Landbank security – cross sector collaboration: PRESENTATION ONLY

Foster, D., Huber Technology, UK


The Status Quo

  • Circa 73% of municipal sludge is treated via Anaerobic Digestion & around 22% via Lime Stabilisation
  • Smaller volumes of sludge are also treated by thermal drying & composting with green waste
  • Currently Circa 93% of sludge is recycled to agricultural land as biosolids Some is incinerated, used for industrial use (e.g. as a fuel for cement production – more later) or for land reclamation/restoration
  • Digestion of sludge in the UK generates enough renewable electricity to supply around 200,000 homes – Significant potential to increase this – Needs to become a vital tool in the toolbox on the road to Net Zero
  • Financial value to UK agriculture of nutrients in biosolids is around £60m/annum – It’s worth around £330.00 per hectare in nutrients alone
  • UK Government considers biosolids recycling to agricultural land in most circumstances to be the Best Practicable Environmental option & is the most sustainable practice aligning with Government Waste Hierarchy

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