1 Bligh St

Project overview

1 Bligh Street combines remarkable architecture with best practice sustainability.

Located in the heart of Sydney’s CBD, the 29 storey, 47,000 square metre tower provides spectacular views of Sydney Harbour.

1 Bligh Street is an iconic feature of the Sydney skyline, combining remarkable architecture with best practice sustainability, such as the double skin facade and a naturally ventilated, full height atrium.

  • Our Client: Dexus and Cbus Property
  • System Capacity: 100,000L per day
  • Recycled Use: Toilet Flushing and Cooling Tower make-up water
  • Project Completion: 2012

Project solution

The project boasts a double skin façade along with a naturally ventilated full height atrium and of course, a complete Aquacell blackwater recycling plant. In fact, Aquacell was awarded the first combined private network/retailer’s water recycling license in New South Wales for the 1 Bligh Street development and in the process, we made 1 Bligh Street Sydney’s first high-rise commercial office tower to incorporate blackwater recycling technology.

The blackwater plant recycles and saves 100,000 litres of drinking water a day, which equates to over 22.7 megalitres per year.

Wastewater is mined from the nearby sewer main to supplement the building’s blackwater flow and in addition to being treated to the highest recycled water starndards approved by NSW Health, it also meets 100% of the building’s non-potable water demand.

Recycled water is distributed around the building for non-drinking purposes, with 75,000 litres used for cooling tower make-up and 25,000 litres for toilet and urinal flushing.

    Outcome

    Aquacells turn-key and comprehensive approach included:

    • regulatory approvals,
    • design,
    • project management,
    • installation,
    • commissioning
    • an ongoing operations and service contract.

    Since 2012, the plant has been operated and maintained by Aquacell and for the entire time, has not experienced one day of downtime or outage and has consistently passed 100% of annual iPart audits and testing with full compliance.

    The Aquacell team remain immensely proud of the plant at 1 Bligh St.