Preventing salt from entering ground waters
Many environmental problems arise when salt gradually dissolves into water systems from landfills. Excessive salt contributes to erosion risk at landfills, making them unstable. In the worst case scenario, salt dissolves all the way to groundwater, which can cause a significant risk of salinisation.
In the first stage of our new refining process, the salt is washed away from the ash and dissolved into the open sea through a discharge pipe. This only slightly raises the salinity of the seawater in the immediate proximity of the discharge pipe.
The old ways of treating fly ash are not the best available technology
Mixing the ash into cement or treating it through stabilisation needs does not meet the EU criteria for best available technology. Neither one of these treatments meet the current landfill criteria without special permits that need to be notified and motivated to the EU. In stabilisation, waste is diluted by mixing it with other wastes, which is against waste legislation principles. Stabilisation methods also produce a high risk of dust emissions with the hazardous, extremely light dust material.