The 9.8 ML/d ADWF Nambour Sewage Treatment Plant upgrade D&C contract was performed by Downer-Tenix. The upgrade included:-

• Inlet Works – coarse screens, fine screens, grit removal
• Bioreactor – bioselectors, anaerobic, anoxic and aerobic
  zones with Koch-Puron ultrafiltration membranes
• Blowers
• Aerobic digestion, two centrifuges and sludge hopper
• Chemical dosing (aluminium sulphate, polymer, citric acid, sodium hypochlorite, sodium hydroxide)
• Septage receival facility
• Odour control unit
• Service water system
• Compressed air system