Gold Coast Desalination Plant

Desal Plant Profile - Gold Coast Desalination Plant
Labelled aerial photo of Gold Coast Desalination Plant

Total capacity:	133 ML/day
Date commissioned:	February 2009
Feed water TDS:	34000 mg/L - 39000 mg/L ^[1]
Product water TDS:	140mg/L ^[2]
Percent of water supply:	27% of South Eastern QLD
feed water temperature (low):	17°C
Feed water temperature (high):	28°C
Seawater intake system:	Submerged open sea
Pretreatment system:	Ferric sulphate coagulation, sulphuric acid injection (pH reduction), polyDADMAC, dual media pressure filters
RO operating pressure:	First pass RO operating pressure - 64 bar (45% recovery). Second pass - 15 bar (85% recovery) ^[3]
RO passes:	2 ^[3]
RO trains:	9, 3
Post-treatment system:	Lime stabilization, CO2, disinfection by sodium hypochlorite injection
Concentrate disposal:	Treated supernatant discharged to sea, solids centrifuged and landfilled
Energy consumption:	3.58 kWh/m3
Energy recovery:	Each RO train is fitted with dual-work exchanger energy recovery devices, which recover up to 97% of unused energy from the brine. Renewable energy certificates are being used to fully offset carbon emissions from the plant.
Capital cost:	$1200 million
Useful links:	http://www.water-technology.net/projects/gold-coast-plant/

Interactive process flow diagram

A more detailed PFD is available here. Test test test test test test test test test test test test test test test test test test test test test test test test test test test test

Water quality data

Physical & Chemical Properties
Turbidity:	7 NTU

Cations

Anions

References

↑ Billiton, BHP. Appendix H3: Comparisons With Other Desalination Plants Olympic Dams Supplementary EIS (pp. 2-5). [1] Accessed November 6th, 2014.
↑ Crisp, G. J. (2010). Desalination in Australia. Paper presented at the OC Water Summit, Grand Californian Hotel, Disneyland Resort. [2] Accessed November 6th, 2014.
↑ ^3.0 ^3.1 Bellizia, G. (2008). GOLD COAST DESALINATION PROJECT. Paper presented at the 33rd Annual Qld Water Industry Operations Workshop, Indoor Sports Centre, Carrara, Gold Coast. [3] Accessed November 6th, 2014

[billiton-1] Billiton, BHP. Appendix H3: Comparisons With Other Desalination Plants Olympic Dams Supplementary EIS (pp. 2-5). [1] Accessed November 6th, 2014.

[crisp-2] Crisp, G. J. (2010). Desalination in Australia. Paper presented at the OC Water Summit, Grand Californian Hotel, Disneyland Resort. [2] Accessed November 6th, 2014.

[bellizia-3] 3.0 ^3.1 Bellizia, G. (2008). GOLD COAST DESALINATION PROJECT. Paper presented at the 33rd Annual Qld Water Industry Operations Workshop, Indoor Sports Centre, Carrara, Gold Coast. [3] Accessed November 6th, 2014

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