory requirements.
Climate and energy
Stora Enso is continuously working to reduce carbon dioxide (CO2) emissions throughout its value chain. This involves promoting sustainable forestry, creating innovative products based on renewable raw materials, and developing cleaner and more efficient operations.
We work to improve our energy efficiency and to keep increasing the share of bioenergy in our total energy use. We also strive to reduce our electricity and heat consumption per tonne of pulp, paper, and board production.