2007 - Hunter Water - Edgeworth WWTW Upgrade in Detail
After a successful tender in late 2007 Gongues Consturctions was awarded this project at Edgeworth Waste Water Treatment Works. This contract involved the construction of a new reinforced concrete inlet works adjacent to the exsting one, the relocation of the rising mains to the new inlet works, installation of mechanical equipment, commissioning of new plant and demolition of the redundant inlet works.
Edgeworth WWTW - Civil Construction
The civil works involved
- Over 1500m3 of bulk earthworks
- Over 500m3 of concrete
- Over 1000m2 of formwork
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Drilling piles for the frow receival chamber
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The base of the flow receival chamber being prepared and the heads of the rising mains set in the floor.
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The bypass pipework in the background will allow us to divert flow when the rising mains have been connected.
Blinding and piles have been installed for the rest of the inlet works
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Forming up an outer wall of the inlet works
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Using high accuracy survey equipment to set out piles
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Formwork and reinfrocement being installed for the high flow bypass on the right.
The flow receival chamber is straight ahead with the bypass pipework connection in the end.
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Formwork and reinforcement on the end of the inlet works. The round grit vortex can be seen on the left and the flume flow channel can be seen on the right while the middle channel is for bypassing the grit vortex.
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The flow receival chamber with the waterproof membrane installed.
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Stripped concrete in the flow channel just downstream of the flow receival chamber
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Hydrostatic testing of the high flow bypass
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Edgeworth WWTW - Mechanical, Electrical and Control Systems
In addition to the civil works Gongues installed and a range of mechanical equipment including;
- 5 x shaftless screw conveyors
- 2 x slidegate actuators
- Washpactor
- Grit classifier
- Grit paddle
- Grit pump
- 2 x blowers for odour control
- 2 x step screens
- 1 x actuated penstock
- 8 x manual penstocks
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Installation of stepscreen in channel
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Screw conveyor installed to catch screenings from step screen
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Stepscreens, penstocks and conveyors all installed.
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Slidegate actuators mounted on underside of screw conveyors.
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Commissioning of the washpactor
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Actuated penstock installed.
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Grit paddle (orange motor) with the blue grit pump and ABS Grit line installed.
The odour extraction pipework can be seen in the foreground with the droppers going through the covers.
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Grit classifier and disposal bin.
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