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MIECF 2014

MIECF 2014. Advancements in Water Reuse in Western Australia. Presented by Ashley Vincent General Manager Planning and Capability Group Water Corporation of Western Australia. Western Australia. One third of Australia’s land mass North of the State Hot, wet, sparsely populated

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MIECF 2014

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  1. MIECF 2014 Advancements in Water Reuse in Western Australia Presented by Ashley Vincent General Manager Planning and Capability Group Water Corporation of Western Australia

  2. Western Australia • One third of Australia’s land mass • North of the State • Hot, wet, sparsely populated • South of the State • Warm, moderate winter rainfalls • Perth • Capital city • 1.9 million people

  3. Inflow to Perth Dams

  4. Summer 2013/4 – Hot and Dry Perth

  5. Water Forever Whatever The Weather

  6. Looking Forward % IWSS Sources - 2012 % IWSS Sources - 2022

  7. Water Recycling Journey 1992 – Albany Tree Farm 2014 – Mulataga Recycling scheme 1950’s – Merredin 2009 – Onsite recycling 2003 – McGillivray Oval 2016 – GWR Stage 1 Today 2000’s – Multiple regional recycling irrigation schemes 2010 - GWR trial begins 2022 - Full GWR Expansion 2004 – Kwinana Water Recycling Plant

  8. Increasing Water Recycling

  9. Groundwater Replenishment Trial Objectives • Technical feasibility • Policy and regulation • Community engagement and discussion

  10. Treatment Train Wastewater Treatment • Water suitable for discharge to ocean Ultrafiltration – Removes: • All suspended solids • Crypto, giardia, all bacteria • Larger virus Reverse Osmosis – Removes: • All viruses • All chemicals larger than a water molecule Ultraviolet Treatment • Final disinfection step • Guarantee of bacteria and virus removal • 4 • 2 • 4 • 2 • 1

  11. Groundwater Investigations • Objectives • Distance travelled • Pressure effects • Geochemical changes • Water Quality • 22 Monitoring Bores • Background: Jan 09 – Oct 10 • Ongoing sampling • Online monitoring: level, pH, conductivity • Geochemistry & geophysical investigations • Research & Technical Reference Partners • CSIRO & Curtin University • DoW Hydrogeologists, Rockwater

  12. Recharged Water - Distance Travelled (to 31 December 2012)

  13. Community Engagement http://www.watercorporation.com.au/

  14. Recycled Water for Drinking Dec 2012: Complete GWR Trial Jan 2013: Continue 1.5GL recharge to Dec 14 Stage One: 7GL pa Jun 2012: Planning & Construction Jun 2016: Recharge & abstraction Stage Two: +7 – 14 GL pa Aug 2016: Construction start Jun 2018: Recharge & abstraction • Stage Three: 7 – 14 GL pa Aug 2020: Construction start Jun 2022: Recharge & abstraction

  15. Recycling – Part of our Water Future

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