Sydney Desalination Plant
Project: Sydney Desalination Plant.
Location: Kurnell (NSW).
Owner: The New South Wales Government.
(leased to Sydney Desalination Plant Pty Ltd).
Process: Multi-Media Filtration, followed by Desalination by Reverse Osmosis.
Influent: Seawater, with 32,000ppm – 41,000ppm TDS.
Capacity: 250 Megalitres per Day (MLD);
approximately 15% of Sydney’s Water Supply.
Cost: Approximately A$1.8 billion.
History: As a result of the decline in water levels (to below 55%) in the storage dams supplying Sydney’s water requirements in the early 2000s, Sydney Water received, in 2006, approval, from the New South Government to proceed with the construction of a Seawater Desalination Plant, to “drought proof” Sydney’s Water Supply.
After Pilot Testing, Coarse Dual-Media Filtration, utilising C&S Brand Australian Filter Coal, was preferred as the Pre-Treatment Process, to be followed by desalination using Reverse Osmosis Membranes.
James Cumming & Sons supplied 2,140 cubic metres of C&S Brand Australian Filter Coal, Effective Size = 1.7 ± 0.05m, Uniformity Coefficient 1.3 maximum, for this project. The product was delivered on time, and wholly within specification.
The plant commenced operation in January 2010.