Response Engineering designed, procured and installed all process plant for the works which includes a dual stream inlet works consisting of automatic screens, screenings washing and compaction and vortex type grit removal system.
Secondary treatment is effected by extended aeration in twin aeration tanks each equipped with a fine bubble diffused air system.
The twin tanks provide greater operational flexibility and ensure plant operation during maintenance. Two final clarifiers with half-bridge scrapers are provided.
Phosphorous reduction is achieved by ferric dosing and simultaneous precipitation. Sludge is thickened and dewatered by centrifuge to 20% DS.