Mundaring Water Treatment Facility Upgrades

Project Details

Project Title:
Mundaring Water Treatment Facility Upgrades
Acciona Trility
Project Number:
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The Mundaring Water Treatment Facility

The $300M Mundaring Water Treatment Plant (WTP) is a critical asset in the long term supply of safe and high quality water to Western Australia’s Goldfields & agricultural regions. Fusion worked with Acciona JV and the Water Corporation to design, fabricate and install various key water processing components in the WTP.

Built nearly 120 years ago, the Mundaring Weir supplies water to WA’s Goldfields and Agricultural Region, serving more than 100,000 people from Mundaring to Kalgoorlie. To cater for increasing water demand, meet the needs of future residential and industrial growth, and maintain current Australian drinking water guidelines (as well as overcome a decline in water qualities including colour, odour and taste) the Mundaring Weir Water Supply Improvement Project (MWWSIP) was developed to construct a number of new assets and carry out asset upgrades.

The Mundaring WTP is a key component of the MWWSIP. It has a current capacity to supply 165,000 cubic metres per day of drinking water, with an ultimate capacity to supply 240,000 cubic metres per day. The WTP uses dissolved air flotation filtration (DAFF) and biological activated carbon (BAC) to remove suspended solids and organic compounds from water.

Water treatment components designed by Fusion to meet specific requirements

Mundaring Water Treatment Plant Sodium Hydroxide Caustic Soda Storage

Fusion designed, fabricated, supplied and installed a range of key components in the water treatment process including: 

  • Large and small bore polyethylene pipe work supply, fabrication and installation
  • Fabricated Polyethylene (PE100 / HDPE) chemical storage tanks for a range of chemicals used in the water treatment process
  • Installation and assembly of UPVC / CPVC schedule 80 pipe fittings and valves for chemical dosing systems
  • Polypropylene chemical dosing panels to safely house dosing components
  • Fabricated polypropylene aerator dissolved air flotation (DAF) cones for the water clarification process

The project required plant components with a long design life to ensure minimal down-time and reduced need for replacement.  Fusion’s engineering team designed and installed components to meet the particular requirements of the Mundaring WTP,  maximising design life and providing a long-term and safe solution for the facility, including PE storage tanks with a 25 year design life, specific to the chemicals being stored at the WTP.

Fusion’s long history in designing and fabricating chemical dosing panels has allowed us to develop (and continually improve) the design to ensure maximum safety for the plant operators.

Mundaring Water Treatment Plant HDPE Pipe Spools
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Design, fabrication, supply and installation services for water treatment facilities

Chemical storage, pipelines, aeration and dosing are critical to successfully perform treatment functions at any water treatment plant. Fusion’s design, fabrication, supply and installation services enable us to deliver a range of high quality products and services to the water treatment and chemical processing industries across Australia and internationally.
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