WATERSAVR

WaterSavr – The Product
  • WaterSavr is an advanced mono-layer technology that offers users the ability to save substantial volumes of water through decreasing evaporation.
  • Through its unique self spreading ability, a mono-layer (one molecule thick) is formed on the water surface. A high surface tension allows it to remain in place or reform even during periods of adverse weather.
  • WaterSavr, on average, reduces evaporation by 30%. Trials and commercial applications have shown even greater savings.
  • The composition of WaterSavr is unique. All components used in the manufacture are food grade and will biodegrade after 24 - 48 hours.
  • The product is delivered as a powder and applied automatically via a series of solar powered automated spreaders. These have been designed exclusively for the WaterSavr product and are effective, competitively priced and require minimal staff hours.

Evaporation – Why control it?

  • In Australia, the evaporative rates range from a relatively low 1,000mm (1m) to an astounding 4,000mm (4m) per annum! (BoM, 2007)
  • The median (2m) represents a loss of 20ML (twenty million litres) per hectare, per annum! At an estimated cost of only $0.40c/KL this represents a loss of $8,000/ha/year.
  • Major city evaporation rates (BoM, 2007):
    • Perth: 1.8 – 2m p.a.
    • Adelaide: 1.7m p.a.
    • Melbourne: 1.3m p.a.
    • Sydney: 1.5m p.a.
    • Brisbane: 1.6m p.a.
  • Fact: The highest evaporation rates in Australia are experienced in Telfer, Western Australia. The average evaporation rate is 4m p.a! (BoM, 2007)
  • The typical Australian household uses 0.5ML (five hundred thousand) litres of water a day. The savings generated on a 1ha water body with a 2m evaporation rate are enough to supply 40 houses for an entire year!

Lower storage levels = high evaporation rates

  • A number of major Australian storages are now below 20-40%. As the depth decreases, evaporative rates typically increase.
  • Many of Australia’s water storages have been formed through damming a natural river flow. Unfortunately, this has provided us with some very large, shallow storages. Shallow storage areas attract a higher level of evaporation due to:
    • Increased temperature variation (especially in Summer)
    • High exposure to wind

Why use a mono-layer?

Mono layers have proved themselves to be extremely effective in Australian conditions. Whilst there are other methods available to reduce evaporative rates, they are costly, require large amounts of infrastructure and can not be easily implemented on many of our major reservoir.
WaterSavr has been developed for drinking water reservoirs. It does not contain any chemicals that can become accumulated over time, is aesthetically neutral and is easily implemented as part of a reservoir management plan. The use of WaterSavr on large reservoirs is made effective through the careful placement of automated applicators and an integrated application plan, with weather patterns and local conditions monitored closely.

What does it cost to reduce evaporation?

  • A typical analysis of a WaterSavr application usually translates to a 5:1 return on investment. In most cases, it won’t actually cost anything to use the product.
  • The average cost of WaterSavr is less than 10% of the cost of residential water.
  • The automated applicators are sold in conjunction with product to provide a turnkey solution. They are designed to specification by our Australian based manufacturer in order to cope with the harsh Australian environment.

The automated M60B boat serviced rolling unit. Services an area of approximately 20ha.

Technical

  • WS breaks down by ultraviolet (sun) light.
  • The end products are carbon dioxide (CO2) and water (H2O)
  • Once WaterSavr is exposed to UV light the long chain fatty alcohols (C-16 and C-18) begin to break down. 
  • The breakdown begins with oxygen from the air plus a UV photon.
  • There are no intermediary products and no other residuals

Approvals

  • WaterSavr has been designated by the United Nations Environmental Programme as Environmentally Sound Technology.
  • WaterSavr has received NSF Certification to ANSI60 – Drinking water treatment chemicals.
  • WaterSavr has been given the Gold Seal approval by the United States EPA.

WaterSavr use in Australia

WaterSavr is used by a number of authorities throughout Australia including:

  • Local councils
  • Water Authorities
  • Farms
  • Power generating companies
  • Mines
  • Timber mills
  • Government bodies

International WaterSavr use

WaterSavr is used in over 10 countries including:

  • USA
  • Mexico
  • Spain
  • Portugal
  • Greece
  • Turkey
  • Italy
  • India
  • Thailand

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