Bioenergy Insight
Summary
A multicrusher supplied by Borger is being used at an award-winning waste-to-energy project in the Outer Hebrides, Scotland.
The Creed Integrated Waste Management Facility on the Isle of Lewis processes salmon waste into biogas using anaerobic digestion. The facility manages waste from the island's 22,000 inhabitants and has grown to include a combined heat and power plant, electric boiler and thermal store, alongside the biogas plant, a wind turbine and a hydrogen system. The IWMF won the Scottish Environment business VIBES award for its innovative practices in 2019.
The Borger Multicrusher chops a 7-cubic-tonne batch per shift of coarse waste salmon. The machinery has enabled the Creed facility to integrate the fish with household food waste and garden waste for its biogas process. The technology guarantees the shred of waste salmon to meet stringent regulations for the safe use of digestate as a renewable fertiliser, by cutting the waste to the required maximum particle size of 12mm.
Donnie Macmillan, plant manager at the Creed facility, said: "Borger's Multicrusher works extremely well for us in a very harsh environment. Some salmon waste can be quite tough and abrasive so understandably we see wear on the cutters during our inspections, but that's perfectly understandable.
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