PRODUCTION OF WATER FROM THE AIR IS ONLY SECONDARY TO PRIMARY WATER AND THERE ARE MANY WAYS OF COLLECTING IT!
Atmospheric water generators
An atmospheric water generator (AWG), is a device that extracts water from humid ambient air. Water vapor in the air is condensed by cooling the air below its dew point, exposing the air to desiccants, or pressurizing the air. Unlike a dehumidifier, an AWG is designed to render the water potable. AWGs are useful where pure drinking water is difficult or impossible to obtain, because there is almost always a small amount of water in the air that can be extracted. The two primary techniques in use are cooling and desiccants.
The extraction of atmospheric water may not be completely free of cost, because significant input of energy is required to drive some AWG processes, sometimes called “trading oil for water”. Certain traditional AWG methods are completely passive, relying on natural temperature differences, and requiring no external energy source. Research has also developed AWG technologies to produce useful yields of water at a reduced (but non-zero) energy cost.
Another more green and sustainable way is the Italian WarkaWater Towers or the Fog Nets seen below.
Italian designer Arturo Vittori has unveiled the WarkaWater Tower, a revolutionary new way to collect clean drinking water in Ethiopia and other parts of Africa. The artist was inspired by a recent trip to a remote village in northeastern Ethiopia where water collection is often a dangerous and incredibly time-consuming process. With just a little financial backing, Vittori hopes the innovative WarkaWater Towers, which take advantage of condensation, will provide a more reliable, efficient and sustainable method of water harvesting for local women and their families.
- 1 History
- 2.1 Cooling condensation
- 2 Modern technologies
- 2.2 Wet desiccation
- 3 In greenhouses
- 4 Commercial Uses
- 5 In fiction
- 6 See also
- 7 References
- USES AND BENEFITS – The AWG technology allows water to be produced at any location in the world. It is independent of stationary water resources. The economic benefit is enhanced by the fact that cold air generated in the condensation process can be used for air-conditioning buildings. Through the decentralized water production, diseases borne by contaminated water are unable to spread. The process has the advantage of having no negative impact on the environment. There is no need to transport and store water at great expense as the water is produced when and where it is needed.
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