Water Educators Network. Meeka Bailey DSE Capital Projects Division 9 February 2012

Transcription

1 Water Educators Network Meeka Bailey DSE Capital Projects Division 9 February 2012

2 Outline Desalination globally and locally Project scope and features Project development Construction update Questions

3 Desalination globally and locally

4 Desalination globally and locally How many desalination plants are there around the world? About 15,000 Where are they? Saudi Arabia, UAE, Spain, USA, China, Algeria, Australia, Israel, India, Qatar, Japan, Korea etc How much water do they produce? GL per annum This includes: 15,000 GL pa for municipal use GL pa by reverse osmosis What is the largest desalination plant in the world? Ras Azzour, Saudi Arabia, over 1GL/d

5 Desalination globally and locally How many desalination plants in Australia? About 240 Six large-scale plants for urban supply: NSW Sydney 91 GL pa (250 ML/d) QLD Gold Coast 48 GL pa (133 ML/d) WA Kwinana 45 GL pa (130 ML/d) WA Binningup 100 GL (274 ML/d) SA Adelaide 100 GL (274 ML/d) VIC Wonthaggi 150 GL (444 ML/d)

6 Project scope and features

7 Key features Rainfall independent water security Largest desalination plant in Australia 150 GL pa, expandable to 200 GL pa Flexible water ordering - from 0 to 150 GL in set increments High quality desalinated water to complement Melbourne s catchment supplies Two-way 84km underground transfer pipeline Connects South Gippsland and Westernport to Melbourne catchment water and desalinated water

8 Key features Long intake and outlet tunnels to protect coast and beach World class architecture and landscaping living green roof and coastal park Underground 87km power supply Set highest benchmark for renewable energy offsetting 100 per cent of operational energy offset Fibre optic cable for local broadband Economic boost during construction around $1.1 billion boost to GSP 4750 FTE jobs plus local contracts and jobs during construction

9 Key features MARINE TUNNELS PLANT PIPELINE POWER

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13 Seawater intake tunnel A long tunnel (approx 1.2km long) transports seawater to the plant site. Screening Seawater is screened and particles removed. Pre-treatment filtration Seawater is filtered to remove remaining solids. Reverse Osmosis Filtered seawater passes through two stages of reverse osmosis, where it is pushed through ultra fine membranes under high pressure. Fresh water passes through, leaving seawater concentrate behind. Remineralisation Desalinated water is remineralised to meet Australian Drinking Water Guidelines and Victorian health requirements. Drinking water is stored before it is distributed into the Melbourne and regional water networks, where it may be blended with water from existing catchments, and then pumped into water supplies. Outlet tunnel A long tunnel (approx 1.5km long) transport seawater under the dunes and coast. Seawater is diffused into the ocean with specially designed nozzles.

14 Water quality The desalination process reduces salt and minerals from seawater It is like pure rain water before it runs over rocks and through rivers to catchments Desalinated water is then remineralised so it is more like catchment water supplies Desalinated water quality is high, complements Melbourne s catchment supplies Standards set by water authorities in consultation with Dept of Health Standards written into the contract with AquaSure Meets Australian Drinking Water Guidelines and Victorian health requirements Water quality standards are met at the plant site no need for blending Water quality is measured at each delivery point on the transfer pipeline

15 Water in the network COMMISSIONING High quality water from the desalination plant will gradually enter the existing network as part the plant s commissioning process later this year During commissioning, water enters the system through Cardinia Reservoir From Cardinia Reservoir water can be transferred through Silvan Reservoir to the broader network Water retail areas that may receive some desalinated water during commissioning, depending on system management, include: South East Water - Western Water Yarra Valley Water - Barwon Water City West Water

16 Water in the network OPERATION During operation, water from the desalination plant will enter the network through Cardinia Reservoir and from offtakes on the transfer pipeline. The two-way pipeline means areas in South Gippsland and Westernport can also access water from Melbourne s catchment supply as well as desalinated water Water retail areas that may received desalinated water during operation, depending on system management, include: South East Water - South Gippsland Water Yarra Valley Water - Westernport Water City West Water - Barwon Water Western Water The amount of desalinated water in the network depends on the amount ordered on 1 April each year

17 Project development

18 MDW-88 # 0 MDWC MDWC MDW-31 MDW-54 MDWC - 036!. MDWC #!. MDWC MDT "/ MDW-29 MDWC - 017!. MDWC MDWC MDW-39 # MDT MDW-60 "/ #!. MDWC MDW-35 MDT - 1 MDWC MDWC # MDWC !. "/ # #!. 0 0 MDWC MDW-89 MDT - 8 MDW-32 MDWC MDW-55 #.! MDWC "/!. MDWC MDWC #!. MDWC MDW-40 MDWC MDW-67 MDWC MDWC MDWC MDT - 5 "!. MDWC MDW-90 MDWC MDT - 13 MDW-36 / MDT - 2 MDW-61 MDWC MDWC MDWC "/ #!. MDWC "/ # 0 #!. MDWC MDW-45 MDT - 9 MDW-33 MDWC MDW-56 MDWC MDWC "/!. MDWC MDWC #!. MDWC MDW-41 MDT - 6 MDW-30 "/ MDWC MDWC - 019!. MDWC MDWC MDW-99 MDW-50 MDT - 14 MDW-37 MDT - 3 MDW-62 "/ #!. MDWC "/!. MDWC MDWC MDW-91 MDWC MDT - 10 MDW-34.! MDW-46 MDWC MDW-57 MDWC "/ #!. MDWC #!. MDWC MDW-96 0 MDW-97 MDW-42 MDT - 7 MDW-68 MDWC MDW-51.! MDWC "/ MDWC MDW-100 MDW-98 MDT - 15 MDWC MDWC MDWC MDW-38 MDWC MDW-63!. "/!. MDWC - 083!. MDWC MDW-74 MDW-47 MDT - 11 "/ MDW-92 MDWC MDWC MDWC MDWC MDW-58 MDWC - 034!. MDW-43 MDW-69 MDWC MDW-52 MDWC MDWC #.! MDWC MDW-93 0 MDT - 16 MDWC MDWC - 059A "! /. MDW-80.! MDWC MDWC MDW-64 MDWC MDW-48 MDWC MDW-75!. MDWC MDW-59 MDWC - 072!. MDWC MDW-44 MDWC MDW-53 MDW-70 MDWC - 097! MDWC MDWC - 060! MDW-81 MDWC MDW-65 MDWC - 085! MDWC MDW-101 MDWC MDW-102!. MDWC MDWC MDW-76 MDWC MDW-49!. MDW-86 MDWC MDW-71 #.! MDWC MDWC MDWC MDWC MDW-66 MDWC MDW-82 MDWC # 0!. MDWC MDW-87 MDWC MDW-77 #. 0! MDWC MDWC MDWC MDW-72 MDWC MDWC MDW-83 MDWC MDWC MDW-78 MDWC MDWC MDW-73 MDWC MDW-84 MDWC MDWC MDW-79 MDWC MDWC MDW-85 MDWC Project timeline Since 2007 Feasibility research Consultation Environmental investigations Planning investigations Tendering Contract award Approvals Design and construction Operations and maintenance NOW 27 years MDW-94.. MDW-95

19 Comprehensive approvals Key project approvals obtained: Environment Effects Act (Victoria) Aboriginal Heritage Act (Victoria) Coastal Management Act (Victoria) Environment Protection Act (Victoria) Planning and Environment Act (Victoria) Environment Protection and Biodiversity Conservation Act (Commonwealth) Native Title Act (Commonwealth)

20 Key parties

21 Visual amenity Community concern regarding visual impact of industry on coast State set specific visual amenity requirements in scope and contract State Government Architect involved in setting requirements PPP enables private partner to be innovative in design approach AquaSure design low profile, living roof, 225ha revegetated coastal park

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23 Construction update

24 Construction update Progress update October 2011 Engineering design complete 100% pipeline laid 100% underground power cable laid 100% intake and outlet tunnels excavated Marine structures complete 97% of concrete poured across plant site 97% of structural steel erected across plant site 96% of GRP process pipe installed 100% of reverse osmosis membrane racks installed 57% of sewer and waterworks completed Over 3600 workers (peaked at 4200) $1.2 billion contracts awarded (62 % to Victorian companies, 17 % Interstate)

25 Aerial overview of plant site.

26 Plant site aerial

27 Aerial

28 Plant site aerial

29 Reverse Osmosis Building

30 Inside Reverse Osmosis building.

31 The green roof

32 Potabilisation area

33 Filtration

34 Booster pump station.

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39 Questions For more information