Reducing Carbon Footprint of Desalination€¦ · Reducing Carbon Footprint of Desalination...
Transcript of Reducing Carbon Footprint of Desalination€¦ · Reducing Carbon Footprint of Desalination...
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Reducing Carbon Footprint of Desalination International Conference on Desalination, Environment and Marine Outfall Systems 13 April 2014 Sultan Qaboos University, Muscat, Oman
Neil Palmer, CEO
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Australian desalination in the 1890s using renewable energy – WA goldfields
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Coolgardie,
Early Australian desalination
This unit produced 0.5 ML/d and used 100 tonnes of firewood each day
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The National Centre of Excellence in Desalination Australia • Established in 2009 • $20m funding over 5 years from
Australian Government’s Water for the Future Initiative
• $3m funding from WA Government
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Research Partners
Administering Organisation
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One of the NCEDA objectives for desalination:
“researching ways of efficiently and affordably reducing the carbon footprint of desalination facilities and technologies”.
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Rockingham Desalination Research Facility
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“I love a sunburnt country A land of sweeping plains Of ragged mountain ranges Of drought and flooding rains” Dorothea Mackellar
Australia’s Millennium drought 1997 - 2009
Wivenhoe Dam, Brisbane January 2011
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Perth
Adelaide Melbourne
Sydney
Brisbane
Gold Coast
Major Australian desalination plants
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Perth 1
Perth 2 Gold Coast
Sydney Adelaide Melbourne
The Big Six Australian Desalination Plants
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Australia’s current major desal plants
PLANT MLD MGD • Perth SDP 145 38 • Gold Coast 125 33 • Sydney 250 66 • Adelaide 300 78 • Perth SSDP 300 78 • Cape Preston 140 47 • Melbourne 450 118 TOTAL 1710 458
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Cape Preston desalination plant - Citic Pacific magnetite mine Pilbara WA
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City Water Consumption 02/03*, GL
Desal Capacity, ML/D
Desal Capacity GL/y
Percent Desal
Sydney 634 250 91 14% Melbourne 479 450 164 34% Brisbane SWRO 223 125 46 20% Brisbane Reuse 223 232 85 38%
Brisbane Total 223 357 130 58% Perth PDSP 212 144 53 25% Perth SSDP 212 150 107 26%
Perth Total 212 294 110 51% Adelaide 178 300 110 62%
TOTAL 1726 1651 603 35%
* WSAAfacts 03
Water security for Australia’s mainland capital cities
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0100200300400500600700
Sydney Melbourne Brisbane Perth Adelaide
Trad Desal
2012 Desal Capacity cf 2003 (pre drought) Consumption Note: Brisbane desal capacity includes Western Corridor recycling
Annu
al D
eman
d G
L
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Membrane and system improvement – some recent step changes
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Reverse osmosis membranes • 1980 – energy intensity 16 kWh/kL • 2008 – 1.8 kWh/kL • Theoretical minimum 1.06 kWh/kL
– 35 g/l salinity – 25oC – 50% recovery
• Total plant including pre and post treatment around 3 kWh/kL • 1.4 kg CO2 generated per kL water produced
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Nano H2O
• Polyamide membrane with embedded, aligned carbon nanotubes • Standard 100 and 200 mm spiral wound membrane elements • Retrofit enables 10% overall energy reduction • 110 ML/d Palmachim plant in Israel – conventional elements
replaced by NanoH2O elements Kurth, CJ; R Burk; J Green (2011) Utilizing Nanotechnology to Enhance RO Membrane Performance for Seawater Desalination IDA World Congress, Perth, September 2011
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Palmachim Desalination Plant Israel
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Desalitech
• Inventor Prof Avi Efraty, Israel • Batch RO process – “dead end” operation • Recirculation pump provides cross flow • When desired recovery reached, brine “swept” out and replaced by
feed (no shut down) • Membrane operation optimised • Simple concept – no energy recovery • Total energy intensity of 2 kWh/kL reported http://desalitech.com/technology/
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Desal and Green Energy Research Projects
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Solar vacuum assisted membrane distillation at Tjuntjuntjara, a remote site in Western Australia
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Tjuntjuntjara
Rockingham 1300 km
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Murdoch University University of Technology Sydney WA Dept of Housing Parsons Brinckerhoff memSYS Clearwater (Singapore) Institute of Filtration and Techniques of Separation (France) Membrane Technology Centre
• Solar heating (and possibly waste heat from diesel powered generators) • Hypersaline groundwater feed • Blending of distillate with existing limited water supply from brackish groundwater • Potential for many more applications in deserts
Pryor T (2013) Tjuntjuntjara Remote Inland Indigenous Community Solar/Waste Energy Groundwater Desalination Project NCEDA International Desalination Workshop 6, Melbourne 28-29 Nov
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Tjuntjuntjara solar membrane distillation pilot plant
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memSYS membrane distillation pilot plant at Tjuntjuntjara
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Image courtesy : memSYS
The four stage vacuum assisted memSYS membrane distillation process
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memSYS unit performance February 2014 Calcium and magnesium sulphates, soluble iron and heat contribute to scaling. HCl cleaning effective
(hrs)
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Industrial waste heat driven multi-effect distillation
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University of Western Australia WA Geothermal Centre of Excellence Industry Partner BHP Billiton • Novel MED technology • Improves MED efficiency by 30% • Uses waste heat from the refining process • Full scale plant will:
provide recycled water for the refinery reduce fresh water demand reduce tailings water balance
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Chua, HT and A Christ (2013) Development of an Advanced Low Grade Heat Technology NCEDA International Desalination Workshop 6, Melbourne 28-29 Nov
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1.5 kL/d pilot plant has been built and tested at Rockingham Pilot Test Facility before being relocated to mine site south of Perth
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Geothermal Energy
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University of Western Australia CSIRO Pilbara Cities Office Hot brackish groundwater in WA at depth • Currently used for pool heating in Perth • Large reserves:
beneath Perth (3 km) the Pilbara – mining area of WA
• Potential for commercial desalination Barron, O (2013) Opportunities for desalination in Australian Agriculture NCEDA International Desalination Workshop 6, Melbourne 28-29 Nov
.
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University of South Australia SA Water LT Green Energy Water Corporation WA Dept of Water .
UniSA Mobile Solar Powered CDI Unit
Capacitive De-ionisation
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University of South Australia SA Water LT Green Energy • Mobile solar photovoltaic desalination plant • Mesoporous carbon electrodes • 4 kL/d from brackish water over a 10 hour day • 500 mg/L TDS fresh water produced .
Zhang, W; M Mossad and L Zou (2013) A study of the long-term operation of capacitive deionisation in inland brackish water desalination Desalination Vol 320 (2013) pp 80-85
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Australian solar wick distillation panels
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Wick Solar Still (1981)
Sodha M (1981) Simple multiple wick solar still: Analysis and performance, Solar Energy, 26(2), 127-131
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Carocell Solar Desalination Panels Made in Australia by F Cubed, Melbourne • Solar energy • Seawater used as feed at RDRF • Photovoltaic powered feed pump • 50% recovery • 17 L/d maximum distillate produced in summer
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30 unit F Cubed installation at Kendenup Farm near Albany WA – produces 0.5 kL/d
F Cubed Australian factory in Melbourne
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Carnegie Wave Energy • Full scale demonstration plant • Off Garden Island WA • Electricity and water for HMAS Stirling • High pressure fluid for
• electricity generation or • seawater desalination
• NCEDA to validate results
. 30 unit F Cubed installation at Kendenup
Farm near Albany WA – produces 0.5 kL/d
F Cubed Australian factory in Melbourne
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Sundrop Farms – Growing Tomatoes from Seawater and Sunshine
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Charlie Paton - environmental greenhouse in Oman 2012
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Hypersaline ground water used as feed • Source: Spencer Gulf • Approx 57 ppt (normal seawater 37 ppt) • Parabolic solar collector • Steam for power and desalination • Multi effect distillation for water (hydroponic) • Tomatoes, capsicums and cucumbers grown • Sold in Adelaide markets • $A190m expansion approved • 200 new jobs will be created (NOTE THIS IS NOT AN NCEDA PROJECT).
Sundrop Farms, Port Augusta, South Australia
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Solar tower proposed for Port Augusta - the first in the Southern Hemisphere .
Torresol thermosolar plant, Spain
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• .
David Pratt Head Grower Sundrop Farms Pt Augusta SA
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Green Energy for the Big Six Desalination Plants
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Emu Downs Wind Energy for Perth Seawater Desalination Plant
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Wind Energy Emu Downs, 300 km north of Perth Stanwell/Griffin Joint Venture 40 turbines, 80 MW 66 percent of the energy output purchased Equates to total energy load of the desalination plant 185 GW hrs/annum - equivalent to 24 MW continuous Opened on 12 November 2006
Perth Seawater Desalination Plant Kwinana
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Greenough River Solar Farm Renewable Energy for Southern Seawater Desalination Plant Binningup Greenough River Solar Farm
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Wind Energy Mumbida Wind Farm near Geraldton 400km north of Perth Verve Energy – Macquarie Capital 22 turbines, 55 MW 2.5 MW GE turbines Solar Energy Greenough River 10 MW Solar Farm Verve Energy – GE Financial Services JV Expandable to 40 MW 80 hectares: 150,000 PV panels Largest photovoltaic array in Australia
Southern Seawater Desalination Plant Binningup
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Sydney Desalination Plant Capital Wind Farm for Infigen Energy Bungendore near Canberra 67 turbines, 141 MW Suzlon 2.1 MW ea
Melbourne Desalination Plant Oaklands Hill Wind Farm, Glenthompson, near Hamilton for AGL 32 turbines, 63 MW Suzlon 2.1 MW ea
Adelaide Desalination Plant Hallett Wind Farms 1,2, 4,5 for AGL 167 turbines, 361 MW Suzlon 2.1 MW ea
Gold Coast Desalination Plant Operator purchases renewable energy credits
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Australian major urban desalination plants have no operating carbon footprint
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Summary
• New reverse osmosis technology reducing energy intensity • Heat from solar, industry, geothermal and energy from waves
targetted for desalination in Australia • Major urban Australian desalination plants purchase
renewable energy. Increases operating cost but there is no operating carbon footprint
• Solar energy used for commercial greenhouse development • New investors keen on sustainable projects
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THANK YOU
Adelaide Desalination Plant Courtesy SA Water THANK YOU
Oasis of Biladsayt, Oman
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