The Renewable Materials Company

Paper and board production generates as a by-product wastewater sludge, composed of fibre residues.

“This sludge was earlier burned at the mill, but recently we have found innovative, material and energy efficient ways to reuse it," explains Juha Oksanen, Senior Sustainability Manager in Stora Enso's Consumer Board division.

The wastewater sludge from Imatra, Sunila and Ingerois mills in Finland is now utilised on farms instead of chemical fertilisers. This synergy reduces the environmental impacts of Stora Enso’s mills and those of the farms, with benefits for soils, watercourses, and the climate.

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