Materials dried by Cogen’Air

Industrial and domestic waste

Wastewater treatment plant sludge (WWTP)

Green / organic waste

Assets for the sludge and waste sector

Waste enhancement

  • Dry waste to transform it into fuel

Energy enhancement

  • Increase calorific value of waste to be burnt

Reduce transport and treatment costs

  • Reduce weight by taking out water

Reduce land usage

  • Solar power reduces facility size

Respect the environment

  • Decrease carbon footprint and GHG emissions
  • Improve spraying capacity (sludge)

Reduce nuisances

  • 100% silent solution, reduces odours around the farm and during spreading (sludge)

Why dry sludge?

  • Reduce their volume and associated storage and transport costs: drying to dryness up to 90%, will reduce the mass by 75 to 80%.
  • Stabilisation : reduce the fermentable capacity of sludge and reduce odour nuisance.
  • Sterilisation : Reduce pathogens in sludge to sub-detectable levels
  • Shaping the end product : obtain a granular residue, easier to handle and transport while increasing the acceptability of the product by the general public (dry sludge looks similar to fertilisers used by the agricultural world/farming world).
  • Maintain the fertilizing properties of sludge
  • Achieve legal minima for burial (levels of admission between 30% to 35% of dryness depending on the sludge). Only drying can achieve this humidity level.
  • Achieve technical minima for incineration, for example. Eliminating water reduces the energy deficit in the incinerator, achieves the thermal self sustaining properties of the sludge and increases its calorific value.