Sustainable land use is an increasingly important global issue, and especially important in a small country like Switzerland. As featured in Agri Magazine on the 5th January 2018, local farmers object to land being used for landfill sites, and are at an impasse with local authorities.
SELFRAG may hold the answer:
(Translated from French, click here for original article)
State-of-the-art Swiss technology: The Swiss company SELFRAG, based in Kerzers (FR), has developed a technology that fragments bottom ash by subjecting it to a 200,000-volt electric discharge.
This unique process, has been operating for a few months at the SAIDEF Waste to Energy plant at Posieux in the canton of Fribourg – the only plant of its kind in the world.
“We recover up to 98% of all metals present in the slag, reducing the amount of material that ends up in land fill or storage by 10 to 15%”, explains Frédéric von der Weid, the CEO of SELFRAG. “We can also decontaminate ceramics, glass, etc. With improvement of the process, we should be able to reduce the mass of slag from 40% to 50% in the next three years.”