References

Stand-alone sludge drying unit for drying of dewatered sewage sludge

Scope

  • Stand-alone sludge drying unit for drying of dewatered sewage sludge
  • Design, build, start-up & commissioning, including 16,000 hours of integral maintenance
  • Sludge drying is based on proprietary EloDry® concept for low temperature sludge drying

Technical Data

  • Production capacity is 1,000 tons / year of dried sewage sludge
  • EloDry® low temperature sludge drying facility 1 x NT16
  • Input is 23 - 25 % ds dewatered sewage sludge
  • Sludge drying performance is > 90 % ds
  • Maximum evaporation capacity is 440 kg H20 / h

System & Technologies

  • Integrated design for civil, mechanical, electrical and automation works
  • Low temperature belt dryer including exhaust gas treatment based on 1-step chemical scrubbing and discharge to existing bio-bed facility
  • Screw conveyor systems for feeding dewatered sludge to the dryer
  • Screw conveyor systems for discharge of dried sludge to disposal facility
  • Disposal facility consisting of automatic loading for 2 containers
  • Thermal energy is provided by a sewage gas fueled boiler and hot water circuits and recuperation facilities
  • All safety (Ex) systems are included
  • Integrated electrical and control system for plant autonomous operation
  • Execution of all related civil works and underground piping
  • Erection of the pre-fabricated plant, including all on-site mechanical and electrical installatin works
  • Start-up and commissioning as well ongoing plant performance optimization

Special Features

  • The system is constructed as a pre-fabricated modular plant based on 40 ft container housings
  • The project includes an overall maintenance responsibility for 16,000 operating hours after final commissioning
  • Project is implemented under Dutch uniform turn-key conditions UAV_GC 2005

General Data

Client
Waterboard Vallei en Veluwe

Completion
Oct. 2016

Contract value
EURO 872,290