Bryan Berndt
Certitude Belongs 2 Those With Only 1 Encyclopedia
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Sites I Like
May 24th, 9:19am
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Cheaper Desalination; ~1/4 - 1/5 the energy of reverse osmosis
A fresh way to take the salt out of seawater
http://www.economist.com/sciencetechnology/displaystory.cfm?story_id=14743791
This uses similar amount of energy as pumping up well water.
1 square meter of solar panel @ ~20% efficiency (~$500 today) is enough to power the making of 1,000 liters of fresh water each day.
] These Vancouverites showed it off in Dubai a few weeks ago.
http://www.saltworkstech.com/press_20091123.php
http://www.economist.com/sciencetechnology/displaystory.cfm?story_id=14743791
........[
Even the best reverse-osmosis plants require 3.7 kilowatt hours (kWh) of energy to produce 1,000 litres of drinking water. Mr Sparrow and Mr Zoshi, by contrast, reckon they can produce that much fresh water with less than 1 kWh of electricity, and no other paid-for source of power is needed. Their process is fuelled by concentration gradients of salinity between different vessels of brine. These different salinities are brought about by evaporation.
.....
This uses similar amount of energy as pumping up well water.
1 square meter of solar panel @ ~20% efficiency (~$500 today) is enough to power the making of 1,000 liters of fresh water each day.
] These Vancouverites showed it off in Dubai a few weeks ago.
http://www.saltworkstech.com/press_20091123.php
