Cheap water for India

growing plants eat CO2

It is very simple to convert sea water into fresh water vapour.  You apply one metre of vacuum-even ice goes direct into water vapour.  Leaving all salts and other contaminants behind.

The energy demand here is just one W/Ls.  So every second we extract 1000 l of water vapour.  Which then condensed all for 1 l of liquid fresh water.

In India we use a little 20 W solar powered vacuum pump.  We pump up the water by one metre, then pump the water vapour 2 kilometres inshore.

This is a godsend for farmers along the coast!  They have access to fresh water, with no dangerous and expensive higher pressure filtration.  An eight years effectively free, as the sun shines all day with no charge.  The high pressure reverse osmosis crew are livid!

They're fresh water reduction in as dangerous, energy expensive and requires massive equipment.  The low pressure desalination methods, is massively inexpensive.

And as the water will run back through the rovers into the sea, it will never run out.  We are not dependent on local rainfall patterns.

So during the annual drought in India, we have access to unlimited virtually free fresh water.  We not only lose all salts, but also heavy metals and contaminants.

It is a sort of technology WaterAid should be using.  The have are well drilling is expensive.  This idea is very nearly free!  And more work with any river or sea water,

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