| Desal Plant Profile - Gold Coast Desalination Plant
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 Labelled aerial photo of Gold Coast Desalination Plant
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| Total capacity:
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133ML/day
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| Date commissioned:
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February 2009
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| Feed water TDS:
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34,000 mg/L - 39,000 mg/L [1]
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| Product water TDS:
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140mg/L [2]
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| Percent of water supply:
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27% of South Eastern QLD
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| feed water temperature (low):
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17°C
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| Feed water temperature (high):
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28°C
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| Seawater intake system:
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Submerged open sea
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| Pretreatment system:
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Ferric sulphate coagulation, sulphuric acid injection (pH reduction), polyDADMAC, dual media pressure filters
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| RO operating pressure:
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First pass RO operating pressure - 64 bar (45% recovery). Second pass - 15 bar (85% recovery) [3]
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| RO passes:
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2 [3]
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| RO trains:
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9, 3
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| Post-treatment system:
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Lime stabilization, CO2, disinfection by sodium hypochlorite injection
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| Concentrate disposal:
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Treated supernatant discharged to sea, solids centrifuged and landfilled
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| Energy consumption:
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3.58 kWh/m3
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| Energy recovery:
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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.
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| Capital cost:
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$1200 million
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| Useful links:
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http://www.water-technology.net/projects/gold-coast-plant/
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Interactive process flow diagram
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Water quality data
| Physical & Chemical Properties
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| Turbidity:
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7 NTU
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References
- ↑ Billiton, BHP. Appendix H3: Comparisons With Other Desalination Plants Olympic Dams Supplementary EIS (pp. 2-5). http://www.bhpbilliton.com/home/society/regulatory/Documents/Olympic%20Dam%20Supplementary%20EIS/Appendices/Appendix%20H3_Comparisons%20with%20other%20Desalination%20Plants.pdf Accessed November 6th, 2014.
- ↑ Crisp, G. J. (2010). Desalination in Australia. Paper presented at the OC Water Summit, Grand Californian Hotel, Disneyland Resort. http://www.mwdoc.com/OCWaterSummit/Presentations/GHD%20Ocean%20Desalination.pdf 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. http://www.wioa.org.au/conference_papers/08_Qld/documents/GeorgeBellizia_000.pdf Accessed November 6th, 2014
