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Introduction
Template:Stub Solar distillation is the use of solar energy to evaporate water, then collecting the recondensed water vapor.
Often a shallow trough, painted black, and flooded. A slanted pane of glass covering, allowing condensed water vapor to slide down into an output channel. Expect 1 gallon per day per square meter of glass.
In 1999, the average American used 60 gallons of water per day (http://www.aquacraft.com/Publications/resident.htm)
Temporary content from Solar water treatment
<img src="http://i84.photobucket.com/albums/k18/gmoke/solardesal.jpg" alt="" title="" />
The <a href="http://www.watercone.com">Watercone®</a> is a solar powered water desalinator that takes salt or brackish water and distills it into freshwater. It is simple to use, lightweight and mobile.
Designed to produce 1.5 liters a day, it provides a child's daily needs for fresh water and reduces the number of children who die as a result of drinking unsafe water, currently estimated to be 5000 or more each and every day.
The WATERCONE® is a long lasting UV resistant Poly Carbonate product and can be used up to 5 years daily. The material is non-toxic, non-flammable and 100% recyclable. The black pan for the saltwater is already made out of 100% recycled PC. Even when the WATERCONE® becomes old and tarnished, it can still be used to collect rain water, as a roof panel or container for other goods.
The Watercone® project is looking for investors and companies to initiate mass production tooling and distribution. So the Watercone can be manufactured for a lower price and become affordable to the people in need... Single products are not available at the moment!
<img src="http://i84.photobucket.com/albums/k18/gmoke/solarwatercone.jpg" alt="" title="" />
The Watercone® was tested in Yemen in 2004 and in the Lake Baikal region of Russia in 2005.
Thanks to <a href="http://www.ecogeek.org/content/view/874/"> Treehugger</a> for bringing this design to my attention.
As suggested above, years from now, when your Watercone® wears out, you can use it to collect rainwater for the gravity drip irrigation system exhibited at the recent <a href="http://www.dailykos.com/story/2007/8/10/19154/3051">Design for the Other 90%</a> show at NYC's Cooper-Hewitt Museum.
<img src="http://i84.photobucket.com/albums/k18/gmoke/gravitydrip.jpg" alt="" title="" />
Change the color of the gravity drip bag to black and you have a solar hot water heater. [See Simple Solar Rules above.]
There are lots of other things you can do with sunlight and plastic containers.
I plant my garden a month or six weeks early by practicing <a href="http://solarray.blogspot.com/2005/03/recycled-solar.html">Recycled Solar</a>. Place a ring of plastic bottles on the soil, fill them with water, plant seeds of your choice (I've grown tomatoes, peppers, zucchini, cucumbers, beans, and greens with this technique) in the middle, and cap it with another bottle with its bottom cut out. This makes a solar heated coldframe or cloche.
<img src="http://i84.photobucket.com/albums/k18/gmoke/IM000099.jpg" alt="" title="" />
<a href="http://www.dailykos.com/story/2007/3/30/142018/700">Solar IS Civil Defense</a>.
Links
- Watercone - design for a solar still. Simple award-winning design, but expected to cost around $50 each.