Thames Water - Bicester WwTW

Scope of services

  • Replace existing diffusers with Lift Out Grid FBDA
  • Replace existing pipework
  • Remove existing blowers
  • Design
  • Manufacture
  • Installation
  • Commission

Scope of delivery

  • Install new blowers and pipework
  • Install Pipe Bridge
  • Install new air header pipework, associated valves and instruments
  • Install guides and Lift Out Grids
  • Install DO & MLSS probes
  • Install mixer into Anoxic Zone on new lane


  • Grade 304 stainless steel below TWI, Grade 316 above
  • 4 x lanes, 7 x Lift Out Grids per lane, total 28 Lift Out Grids
  • 252 Diffusers per lane, total 1008 Diffusers
  • Remove and disposal of 5 existing blowers, replace with 3 x Aerzen GM90 blowers

Technical data

  • Each lane is single pass with an anoxic zone for the first 12% of volume
  • The peak air requirement is 7,500 Nm3/h
  • The Flow to Full Treatment is 367 l/s

MWHT on behalf of Thames Water

July 2021