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Monday, April 25, 2011


Fog harvesting for water

April 25, 2011 

MIT researcher Shreerang Chhatre and associates have developed new ways to use “fog harvesting” to provide water to the world’s poor.

A fog-harvesting device consists of a fence-like mesh p anel, which attracts droplets, connected to receptacles into which water drips. To build larger fog harvesters, researchers generally use mesh, rather than a solid surface, because a completely impermeable object creates wind currents that will drag water droplets away from it.

In some field tests, fog harvesters have captured one liter of water (roughly a quart) per one square meter of mesh, per day. Chhatre is conducting laboratory tests to improve the water collection ability of existing meshes.

Source: http://goo.gl/ZllyA

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