Benefits

Overview of benefits - sludge2energy process

  • Combined drying and thermal utilisation of sewage sludge in a fluidised bed furnace
  • Modular design for throughputs from 4,000 to 7,000 t DS/a as single-line system, applicable for 200,000 up to 300,000 PE sewage treatment plants
  • Auto-thermal (self-sustaining) combustion and drying, no external thermal energy required
  • Low invest and operational costs due to the optimised concept of thermal drying and utilisation in a compact design
  • Optimal sewage sludge quantity and mass reduction
  • Minimised sewage sludge transport costs
  • Long-term cost and disposal reliability
  • Production of recycling material that can be reused for the most part (e.g. by construction industry)
  • Dry flue gas cleaning process without the need for water and without generation of wastewater
  • Low pollutant emissions, significantly below legal limits (e.g. BImSch, TA Luft)
  • Minimum space requirement
  • Availability: 8,000 h/a
  • Fully automatic operation 24 h/d, 7 d/week
  • High flexibility of sewage sludge utilisation
  • Production of phosphorus-rich sewage sludge ash, therefore optional phosphorus recycling