References

Demon® Rejectwater treatment

WWTP Echten, The Netherlands

Scope

  • Rejectwater treatment facility
  • Design, delivery and installatin of all Mechanical and Electrical systems
  • Process control and automation
  • Demon® nitrogen removal technology

Technical Data

  • Nitrogen load 112 ton/year, 320 kg/day
  • Concentration Nkj 800 - 1500 mg/l
  • Max. inflow 70m3/hr
  • Removal efficiency > 80%

System & Technologies

  • Combined feed - (600m3) and effluent buffer (400m3)
  • Demon® reactor 450m3
  • Plate diffusor aeration (Messner) and blowers
  • Submersible pumps and mixers
  • Stainless steel and HDPE piping
  • Electrical and process automation systems
  • Mechanical and Electrical installation works
  • Process instrumentation incl. analysing equipment

Special Features

  • At WWTP Echten, produced sludge's are digested in 2 stages (thermo + mesophilic), processed by the Airprex® system and dewatered by means of a chamber press

General Data

Client
Sweco / Waterboard Reest & Wieden, The Netherlands

Completion
July 2013

Contract value
EUR 356,000