Gold Coast Desalination Plant

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Desal Plant Profile - Gold Coast Desalination Plant
Labelled aerial photo of Gold Coast Desalination Plant Labelled aerial photo of Gold Coast Desalination Plant
Total capacity: 133ML/day
Date commissioned: February 2009 [1]
Percent of water supply: 27% of South Eastern QLD
feed water temperature (low): 17°C290.15 K
62.6 °F
522.27 °R
Feed water temperature (high): 28°C301.15 K
82.4 °F
542.07 °R
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) [2]
RO passes: 2 [2]
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

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Water quality data

Physical & Chemical Properties
Turbidity: 7 NTU
Cations
Anions


References

  1. 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.
  2. 2.0 2.1 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

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