To stop eutrophication of the sea, Gryaab treats the Gothenburg region waste water. The residue, sewage sludge, is turned into soil, fertilizer and a climate-friendly vehicle fuel. Each year, approximately 55,000 tonnes of sludge are produced at Gryaab. The treated sludge contains nutrients and mulch – what is needed for crops to grow. Some of the decayed sludge is composted and used as construction soil. About half of the sludge is hygienised and used as fertiliser, replacing artificial fertiliser.
Vehicle and fuel technologies
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ObjectiveTechnology
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ObjectiveTechnology
More Biogas Småland was formed in February 2011. The Company has 22 co-owners of which 18 are farmers in the near region of Kalmar.
More Biogas has a fermentation plant, the plant produce compressed vehicle fuel for local use. Raw material is manure from farmer´s farms and food waste from households in the neighboring municipalities.