Water is the single most important element on the face of the planet. Sure we need air to breathe and land top live on, but it is the blue magic that separates Earth from the other planets and has been the reason for our very existence. While 75% of the planet is covered in water, only 2 to 3 percent of that water is pure drinking water. With human activity wasting and using so much of water each year, how is it that we get the pure water sources filled up each season?
No, I do not wish to tell you the obvious, but intend to remind you of the importance of something that we believe is simple natural phenomenon and take it for granted. Every time it rains, our fresh water resources are getting a refill from Mother Nature. Of course for some of us rain is more romantic and for others poetic. But we won’t discuss that today; let’s talk about that in detail some other day. The point is nature restores water in its purest form by the simple process of evaporation. The process is simple, but people are now using that very same technique to make modern water purifiers.
The new ClearDome Solar Still personal Water Purifier uses the simple principle of evaporation to separate and extract pure water from contaminated water sources. The process of evaporation has always been used by people to make pure water out of sea water. This is exactly the same and it surprises me that none before this have come up with this simple design water purifier.
Foul water is kept in two cases which absorb heat from the sun. The entire system is enclosed in a glass structure and once water separates from its pollutants through the process of evaporation, it condenses on to the glass walls. This water is collected and used for drinking. This is nothing beyond basic high school science, but it has been put to very effective use. Evaporation indeed gives the purest of all waters and that process is sped up by using black containers and reflector mirrors.
While the idea is really great, I still doubt if all chemical contamination is removed this way. I still heavily doubt that. Despite that loophole, this is still way better than your traditional water purifiers. The retail price of the large two people solar still is $495. The small still sells for $385. I still suggest you try and make one yourself; it is really simple and fun too.
Via: ATT
