In infrastructure projects, replacement and deposition of sulfide soils (ss) requires long transportations to landfills, which currently lack alternatives. This project aims at introducing new handling alternatives to increase the possibility of reuse or to deposit it locally.
This would reduce costs (e.g. handling costs), transport distance and the related CO2 emissions could be brought down to less than 50 %.
In respect of the more than 100,000 tons handled annually, this reduction have a high economic and environmental potential. The actors in the project are Trafikverket, Dåva DAC, Skellefteå Municipality, Swerock, Luleå University of Technology, Ramböll and Ecoloop.
The main scope of the project is:
- Classification of sulfide soils based on acidification potential and rate.
- Study of applications for the use of sulfide soils with regard to practical, environmental and geotechnical properties and environmental system perspective.
- Assessment of the effect of earthwork in acid sulfate soil areas on the reciepeint
- Demonstration of the use of the classification on full-scale alternative management options
- Communicate and discuss the results with the key actors and stakeholders, environmental authorities included, in order to present scenarios allowing increased reuse and local deposition.