Overview

The limits of mechanical sludge drying sometimes create the need for thermal drying by water evaporation. SUEZ has developed a number of sludge drying processes that allow the sludge to be recovered for a multitude of uses as fertilisers, co-products for composting or as fuel for incineration plants.

Sludge drying processes offered:

• Evaporis LT (Low Temperature)
  • thermal drying in low temperature ranges
• Evaporis LE (Low Energy)
  • mixed drying that combines a thin-film dryer and a hot air belt dryer
• Heliantis
  • solar drying

Evaporis LT (Low Temperature): thermal drying in low temperature ranges