Finnish company, Gasum, is evaluating the possibility of using industrial waste water to produce biogas at a large scale. The study is taking place at the Stora Enso Nymölla Pulp and Paper plant in Sweden. The aim is to produce biogas primarily for use in the transport sectors in Sweden.
It is planned that Nymölla will lend its wastewater to Gasum, which will convert the organic residual in it to biogas. The yield has been calculated to be up to 90 GWh per year, which would make this the largest biogas plant in Sweden.
Nymölla will receive cleaner water in return, while at the same time their cost for chemicals will be lower, as will energy consumption, since fewer aeration ponds will be required.
Gasum has been granted an investment subsidy for the Nymölla project of €12.4 million ($1.5 million) by the Swedish Environmental Protection Agency under the Climate Leap (‘Klimatklivet’) program. The company’s vision is to build a Nordic gas ecosystem where the circular economy is at the core.
The total investment volume of the project is around €27 million ($32 million)and Gasum is now proceeding into the investment decision phase of the project.
”We’d like to thank the Swedish Environmental Protection Agency for the positive investment support decision. This will support our efforts to make the circular economy reality with the Stora Enso Nymölla Pulp and Paper mill. The biogas plant will be a sustainable solution for the processing of waste water”, says Markus Olsson, Managing Director of Gasum AB.
Photo KUJALA LAHTI BIOKAASULAITOS, BIOGAS PRODUCTION FACILITY
Courtesy Gasum (Not facility referred to in story)