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For many years, Australians considered that they lived in 'The Lucky Country', and were happy to 'go along for the ride.'After the realisation that we could not thrive and prosper in a world where we simply relied upon 'Luck', the work of some our nation's innovators and inventors led to renaming Australia as 'The Clever Country.'For the past decade, the Southern parts of our nation have been stricken by drought. We have been watching this slow-moving disaster roll over us, instead of acting in a pro-active manner -- not at all so Clever.This paper provides some analysis of this creeping disaster, and outlines a Green Friendly method to help water some of our parched farming areas. We cannot make it rain, but we can certainly use a Thermal Desalination Process to make potable water, by combining;1. Waste heat from the Aluminium Smelter Portland, Victoria, Australia, and 2. Sourcing the proven Geothermal resource underneath the Portland area.This concept can be used anywhere along our seaboard where we have other heavy industrial processes with a high waste-heat by-product.
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The Clever Country - Dying of Thirst -
A Proposal for Drought Mitigation in South-west Victoria and the Lower
Murray Basin
A Work in Progress – April 2007 Edition
Graham Bates
Portland VIC 3305
Tel: 03 5523 2313
Mob: 0418 569000
Email: [email protected]
The Clever Country – Dying of Thirst
Version 11
Copyright - Graham Bates 2007
P O Box 1254
Portland Victoria 3305
Version 1 submitted to Mr Greg Strada, Consultant Engineer and The Hon. David Hawker MP, Federal Member for Wannon on 13th December 2006
Version 2 presented to Alcoa – Portland Aluminium on 20th December 2006 and The Hon. Malcolm Turnbull MP, Federal Minister for the Environment
Version 6 presented to ABC Radio on 19th January, 2007
Version 8 presented to David Hawker MP, Federal Member for Wannon on 25th January, 2007.
Version 8 presented to Mr. Anthony Albanese, Federal Shadow Minister for Water Infrastructure on 25th January, 2007.
Version 9 presented to the Dr. Denis Napthine, State Member for South West Coast, on 7th February, 2007.
Version 10 presented to Debbie Cuthbertson, Chief of Staff, The Age Newspaper on 12th April, 2007.
Version 11 presented to Kevin Rudd MP and Peter Garrett MP, Federal ALP on 7th April, 2007.
Version 11 presented to Stephen Martin, Reporter from the ABC Office, Ballarat on 18th April, 2007.
Version 11 presented to Linda Christian at the Office of Catherine King MP, Federal ALP Ballarat on 18th April, 2007.
Version 11 presented to Mr Peter Hyett – The Bendigo Advertiser 23rd April, 2007
Version 11 presented for the 3rd time to The Hon. Malcolm Turnbull MP, Federal Minister for the Water on 23rd April, 2007
Version 11 presented to Glenelg Shire Council on 24th April, 2007 & The Portland Observer Newspaper
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The Clever Country – Dying of Thirst
Executive Summary ________________________________________________5
Introduction ______________________________________________________6
Current Situation __________________________________________________8
The Big Picture _______________________________________________________ 8
Region of Interest ____________________________________________________ 11
Groundwater Reserves_________________________________________________ 13
Why Build a Desalination Plant & Pipeline? ___________________________16
Risks of Complacency _________________________________________________ 16 Rural Sector Collapse______________________________________________16 Farm Walkouts ___________________________________________________17 Bushfires and Firestorms ___________________________________________18 Litigation Arising from Bushfires and Firestorms ________________________18 Export Collapse __________________________________________________18
Our Golden Soil ______________________________________________________ 19 Loss of shelter belts _______________________________________________20 Dust-Bowl Conditions _____________________________________________21
New industries requiring water __________________________________________ 25
Aquifer Replenishment ________________________________________________ 26
New Water Sources ___________________________________________________ 27
Desalination Plants ___________________________________________________ 28 Energy Costs ____________________________________________________30 Delivering Water Resources_________________________________________30
Key Elements ____________________________________________________32
Why Portland ____________________________________________________33
Portland Aluminium – The Smelter in the Park _____________________________ 33 Power Generation_________________________________________________35
Key Elements ________________________________________________________ 35
Litigation – The Ultimate Motivator ______________________________________ 37
Next Steps ______________________________________________________38
Conclusion ______________________________________________________39
The need for action ___________________________________________________ 39
Index___________________________________________________________40
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The Clever Country – Dying of Thirst
Water Basics
What's a Megalitre?
One Megalitre (ML) is 1 million litres, or 1,000 cubic metres.
One Megalitre covers approximately 1 square kilometre to a depth of 1 millimetre.
One Megalitre is about equal to the volume of 1 Olympic sized swimming pool.1
1 DPI Victoria Website: http://www.dpi.vic.gov.au/dpi/vro/vrosite.nsf/pages/pavs
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The Clever Country – Dying of Thirst
Executive Summary This report is a concept plan to counter the imminent drought crisis facing our ‘Clever Country’ – Australia.
This plan hinges upon a heat recycling process used in conjunction with construction and development of water infrastructure as follows;
1. Construction of a Multi-Effect Distillation (MED) Desalination Plant at Portland, Victoria.
2. Utilise 2 methods of reducing heat energy operating costs by:
a. Incorporating the massive heat byproduct generated by the Portland Aluminium Smelter via Heat Exchanger Technology2.
b. Sourcing the proven geothermal water-bore structure 1,300 metres below Portland.
3. Concurrent development of water infrastructure such as pipelines and pumping stations for supplying potable water product from the Portland Area Groundwater Reserves northward to:
a. Hamilton, Horsham and other major towns, communities and water storages between Portland Bay and Swan Hill/Mildura on the Murray River, (distance is approx 550 kms) or,
b. Hamilton, Mortlake, Ballarat – linking up with the Goldfields Pipeline that is currently under construction southward from the Murray-Goulburn River Systems to Bendigo and Ballarat. Distance link-up is approx 290 kms.
4. Ensure that a proportion of this water flows into the Murray River enabling both environmental flows and extraction downriver for the Adelaide water supply.
5. Commencement of groundwater recharge in the Portland Area from the Desalination Plant.
6. Using water for the ongoing development and maintenance of long-term drought & bushfire mitigation programmes for topsoils, groundcover and shelterbelts in the Western & Central Districts of Victoria.
2 See Fact File (pdf file) on Dubai Aluminium – Smelter and Desalination Plant Cogeneration Project – website : http://www.dubal.ae/mediacentre/news.aspx
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The Clever Country – Dying of Thirst
Introduction
Whilst there has been much debate about whether Climate Change is a fact or a myth, the reality is that Australia has experienced a continuing series of very low rainfall events.
In the summer (December) 2006 we faced a significant crop yield failure. Over this harvest season, wheat exports are predicted to be the lowest in years.
Commonwealth and State Governments are already committing hundreds of millions of dollars in Drought Relief Programmes. Whilst these measures will assist the rural community during this drought, they will not provide a solution to future low rainfall events – lack of water.
The city of Goulburn in NSW, 1 hour north-east of Canberra, is an example of how bad things can become.3 This story in “The Age” was dated 20th May, 2005.
“Matt OʹRourke walks across the dam that is Goulburnʹs major water source and does not even get his feet wet. He is not God, but perhaps another type of miracle is occurring. ʺItʹs raining,ʺ he says. ʺThis is not a drought story after all.ʺ
But it is. The ultra‐light shower barely touches the ground. What does make it disappears in the deep cracks ‐ just five years ago, this was the bottom of a 10‐metre‐deep, 9000‐megalitre dam.
The people of Goulburn, one hour north‐east of Canberra, need a lot more rain than this.
Today their dam is just 8 per cent full. If the drought continues, the dam will be empty in eight months.”
3 The Age website: http://www.theage.com.au/news/Drought/Goulburn-could-run-dry-in-eight-months/2005/05/19/1116361673744.html
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On the 21st April, 2006, the ABC highlights Goulburn’s worsening situation. 4
“For the past few years the people of Goulburn in New South Wales have been watching the water levels in their city dam drop lower and lower. And this week, courtesy of the drought, the almost unthinkable happened the dam has been declared officially empty.”
It appears that little has been done to alleviate the situation in Goulburn. In fact, Goulburn has been on Level 5 water restrictions since 2004.
If this is any indicator of what drought can do to other inland cities and rural communities, then we all need to quickly find some remedy for this dire situation.
We require a massive effort similar in scale to that of the Snowy Mountains Hydro-Electric Scheme to provide a long-term drought-resistance plan for the nation.
An endeavour of this magnitude will necessarily require leadership, focus, dialogue, cohesion and planning, between people within Industry, Commonwealth, States and Territories to succeed.
This report aims to provide input into where some of this effort should be directed.
It provides a strategic plan to deal with the drought in the Southwestern and Western parts of Victoria, extending north to the Murray Basin, a distance of approximately 600 kms.
4 ABC 2 – Story on drought in Goulburn NSW website: http://www.abc.net.au/tv/australiawide/stories/s1620882.htm
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Current Situation
The Big Picture
The average rainfall trends for the past 50 years for Australia are clearly displayed in the Bureau of Meteorology Map (BoM) below.
It is evident that many high population areas along the Eastern and Western Seaboard are receiving significantly less rainfall over the past 50 years – population and water demand is upwards – but the rainfall trend is downwards.
Less rainfall will see a reduction in the harvests from ‘Australia’s Food Bowl’ grains and sheep/cattle growing areas.
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The Clever Country – Dying of Thirst
The rainfall pattern during the 2002 – 03 drought is clearly illustrated as per the map below.
This drought had very serious consequences for the nation. Treasury compiled a full Report on the Economic effects of this drought, as per this web reference.5
The record high prices for cattle and sheep in 2004 – 05 have recently slumped, and reports from South Australia suggest collapse. 6
“Prices for sheep and cattle have crashed in South Australia after massive stock sell‐offs last week.
Across many regions a lack of rain has seen pastures dry up forcing producers to sell off livestock early in the season.
More than 100,000 sheep, lambs and cattle went through the saleyards last week, forcing prices down.”
5 Dept of Treasury Report Website. http://www.treasury.gov.au/documents/817/HTML/docshell.asp?URL=03_article_2.asp 6 ABC Rural Website – 25th SEPT, 2006 http://www.abc.net.au/rural/news/content/2006/s1747976.htm
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The Clever Country – Dying of Thirst
Victorian and NSW prices are already following this trend as reported in the Infarmation - Agribusiness website.7
At a lamb sale in Hamilton in Nov-Dec 2006, lambs that would have sold for $90 per head last year are now selling for $9.
These prices are crashing now because farmers will be unable to feed and water their stock over the summer period.
Many farmers along the lower southern fodder producing areas in Victoria (extending West from Geelong to Hamilton/Portland) harvested and baled their hay and fodder in October 2006, because of the unusually dry conditions.
This practice normally occurs in December.
There have already been a number of farmer suicides in the Murray area, with Beyond Blue reporting the death of “1 farmer every 4 days.” 8
7 Infarmation Website http://www.infarmation.com.au/common/pdf/MLA_20061016.pdf 8 ABC News Online Website: http://www.abc.net.au/news/newsitems/200610/s1764557.htm
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Region of Interest
The Region of Interest (ROI) of this report encompasses the Southwest, Western and the Lower Murray Basin in Victoria. The area extends from the Southern Victorian coastline around Portland, northwards to the Murray River in the Mildura/Swan Hill region.
Much of this area, including the Mallee and Wimmera districts are under a continuing cycle of serious drought. The Victorian Dept of Primary Industries – Storage Level Report at 31st of August, 2006, reflects a truly gloomy picture of this region that has little in the way of major rivers and streams.
The summary 9 is as follows:
“Volumes in the major storages throughout the State reduced by 1.4% in August 2006 (compared with an increase of 8.2 % in August 2005). (see map and table)
At the end of the month, Victoriaʹs share of the volume in major storages throughout the State was at 32.9% of capacity, compared with 46.1% at the same time last year.
Storages in the Glenelg/Wimmera Basin are at 6.8% of capacity compared with 9% at the same time last year.
Lake Eppalock is at 4% of capacity (compared with 7.8 % at the same time last year).
Lake Eildon is at 22.6% of capacity (compared with 37.6% last year), while Rosslynne Reservoir is at 6.9% of capacity (compared with 14.0% last year).”
Ballarat, Bendigo, Hamilton, Dunkeld and other Western District communities are on Level 4 restrictions as at early December.
9 Victorian Resources Online Website: http://www.dse.vic.gov.au/dpi/vro/vrosite.nsf/pages/water-streports-storage
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The Clever Country – Dying of Thirst
The graphic below clearly demonstrates the dire situation.
Map Reference: http://www.dse.vic.gov.au/DSE/wcmn202.nsf/LinkView/F0767547F8F075A8CA257211002D5233B4D07B20BF8AB51ACA2572100009B86F
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The Clever Country – Dying of Thirst
Groundwater Reserves
As the surface water storage areas in the previous map show a critical shortfall of water reserves, the groundwater or aquifer reserves show a different picture.
Map Reference: http://www.dpi.vic.gov.au/dpi/vro/maps.nsf/pages/Victoria-NaturalResources-Water-Groundwater-ga?Opendocument
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The Clever Country – Dying of Thirst
The highest Permissible Annual Volume (PAV) for extraction rates (megalitres) for groundwater resources10 in Victoria are as follows;
Seacombe - >50, >150 or >350 See plan
100,000
Lake Mundi - 0 to 30 48,000
Heywood - 0 to 70 21,700
Portland - >200 20,600
Seacombe lies within the East Gippsland region.
The Portland, Heywood and Lake Mundi groundwater resources are within the Glenelg & Wimmera areas of Victoria.
The current drawdown from the Portland resource is about 25% of the PAV.
The Glenelg Shire and parts of the Wimmera Shire are one of the only areas in Victoria that has an over-abundance of water, albeit from groundwater resources, however, with only 6.8% of available surface storage capacities filled, there is already a significant deficit in groundwater recharge capacity.
The area is known as the Greater Green Triangle Region. 11
“The Green Triangle Plantation Region is comprised of seventeen local government areas throughout south‐west Victoria and south‐east South Australia.
It encompasses the Glenelg Hopkins Catchment Management Authority and Wimmera regions. The Green Triangle covers an area of approximately 6 million hectares and represents diverse climatic zones and land systems.
It is also the largest wood fibre producing region in Australia (GTRPC) (b)”.
This project will only succeed if groundwater reserves are replaced with sterile desalination water, otherwise groundwater reserves will be seriously depleted without recharge.
10 DPI Victoria Website: http://www.dpi.vic.gov.au/dpi/vro/vrosite.nsf/pages/pavs 11 Greater Green Triangle Area Website: http://www.nre.vic.gov.au/dpi/vro/vrosite.nsf/pages/private-regional-great
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The Clever Country – Dying of Thirst
The map below shows both the area and the rainfall data, for normal years.
Reference: http://www.nre.vic.gov.au/dpi/vro/maps.nsf/pages/Victoria-private-regional-ggt-rain?Opendocument
As there is an abundance of groundwater in the Greater Green Triangle Area, this region is a potential source of water supply for those drier areas that extend north-eastward to Ballarat, with a link-up to the Goldfields Water Pipeline, and/or to Swan Hill/Mildura.
These additional pipelines can also be networked into the Wimmera-Mallee pipeline network.
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The Clever Country – Dying of Thirst
Why Build a Desalination Plant & Pipeline?
“I love a sunburnt country, A land of sweeping plains,
Of ragged mountain ranges, Of droughts and flooding rains.”12
Dorothea Mackellar
We no longer experience the same weather patterns that Dorethea Mackellar did when she penned her observations about the ‘flooding rains’ that recharge the rivers, streams and aquifers.
Today we are left with annual diminishing rainfall and increasing cycles of drought.
We are now into the autumn season and already many available surface water resources are severely depleted. These scarce water resources will place additional burdens upon a nation already suffering from the stress of drought.
Risks of Complacency
Some risks have already been touched upon, however this list below provides further detail.
Rural Sector Collapse
The Treasurer, Mr. Costello in an interview on ABC’s 7:30 Report, has already mentioned that the economy is suffering from the effects of the national drought.
The ABC news on this same night reported that there were significant amounts of Commonwealth Assistance Funding for people in the rural sector affected by the drought.
Large inland cities are now approaching conditions similar to those in Goulburn, NSW – these include Ballarat, Bendigo, Horsham, Hamilton and many others.
We simply cannot allow the collapse of our primary industry base.
12 Poem – “My Country” – Dorothea Mackellar : http://www.dorotheamackellar.com.au/archive.asp
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The Clever Country – Dying of Thirst
Farm Walkouts
There have already been reports of farmers walking off their properties. This article is in the Australian of 13th October, 2006. 13
“FARMERS are abandoning their properties in droves and thousands of Victoriaʹs best milking cows are being slaughtered as hot, dry weather pushes the state into a drought crisis.
Angry farmers in the north have scoffed at State Government warnings that Victorians should brace for tough months ahead as crops fail and debt soars.
They say the official response is too little, too late, to save hundreds of farmers walking away from properties held by their families for generations. Kyabram real estate and stock agent Peter Croxford toured the district with the Herald Sun yesterday, pointing out dozens of farms for sale. Worse was the sight of thousands of prized dairy cattle awaiting slaughter for export to the US.” ʺWith cows worth $1500 a head as milkers being sold instead for $400 for slaughter, itʹs no wonder farmers are walking away,ʺ Mr. Croxford said. The effect of drought on farmers creates a Catch 22 for country communities across the state. ʺWhen farmers lose income they stop spending at the retail level and staff are laid off across the board,ʺ he said. Mr. Croxford and farmers were critical of the government response. ʺThe Government canʹt make it rain, but they should be using some of the excess in their coffers to subsidise fodder to feed cattle and help provide water to keep properties running,ʺ Mr. Croxford said.
There is a flow-on effect from these events.
When farmers walk off the land in times of drought, business activity in local towns and cities is severely curtailed and there is no-one left in the land-care role.
13 The Australian website: http://www.theaustralian.news.com.au/story/0,20867,20573211-5006785,00.html
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The topsoils are laid bare to all the elements.
Bushfires and Firestorms
The recent firestorm reported from the east coast of Tasmania highlights the need for immediate development of plans that reduce the bushfire risk.
The Prime Minister has just visited bushfire ravaged areas14, pledging support of the Government. This support also needs to be directed toward long term solutions such as planting fire-resistant shelterbelts.
In January 2006, a bushfire swept through the Grampians in central Victoria. The only areas to survive, and stop, this fire were tree plantations of Blue Gum under the management of Timbercorp, a forestry management organization.
There is a DVD available15 with aerial footage that clearly shows that the only ‘patch of green’ in the fire devastated areas was Blue Gum plantation areas. Whilst they had been scorched around the edges, the main central areas were untouched.
If these plantations are to be developed as a fire-control or mitigation measure then new seedlings will require water to thrive in the already very dry conditions.
Litigation Arising from Bushfires and Firestorms
The recent Christmas 2006 bushfires in the Gipplsand area clearly reflect the community sentiment concerning poor fuel-load management practices that Managers of National Parks and State Forests are employing. Farmers and people affected have launched a lawsuit for negligence.
This Class Action is being managed by Slidders Lawyers16 in Melbourne on behalf of residents who have suffered damage as a result of these bushfires and firestorms.
Export Collapse
Further drought pressure on our nation, which has already been assessed as having 50% of productive farmland declared as drought affected, may lead to an export collapse.
14 Website for The Australian. http://www.theaustralian.news.com.au/story/0,20867,20920302-5006785,00.html 15 DVD available from John Kiely at Timbercorp in Hamilton VIC Tel: (03) 5572 3970 16 Article in The Age Newspaper “Farmers sue State Government”, website: http://www.theage.com.au/news/national/farmers-sue-state-over-bushfires/2007/03/22/1174153243088.html
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Australia has always been an exporter of primary produce, however, such a situation may well force us to import basic grains, fodder etc. Other nations experiencing detrimental Climate Change effects such as we have, may also have their export capacity curtailed.
We would then be at the mercy of the international market-place, forced to pay higher prices and import costs – a nightmare in any Government effort to produce realistic Forward Estimates.
Our Golden Soil
A key element in our position as a world class producer of disease-free primary produce is our soil. Without this vital element we will suddenly turn from an exporter to an importer.
“Australians all let us rejoice,
For we are young and free;
We’ve golden soil and wealth for toil;” 17
Everyone knows about the importance of our ‘golden soil.’
We all know that we cannot afford to lose our topsoil – but do we know why?
This Department of Primary Industries (Victoria) paper, entitled ‘Paddock Protection & Stock Management During Dry Times’, by John Williamson18 of Bendigo spells out the facts about topsoil loss.
“In dry periods, soils become more susceptible to wind erosion as a result of the removal of the protective vegetative soil cover. This is caused by stock grazing and the trampling of the soil surface degrading the soil structure.
As a consequence, strong winds are able to erode soil particles, depositing them either as drifts along fence lines or at locations up to thousands of kilometers away. Eroded soils and animal manure can foul both domestic and stock water supplies decreasing the potability of the water.”
17 Australian National Anthem 18 Website of the Victorian DPI http://www.dpi.vic.gov.au/dpi/nreninf.nsf/childdocs/-2BAF4D73531CD1544A2568B3000505AF-BFCF7D5EBE9AE2BCCA256BC80004E969-7AB5497C04B0FFE84A256DEA00296590-49FE3D171C310C51CA256BCF000AD4F1?open
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“Sandy soils are renowned for blowing during dry periods, however all soil types are susceptible.
Erosion of topsoils by wind takes with it nutrients such as nitrogen, phosphorous and organic carbon all of which are vital for the health of the soil and production.”
“With every 1 mm of topsoil eroded, approximately 13 t/ha of topsoil, 130 kg/ha of organic carbon, 20 kg/ha of nitrogen equivalent to 40 kg of urea and 8 kg/ha of phosphorous equivalent to 100 kg of superphosphate are lost.
Phosphorous and some nitrogen can be replaced through fertilizer however organic carbon and nitrogen take years of appropriate management to build up in soils.
Although the consequences of soil erosion may not be seen until a number of years after the drought, removal of soil through erosion will decrease the productivity of the paddock for many years to come.”
Unless there is adequate groundcover and shelterbelts maintained during the drought, the most enriched part of the topsoil is at extreme risk of being blown away 19.
Loss of shelter belts
The Green Triangle Area (Southwestern Victoria) is the largest wood fibre producing area within Australia.
During the 2006-2007 fire season just over 1,000,000 hectares of bushland in the eastern parts of Victoria was devastated.
The Ash Wednesday fires of 1983 20 saw extreme weather conditions combine with severe drought to produce some of the most devastating bushfires that Australia has ever experienced.
“The Ash Wednesday fires consisted of some of the most devastating bushfires Australia has ever experienced, sweeping through parts of Victoria and South Australia.
Weather conditions leading up to the Ash Wednesday fires.
Between April 1982 and January 1983, Victoria experienced severe drought conditions and little rainfall, resulting in its driest period on record. A
19 Website of the Victorian DPI http://www.dpi.vic.gov.au/dpi/nreninf.nsf/childdocs/-2BAF4D73531CD1544A2568B3000505AF-BFCF7D5EBE9AE2BCCA256BC80004E969-7AB5497C04B0FFE84A256DEA00296590-49FE3D171C310C51CA256BCF000AD4F1?open20 Ash Wednesday fires, 1983 website: http://home.vicnet.net.au/~gscfa/ash.htm
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combination of dry grasslands and forests, very hot temperatures, low humidity and high wind gusts presented Victoria with a high bushfire risk.
The temperature was 43 degrees Celsius on Ash Wednesday.”
“Around 180 bushfires broke out on 16 February 1983, known as Ash Wednesday.
The largest bushfires started in Victoria at Cudgee and Branxholme (near Hamilton), around Mount Macedon, in the Dandenong Ranges ‐ Cockatoo, Upper Beaconsfield and Belgrave Heights, Monivae, Branxholme, Warburton and in the Otways.”
Whilst the Blue Gum plantations cover approximately 50,000 hectares and represent some fire inhibiting potential, the native or natural forests are still high risk bushfire areas, especially in very hot windy conditions where crown fires destroy everything.
As surface water levels are already extremely low in this area, the ability of CFA (Country Fire Authority) and DSE (Department of Sustainability and Environment) to access water reserves will only worsen as summer continues.
Comment
Maintenance of sufficient groundcover and shelterbelts is necessary to prevent erosion, whether it is caused by dry winds during drought or water erosion after flooding.
There is also anecdotal evidence supporting shelterbelts as a fire-control measure.
This requires regular use of water resources to develop, maintain and extend shelterbelts.
Dust-Bowl Conditions
There have been numerous studies about the American experience in the 1930’s depression, when drought cycles and depression created the infamous Dust Bowl. 21
“The most important factor in the creation of the major dust storms during the Dust Bowl was wind erosion. The combined factors of drought, climate misconceptions, and poor land management made wind erosion a major problem. Wind erosion is essentially the wind blowing loose topsoil off of
21 The Causes of the Dust Bowl website: http://snr.unl.edu/metr351-03/jnothwehr/causes.html
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The Clever Country – Dying of Thirst
the ground. There were a number of reasons this occurred to such a great extent during the 1930ʹs.”
“During the previous decades, the predominant crop planted on the Great Plains was wheat. Wheat is not a very good crop in terms of keep the soil in big clumps. The fine particles of soil were free to blow around in the wind, especially after the crops died in a drought and there was nothing holding the soil in place at all. The farmers also did a poor job of practicing crop rotation. Wheat was continually planted in the same fields, and the soil was broken down as a result. Also, the large amount of cultivated land did not have year round vegetation covering it. When the land was covered with grasses or other vegetation, it had something to keep the soil in place all year long. However, when the land was used to grow crops, it did not have a vegetation cover all year long. There were periods during the year when nothing was growing at all. This left the uncovered fields vulnerable to wind erosion. With the increase of cropland, the threat for wind erosion in this respect also increased.”
Australia could suffer similar climatic conditions with high inland temperatures creating an increase in atmospheric pressure gradients across weather front systems. This can generate large front windstorms.
Huge tracts of land can be laid waste. 22
“In 1934, windstorms covered the Great Plains. They easily uplifted the soil, blowing massive clouds of dust all over the plains.
Thousands of people were forced to leave their homes because of the Dust Bowl.
89 million acres of land were severely damaged or destroyed.
The Dust Bowl only served to make the Great Depression even more miserable.”
22 Dust Bowl Article, website: http://library.thinkquest.org/26026/History/the_dust_bowl.html
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The Australian high dust-storm risk areas are detailed below. 23
In every case it is the destruction of the topsoil that devastates the farming land. 24
“Dust‐storms are for the most part restricted to the drier inland areas of Australia, but occasionally, during widespread drought, they can affect coastal districts. The figure above shows the average distribution of dust‐storms over Australia.
One of the most spectacular examples was the storm that swept across Melbourne in February 1983, late in the severe El Niño drought of 1982/83. The extended dry period of the 1930s and 1940s generated many severe dust‐storms, culminating in the summer of 1944/45 when on several occasions dust in Adelaide was so thick that street lighting had to be turned on.
But uncomfortable as dust‐storms may be for town and city dwellers, by far their worst effect is the stripping of topsoil from Australiaʹs arable land.”
23 Australian Dust Storms – BOM website: http://www.bom.gov.au/lam/climate/levelthree/c20thc/storm8.htm 24 Australian Dust Storms – BOM website: http://www.bom.gov.au/lam/climate/levelthree/c20thc/storm8.htm
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This photo of the dust storm after the Eyre Peninsula Bushfire in January, 2005 is indicative of the devastation.
In scenes reminiscent of January 11th, 2005 - the day of Eyre Peninsula's bushfire, this is the view of Saturday's dust storm blowing over Franklin Harbor from Lucky Bay. Photo: Donna Lamb in Lucky Bay.
In the great dust storm of 1983, in Melbourne the following comments are significant. 25
“At its height, the dust‐storm extended across the entire width of Victoria, and was many kilometres across. The dust‐cloud was some 320m deep when it struck Melbourne, but in other areas extended thousands of metres into the atmosphere.
It was estimated that about 50,000 tonnes of topsoil were stripped from the Mallee (approximately 1,000 tonnes of it being dumped on the city), leaving the ground bare, and exacerbating the effects of the drought. Open water channels in the northwest were clogged with sand and dirt.
“The combined effect of drought and dust‐storm inflicted damage on the land that, according to the then President of the Victorian Farmers and Graziers’ Association, would take up to 10 years and tens of millions of dollars to repair.”
25 BOM website: http://www.bom.gov.au/lam/climate/levelthree/c20thc/storm7.htm
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8th FEB, 1983 – Dust Storm in Melbourne with topsoils stripped from the Wimmera.
Comment
Wimmera topsoils deposited over Melbourne emphasize the need for the urgent implementation of mitigation programmes in the Western Districts of Victoria – the source of these devastating dust storms.
Shelterbelts using Blue Gum plantation or other low fire-risk vegetation can be developed to prevent erosion and reduce the fire risk.
Such programmes require new supplies of potable water from guaranteed, sustainable sources that can only be provided by Desalination Plants.
New industries requiring water
In addition to the extensive primary production output from this region, there are also currently 3 major projects in the planning and/or construction stages in this area;
1. Iluka Minerals Sands Project – Hamilton. This project will draw groundwater for the whole process from extraction to refining. Whilst the latest techniques in water recycling will be incorporated into this process, extended drought may compromise drawdown capacity.
2. Heywood Pulp Mill – Heywood. This project is expected to use 6 ML per day in 24/7 operations.26 This company will also be using up-to-date
26 Heywood Pulp Mill website: http://www.heywoodpulpmill.com.au/documents/Panel%20Assessment%20Report.pdf
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recycling techniques, however, there will still be water required from the Aquifer.
3. Penola Pulp Mill – Penola SA. This project has also been given the green light from the Federal Government subject to remedial habitat work to save black cockatoo breeding areas. It is of a similar design to the Heywood mill, requiring 6 ML/day.27
Aquifer Replenishment
Additional long-term reduced rainfall will force governments into adopting ‘fire-brigade’ policies to meet the threat of drought. When surface capacity fails, authorities and communities will be forced into seeking whatever water resources that they can find – this will inevitably lead to the aquifers.
This places an even more vital commitment on adequate planning and preparation to meet this inevitable situation, because aquifers are our finite, final, freshwater reserve.
Aquifers can readily be ‘mined’, however there are many scientific papers that stress the need to correctly replenish these finite resources, as they are really the last freshwater reserves that we have.
The problems associated with simply taking water from an aquifer system and providing no recharge capacity is illustrated as follows:
“Anand, Gujarat, 16th February 2002. If India fails to master the game of groundwater aquifer recharge, the over‐use of this resource will have disastrous consequences for much of western and peninsular India. It will create serious ecological problems and put the brakes on socio‐economic progress in the region. These are the findings of researchers from the International Water Management Institute (IWMI) and a coalition of Indian research partners, which will be presented in a special conference in Anand on 19‐20 February 2002.”28
The Australian National Water Initiative (NMI) has just released its report.29
27 Penola Pulp Mill website: http://www.penolapulpmill.com.au/ 28 International Water Management Institute Website: http://www.iwmi.cgiar.org/Press/iwmi-tata.htm 29 NWI Website: http://nwc.gov.au/NWI/index.cfm#overview
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News media comments such as those below are becoming increasingly prominent in the public eye.30
“AUSTRALIAʹS first national audit of water resources has ʺfailedʺ the states in key areas and recommended urgent work to cut irrigation rights, manage bore water and save crucial rivers.
In a stinging assessment of the slow progress of the states to meet their water reform obligations under the $2 billion National Water Initiative, the audit delivers a rude shock to premiers and chief ministers as they hold their own summit on federation issues, such as water management, in Melbourne today.
Its criticisms have also coincided with the introduction of new water restrictions in Adelaide and Brisbane, and likely tougher restrictions in Melbourne.
South Australia introduced the toughest water restrictions in the stateʹs history to combat record low Murray River flows.
In southeast Queensland, the Beattie Government introduced stage‐four restrictions, which limit residents to watering outdoor with buckets and cans during restricted times.”
There have been many recommendations in the NWI for water conservation measures, in addition to the following major issues regarding:
• Seeking new water sources
• Replenishing and recharging depleted surface and groundwater reserves
• Delivering water resources to areas where they are most needed
New Water Sources
The Gold Coast City has just started construction of a Desalination Plant to provide adequate water resources for their growing population. There will also be water infrastructure links to the various dams and other pipelines in the area.31
30 The Australian Newspaper 13th OCT, 2006 : http://www.theaustralian.news.com.au/story/0,20867,20572341-601,00.html 31 The Bay Journal – article of 24th SEPT, 2006 http://bayjournal.com.au/joomla/index.php?option=com_content&task=view&id=893&Itemid=44
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“Early works on Queenslandʹs largest desalination facility are underway with Deputy Premier Anna Bligh and Gold Coast Mayor Ron Clarke turning the first sod on the site of the new water supply plant at Tugun on Tuesday.
ʺOur Government is investing significant funding in the project with $80 million committed for early works such as preparing the site and ordering specialized tunnel boring machines,ʺ Ms Bligh said.
ʺWhen completed this plant will deliver a significant new source of water that we hope will prevent an ʹArmageddonʹ water situation.
ʺThe project has the potential to deliver 125 million litres of desalinated water per day by the end of 2008.
ʺThis represents more than 15 percent of the entire south‐eastʹs current needs and is sufficient to meet the water needs of at least 400,000 people.”
This project will cost in excess of $1.1 billion when pipeline connection costs to the various reservoirs are included.
The following website is relevant in any discussion of desalination plants, as it details the history and success of these plants in Middle East.32
Desalination Plants
There are several types of desalination plants. The major ones include:
1. Multistage Flash Desalination (MSF) – a thermal process – seawater is first heated under high pressure before being fed into the 1st “flash” chamber, where rapid pressure release causes the seawater to quickly boil. This “flashing” process evaporates some of the seawater, and the process continues through more “flashing chambers”, each with a step-down in ambient pressure. The water vapour generated in this process is condensed and collected from tubing cooled by the seawater feed. Only a small percentage of the incoming seawater-feed is evaporated and collected. This method produces about 84% of the world’s potable water from Thermal Methods. Most of these plants have been built in the Middle East where energy reserves are plentiful. The main problem with these plants is
32 Water Desalination in the Middle East: http://www.unu.edu/unupress/unupbooks/80858e/80858E09.htm
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operating costs and high construction costs associated with using high quality stainless steel in tubes and chambers. 33
2. Multi-Effect Distillation (MED) – also a thermal process – similar to the MSF process, however the seawater-feed is not heated under high pressure. In the MED chambers, reduced ambient pressure is used to boil water at lower temperatures. Saltwater boils at slightly above 100O C at Standard Temperature and Pressure (STP). With the reduced pressure Effect within the MED Chambers, it boils at about 65O C34. This significantly reduces the energy and therefore the operating costs to run the facility. Higher numbers of chambers (Effects) equates to higher performance ratios.35
3. Reverse Osmosis (RO) – a non-thermal filtration process using membrane technology – saltwater is pumped at high pressures of 800 to 1,000 psi through a semi-permeable membrane. There are numerous stages involved in the pre-treatment process, depending on the contamination levels of the saltwater-feed – i.e. suspended solids and divalent ions like Calcium and Magnesium. This process is prevalent in the US, where energy costs are too high for thermal processes.36
Of these processes, MED would appear to provide the best value with its low temperature operational costs. There is also the requirement that sterile water be used for aquifer recharge due to the presence in the sea around Portland of a virus that causes ganglioneuritis, a herpes-like disease that is killing the wild abalone.37 This would appear to seriously compromise any desalination effort by a filtration process using Reverse Osmosis (RO) methods.
Strict quarantine protocols should apply to any aquifer recharge process.
Full details about other desalination plants and processes may be found at Annex A,38 in hardcopy versions of this document.
A significant factor in any desalination process is related to the energy levels required to produce potable water.
33 Introduction to Water Desalination, by Hari J Krishna http://www.twdb.state.tx.us/Desalination/The%20Future%20of%20Desalination%20in%20Texas%20-%20Volume%202/documents/C1.pdf34 “Distillation Plant Development and Cost Update”, by Neil M Wade, page 7 Website: http://www.desline.com/articoli/4051.pdf35 Ibid. 36 Ibid. 37 ABC Rural Website: http://www.abc.net.au/rural/regions/content/2006/s1655934.htm 38 Introduction to Water Desalination, by Hari J Krishna http://www.twdb.state.tx.us/Desalination/The%20Future%20of%20Desalination%20in%20Texas%20-%20Volume%202/documents/C1.pdf
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Energy Costs
The on-going operational energy costs for an MED desalination plant should be drastically reduced by using the 2 significant heat resources within the Portland area:
1. Heat byproduct of the smelting process at (PA) Portland Aluminium. PA have expressed an interest in this concept.
2. Portland Geothermal Bores. A number of bores had been in service from the early 1980s. The Portland 14 bore flowed under artesian pressure of up to 90L/sec at approx 60O C.39 Whilst this bore has been recently decommissioned, this site has proven potential for redevelopment. The full report of SKM (Sinclair Knight Merz) provides 10 pages of detail about the Portland Geothermal Borefield.
Full costings for such a plant are dependent upon plant size, however, a paper by Neil M Wade40 of the UK, entitled “Distillation Plant Development and Cost Update”, compares the various available desalination processes.
Delivering Water Resources
There are several options in the logistic operation of delivering bulk water to those who need it.
1. Road – very inefficient for delivering high volumes over long distances, and mainly suitable for individual farmers.
2. Rail – A relatively efficient method that can make use of existing infrastructure. Trainloads of 2,000 tons capacity (about 2 Megalitres) are possible, subject to rail water wagons being available. Other countries such as India and Pakistan have used this method in the past but I am unable to source any references to this occurrence in Australia.
3. VLCCs – Very Large Crude Carriers – There have been several papers outlining costs of shipping bulk water over distances of several thousands of kilometers. In a North American paper on the subject, their conclusion was that it was not economically sustainable to undertake such a task.
4. Underground pipeline – High construction costs, but once in place, long term viability and operational lifetimes of beyond 50 years are the norm. Users along the pipeline route can also access the resource.
39 VIC Dept of Sustainability Report by SKM in collaboration with Monash University pp 66-76 website: http://www.sustainability.vic.gov.au/resources/documents/SKM_Geothermal_Report.pdf 40 “Distillation Plant Development and Cost Update”, by Neil M Wade, Website: http://www.desline.com/articoli/4051.pdf
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Whilst it may be economical to simply build underground water pipelines is a ‘straight line A-to-B configuration’, it may be worth considering building this pipeline along existing transport corridors/easements such as the existing road and/or rail corridors. Of particular use would be roads with wide easements that were once part of our renowned stock routes. Any pipeline construction along these wide easements should minimize disruption to passing traffic.
Many of the Country Fire Authority (CFA) stations have been established along Main Supply Route (MSR) corridors. Given the requirement for easy access to water for these units, it may be worthwhile planning for secure water access to the pipeline at these CFA stations
Dams and reservoirs in this area already depleted. Several CFA units in the Grampians area are currently unable to conduct ‘fuel reduction’ burns because they have to save all their water for ‘the real thing’, a major bushfire. Pipelines from a desalination plant will guarantee fire-fighting access to water. .
Use of the existing transport corridors should reduce impact on landowners, costs for additional easement purchase from graziers etc.
Comment
Desalination Plants guarantee the delivery of water around the clock. This enables authorities, industry and users to adequately plan their business around realistic delivery and seasonal timetables.
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Key Elements Key elements for successfully commissioning such a project in the Portland Bay Area are:
1. Easy access to unpolluted seawater
2. Deep Water Port Access
3. Adequate Fresh Groundwater Reserves
4. Main Supply Routes North
5. New Power Station
6. Heat Exchanger Unit
7. Significant Carbon Credits
8. Geothermal Resources
Details of these of the key elements that identify Portland as a prime site for an effort of this scale are outlined on Page 35 of this document.
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Why Portland
Portland Aluminium – The Smelter in the Park
This facility generates in excess of 340,000 tonnes of Aluminium per annum. The smelter is managed by Alcoa and uses approx. 10% of the Total State Electricity Production in Victoria.
Some vital statistics about average datasets for Australian Aluminium production41 include:
• Energy costs are about 30% of operating costs
• Electricity levels of approx 15 KWh required per Kg of metal produced.
• 3 Megalitres of water per tonne of metal produced.
• Green House Gas (GHG) emissions of approx 2.5 tonnes CO2-e per tonne of metal produced.
In October 2006, Alcoa won the prestigious Prime Minister’s Community Business Partnership Award for community work in Western Australia. 42
“Working in partnership not only has the potential to enrich people’s lives but can also deliver tangible results for all Australians. Community and business partnerships are a driver to accomplish better outcomes than any group acting alone could achieve.”
The Hon. John Howard, MP, the Prime Minister of Australia.
Greenhouse gas emissions are becoming an increasing area of concern with activist groups adopting a more militant stance toward industry.
Many industry leaders are seeking ways of both effectively reducing their greenhouse gas emissions and ‘value-adding’ other goods and services by utilizing by-product development. This will then achieve acceptable results to both communities and the corporate ‘bottom-line’.
41 Australian Aluminium Council website: http://www.aluminium.org.au/Page.php?d=1050 42 Alcoa website: http://www.alcoa.com/australia/en/news/releases/20061018_Alcoa_wins_PM_awards.asp
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Official statements linking ‘bottom-line’ to environmental issues by Portland Aluminium43 may be summarized as follows;
“The plan looks more critically at all aspects of the business through what could be referred to as the “triple bottom line” of business enterprise.
The triple bottom line refers to balancing environmental, economic and social values in business.
In todayʹs climate of strong environmental awareness, it makes sense to ensure environmental and social concerns factor into the equation of making money.”
The International Community is already discussing the issues involving carbon credits.
NSW is already trading in Carbon Credits.44
“New South Wales continues to be a pioneer in introducing carbon dioxide emissions trading and exploring methods to use forests for Greenhouse‐friendly products. The first carbon trades in Australia involved State Forests of NSW working with Pacific Power and Delta Electricity.
It is an exciting new era for those who grow forests. Now, when we create a healthy forest, we not only receive a return for the wood products being grown but may also benefit from trading in carbon credits.”
Comment
Pro-active support by Portland Aluminium for a Desalination Plant where potable water is used for drought mitigation purposes will ensure generation of Carbon Credits to offset GHG emissions.
This activity fits well within the “triple bottom line” doctrine of Portland Aluminium.
43 Smelter in the Park & Ballarat University website: http://www.ballarat.edu.au/projects/ensus/case_studies/PA/index.html 44 State Forests of NSW website: http://www.forest.nsw.gov.au/publication/forest_facts/greenhouse/default.asp
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Power Generation
Desalination plants require large capacity power stations to run them, and also provide pumping capacity for fresh water product.
There are currently plans for a 1,000 MW gas-fired power station to be built at Mortlake in Victoria. 45
Mortlake is a small town approximately 140 kms east of Portland.
This plant is close to the 500 KV transmission lines that carry power to the Alcoa Aluminium Smelter in Portland – hence the power line easement for this line may also be used for further electricity distribution.
This power station will be fed from the Otway Gas Project.46
Origin Energy plan that construction will take 30 months, and based on the current trends of National Electricity Market (NEM) indicators, 2010 appears favourable for a construction start date.
Perhaps this starting date may be brought forward, subject to compelling reasons for immediate commencement.
Approval has also been given for the Macarthur Wind Project47 just north of Portland. This facility will have a generating capacity of approx 330 MW, which can also be used for pumping water north.
Key Elements
Portland meets all of the elements necessary for success of this project:
1. Easy access to unpolluted seawater – whilst Port Phillip Bay, close to the power stations of Melbourne and Geelong may appear an attractive alternative, the Yarra River continues to pollute the Bay.
There will also be the problem of returning the very high salt concentrates into the fragile Port Phillip Bay ecosystem – always a problematic environmental issue.
2. Deep Water Port Access – Portland already has the only deep water Port between Geelong and Adelaide.
45 Mortlake – Origin Energy Project website: http://www.originenergy.com.au/about/template.php?pageid=1376 46 Otway Gas Project – Woodside Petroleum website: http://www.otway.woodside.com.au/The+Project/ 47 ABC News Website – Macarthur Wind Farm Approval: http://www.abc.net.au/news/newsitems/200610/s1774962.htm
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It is therefore suitable for delivering any large/oversize modules necessary for the Desalination Plant or even the Power Station 140 kms away at Mortlake.
3. Adequate Fresh Groundwater Reserves – The Glenelg Shire (Wannon Water) already has sufficient reserves to begin pumping water northwards once the pipeline and pumping stations have been built. Once the Desalination Plant is on stream, aquifer recharge and additional surplus water can be diverted north.
4. Main Supply Routes North – There are already main road and rail links in place along the north-south corridor linking Portland to Mildura.
Whilst the upgrading of the Portland to Hopetoun standard gauge line has been delayed due to the costs blow-out of the Very Fast Train programme, there are still plans to upgrade this line. This will enable delivery of pipes without additional heavy vehicle traffic on the already busy road network.
5. New Power Generation Facilities – The Mortlake power station is already planned for this area.
This 1,000 MW facility will have the capacity to supply the pumping stations, and use much of the existing power line easements in linking the electricity grid.
The Macarthur Wind Farm project has also been approved, with construction given the green light
6. Heat Exchanger Unit – The Portland Aluminium Smelter uses approximately 10% of the total power consumption in Victoria.
After this massive energy load has been used to produce the extremely high temperatures (800 deg C and above) the heat is just dissipated into the air, wasted.
This heat resource may be captured through conventional Heat Exchanger Technology and then used to heat and distill seawater through the desalination process of Multi-Effect Distillation.
7. Significant Carbon Credits – The GHG emission levels from the electrical generation using lignite at the Yallourn Power Station can be offset by extending the “Smelter in the Park” concept northwards, with the supply of potable water to industries, towns, communities and new forests.
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8. Geothermal Resources – Coupled with the Heat Exchanger from the Smelter, this proven Geothermal Asset that lies 1,300 metres below Portland will also help significantly reduce the heating costs for the Distillation Process.
Litigation – The Ultimate Motivator
Australia is a signatory under U.N Charter of Human Rights.48
The specific reference is Article 25.
(1) Everyone has the right to a standard of living adequate for the health and well‐being of himself and of his family, including food, clothing, housing and medical care and necessary social services, and the right to security in the event of unemployment, sickness, disability, widowhood, old age or other lack of livelihood in circumstances beyond his control.
Whilst there may be legal interpretations as to the exact meaning of citizens having the “right to a standard of living……including food,” it would be a brave Judiciary System that would refuse to recognize “water” as an integral part of “food”.
If Government Authorities therefore fail in taking all reasonable steps to ensure that their citizens have adequate access to water – including developing new water sources, then they too may face lawsuits.
This would be a parallel situation to those property owners in Gippsland, who are seeking compensation for the loss of their properties because of poor fire management practice.
48 UN Charter Of Human Rights website: http://www.un.org/Overview/rights.html
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Next Steps
A. Viability, Planning and Consultative Phases, including Environmental Impact Studies. Approvals issued if viable.
B. Concurrent construction of water pipelines between the major aquifers linking industry, communities, towns and cities from Portland northwards.
C. Construction of Desalination Plant near the Portland Smelter – ensuring use of Heat Exchanger Technology for significant reduction in energy and associated costs.
D. Re-evaluation of the Portland Geothermal bore complex as a contributing resource in heating seawater in the MED process.
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Conclusion
The need for action
There are many favourable elements already in place with the Southwest of Victoria that can provide a sound base for such a project, especially with:
1 The Aluminium Smelter and its significant heat byproduct, and
2 The Portland Geothermal Resource.
Strategies outlined in this document provide a sound blueprint for the development of Desalination Projects for those other Australian communities adjacent to facilities that produce significant heat by-product.
These sites include Power Stations (Gippsland VIC), Steel Works (Wollongong NSW), Newcastle (NSW) and the Aluminium Smelter (Gladstone QLD).
Greenhouse gas emission and carbon credit trading will soon become a prime consideration in Government Policy affecting industry and revenues.
Additionally, there are the social issues of responsible environmental and water management that will be thoroughly scrutinized by the public and the press.
The drought story continues to unfold.
Many of our forests, farms, rivers, communities and cities are dying of thirst or being devastated by bushfires.
Without adequate water, we will be unable to prevent further devastation.
“I love a charcoal country
A land of sweeping flames
Of burnt out houses, bushland…
…And little animals’ remains”
Graham Mibus Unpublished Works 2006
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Index abalone, 29 aquifer replenishment, 26–27
quarantine & sterile water, 29 quarantine & sterile water, 29
aquifers, 15, See also groundwater reserves Ash Wednesday fires, 20 Ballarat, 15 Beyond Blue, 10 blue gum plantations, 18, 21, 25 Bureau of Meteorology Map, 8 bushfire, 18, 31 carbon credits, 34, 37, 39 Climate Change, 6 Commonwealth Assistance Funding, 16 complacency, risks of, 16–18 Country Fire Authority, 21, 31 crop yield failure, 6 deep water port access, 36 delivering water, 30–31 Delta Electricity, 34 desalination, 16–30
energy costs of, 30 multi-effect distillation (MED), 29, 36 multistage flash (MSF), 28 Reverse Osmosis (RO), 29
drought 2002-2003, 9 stories, 6, 9, 10, 17, 20
Drought Relief Programmes, 6 dust storms, 24 dust-bowl conditions, 25 El Niño drought, 23 energy costs of desalination, 30 export collapse, 18 Eyre Peninsula bushfire, 23 farm walkouts, 17 farmer suicides, 10 firestorm, 18 ganglioneuritis, 29 gas-fired power station, 35 geothermal bores, 30, 37 Glenelg Hopkins Catchment Management
Authority, 14 Gold Coast City, 27 golden soil, 19–25 Goulburn, 6 Greater Green Triangle, 14–15
rainfall map, 15 greenhouse gas emission, 33, 34, 37, 39 groundcover. See shelterbelts groundwater reserves, 13–15
for desalination project success, 36 permissible extraction, 14 recharge capacity, 14
harvest reduction, 8
heat exchanger unit, 36 Heywood Pulp Mill, 26 Iluka Minerals Sands Project, 25 International Water Management Institute, 26 key elements (for desalination project success),
35–37 Macarthur Wind Farm Project, 35, 36 Mallee district, 11 Mortlake, 35 multi-effect distillation, 29, 36 National Water Initiative, 27 Origin Energy, 35 Pacific Power, 34 Penola Pulp Mill, 26 Permissible Annual Volume (PAV) extraction, 14 pipelines, where to build, 31 port access - deep water, 36 Portland Aluminium, 30, 33 Portland geothermal bores, 30, 37, 38 power generation, 35, 36 Primary Industries, Victorian Department of, 11 quarantine protocols, 29 rainfall trends, 8 Region of Interest, 11 Rural Sector Collapse, 16 shelterbelts, 18
loss of, 20 soil, importance of, 20 sterile water, 29 stock sell-offs, 9, 17 storage levels, 11–12 supply routes, 36 temperatures, extremely high, 36 Timbercorp, 18 topsoil loss, 19, 23 tree plantations, 18 triple bottom line, 34 unpolluted seawater, 35 Very Large Crude Carriers (VLCCs), 30 Victorian Department of Primary Industries, 11 water delivery, 31, 36 water resources
access for fire-fighting, 31 aquifer replenishment, 26–27 aquifers, 13–15 audit, national, 27 delivery, 30–31, 36 groundwater reserves, 13–15 rainfall, 8 storage levels, 11–12
water storage levels, 11–12 wheat exports, 6 Wimmera district, 11 Yallourn Power Station, 37
40