Hardangerfjord, one of Norway's most intensive salmon farming regions, produces over 100,000 tonnes of farmed salmon annually in open cages, resulting in nutrient and sludge discharge into the fjord. This sludge, consisting of feed residues and faeces, poses a risk of eutrophication and negatively impacts the marine environment.
To address this, Framo has developed LiftUP technology to collect sludge from open cages, which is then filtered and stored. Ragn-Sells contributes technology to process the sludge into phosphorus, creating a sustainable feed ingredient and agricultural fertilizer. This circular solution aims to lower the climate footprint, reduce pressure on fjords, and increase fish yields while utilizing valuable raw materials and decreasing Europe's reliance on imported energy and nutrients.
