Pilot Project in Umeå Tests Steam Treatment to Eradicate Invasive Lupins

Umeå launches pilot project to test steam treatment against invasive lupins.

Key Points

  • • A pilot project in Umeå tests steam treatment to eradicate invasive lupins.
  • • The treatment involves applying hot steam to 1,300 tons of contaminated soil.
  • • The initiative is a collaboration between Svevia and Trafikverket.
  • • Cost-effectiveness of the treatment will be evaluated for future soil use.

In Sweden, a significant pilot project is being launched in Umeå to address the issue of invasive lupin plants through an innovative steam treatment method. This initiative is aimed at eradicating lupin seeds from contaminated soil, as the plant poses ecological challenges in various regions.

The trial, led by Kristina Svahn, site manager at Svevia, involves applying hot steam to approximately 1,300 tons of soil identified to contain lupin seeds despite being free from pollutants. This partnership between Svevia and Trafikverket is crucial, as both organizations often encounter lupins during their roadwork projects. The project draws inspiration from earlier drainage work in Nordmalings municipality, where extensive lupin contamination was discovered in seemingly clean soil.

While the treatment's cost-effectiveness is under scrutiny, Svahn highlighted its potential value in preparing the soil for future use, thus emphasizing ecological restoration. The outcomes of this project may not only contribute to eradicating invasive species but also provide insights into financially viable remediation options for similar environmental challenges in Sweden.