Stora Enso Oyj, Kemijärvi pulp mill

In 2010 Savaterra Greenfix at old pulp mill, polluted soil and water treatment.

Soil and groundwater in the elevated concentrations were observed, particularly regarding to oils and VOCs.

In order to save on transport costs and natural materials, thermal station was transferred to the factory site and all objects were restored during one summer. Savaterra Oy was responsible for excavation work, thermal treatment of contaminated soil and ground water collection and treatment system implementation.

Polluted soil was purified in total 50 600 t and the work took about 4 months. After thermal treatment concentrations were below the regulation (Government Decree 214/2007) lower specifications.

The advantages of the method chosen from the subscriber’s point of view were remediation in a short time and sure cleaning results.