Energy Factory

WWTP Walcheren


  • Design and Construct (UAV-gc)
  • Process technology design Anammox® side stream treatment
  • Detailed- and Construction design
  • Construction civil works
  • Start-up & Commissioning
  • Plant Proving period
  • Maintenance (1 year)

Technical Data

  • CHP system 2 x 330kWe
  • Biogas pre-treatment 250 Nm3/hour
  • Nox emission < 340 mg
  • Anammox® side stream treatment 238 kg N/day

System & Technologies

  • Modernization of existing sludge line components (pumps, valves ect.)
  • Modification final dewatering and new PE preparation and dosing
  • CHP based on Senergie 330 modules with Liebherr gas engines
  • Gas boiler and heat distribution
  • Biogas cleaning installation for H2S and Siloxane removal (biological desulfurization with downstream activated carbon filters)
  • Anammox® side stream treatment 238 kg N/day
  • Controlled struvite precipitation based on B-Phos concept

Special Features

  • Lot 1 (side stream treatment) and Lot 2 (sludge line) both awarded to ELIQUO based on best price / quality ratio
  • ELIQUO operating as main contractor with coordination duty towards other project stake holders
  • Desulfurization of biogas based on a biological principle

General Data

Waterschap Scheldestromen

Planned Q3 2018

Contract value
EUR 4.4 million