Oxley Waste Water Treatment Plant (WWTP)

Construction of the BWEA upgrade to the Oxley Creek WWTP was completed in February 2007.

  • The upgrade has reduced the nitrogen content in the treated wastewater from 1170 kilograms per day to 112 kilograms per day, a reduction of 90%.
  • The Australia-first thermal hydrolysis system is now in operation and treats biosolids to a high standard, making them readily usable for soil and fertiliser applications.
  • Methane gas produced during the treatment process assists in producing energy for the plant, reducing the need to source energy from external power suppliers.
  • A water tanker collection area has been established at the plant to provide the treated wastewater for use in construction activities, including dust suppression.


Power Electric Switchboards was awarded the contract to design and manufacture the Motor Control Centres for the BWEA upgrade project at Oxley WWTP, as follows:

  • Bioreactor 05 & 06 MCC
  • Blower Switchboard
  • Final Area MCC
  • Final Settling Tank MCC’s 09 to 13
  • RAS MCC
  • Sludge Handling MCC
  • WAS Dewatering MCC
  • Odour Control MCC