• Asia Pacific Rentals & Services
  • 08/09/2025

REVERSE OSMOSIS AND FILTRATION SYSTEM UPGRADE FOR DENHAM

WestWater (a Centurion company) delivered a full replacement reverse osmosis and filtration system to overcome ageing infrastructure at the Denham water treatment plant (WTP). The upgrade restored reliability, improved water quality compliance, and ensured safe, efficient drinking water for the local community.


The Client

Our client engaged the team to address urgent reliability issues at the Denham water treatment plant, which provides drinking water for the local community in Western Australia.

Client Challenges

The Denham water treatment plant was experiencing significant issues due to ageing infrastructure:

  • The sand filters were damaged beyond repair and needed urgent replacement
  • One of the site’s Reverse Osmosis (RO) systems was old and in poor condition, requiring replacement to restore treatment performance.

The client required a modernised solution that would restore reliability and ensure ongoing compliance with water quality standards.

Our Solutions

Centurion delivered a full replacement Reverse Osmosis and Filtration Plant, consisting of:

  • Two new GRP multi-media filter vessels
  • Upgrades to an existing RO Skid (A)
  • Complete replacement of RO Skid (B) with a new unit, designed, manufactured, and installed by our subcontractor
  • A new standard single duty gas chlorination train for reliable chlorine dosing.

Additional enhancements included:

  • New ejectors and vacuum transmitters for the existing chlorination system
  • Automatic flow-paced control for precise chlorine dosing
  • Standby pumps with motorised valving for improved reliability
  • VSD control and pressure monitoring on the upgraded RO Skid A for flexible and efficient operation.

Results

  • Restored treatment plant reliability with modern reverse osmosis and filtration technology
  • Enhanced water quality assurance through automatic chlorine flow-paced control
  • Improved system flexibility with standby pumps and motorised valving
  • Reduced operational risks and maintenance needs with new, durable filtration and RO infrastructure.

Conclusion

The Denham water treatment plan upgrade highlights WestWater's (a Centurion company) ability to deliver tailored water treatment solutions that extend infrastructure life, restore reliability, and ensure safe drinking water for regional communities. By combining new filtration, reverse osmosis technology, and improved chlorination systems, we provided a future-ready solution for the client.

Contact Information

For more information, contact the team at E: sales@westwater.com.au, T: +61 8 9248 2411 (Perth, Western Australia), T: +61 7 3806 2900 (Brisbane, Queensland)

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