Gasum and Stora Enso to produce biogas from mill wastewater

In Sweden, production of Multicopy paper is about to contribute to the biofuel production in Sweden. The energy company Gasum and Stora Enso will together turn waste into renewable green energy.

Wastewater can be a challenge for mills. Vast volumes of process water containing organic residues need to be treated. At the Stora Enso’s Nymölla Mill, the water treatment facility is the size of ten football fields, and each holding basin is seven meters deep.