waterharvester

Many people across the world die every year due to lack of water in drought-affected areas. We often heard stories that the water shortage could be one of the major reason of the world war. Water scarcity has already inflicted disaster on the million lives in the world. Mostly agriculture dependent places face such problems very often. But in the near future, you might not face such problems. MIT Technology has built a device that can produce water from the dry air.

The scholars have used a special kind of material developed at UC Berkley. Using this material, MIT has created a water harvester that utilizes only solar power to pull water from the dry air. Reportedly this can draw three liters of water from the dry air with low humidity (20 to 30%) in just 12 hours. It uses around 1 kg of the metallic organic framework (MOF). The MOF is built using that special material.

This amount of water is really enough for most people for their daily water needs. As per the reports, this harvester has been tested outside the lab. MIT has placed this system on its rooftop to check its real working conditions. The paper printed in the Journal Science defines the design.

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Senior author of the paper, Omar Yaghi said that this is a great invention to overcome the long-term problem, to draw water from the dry air. Before this, we have no other way, except by using extra energy. In this, we have just used the solar power to draw the water from the air.

Twenty years ago, Yaghi created the MOF structure. This combines the metals like aluminum or magnesium. These metals with organic particles create a hard but porous design that can hold liquids and gasses. Many firms are using these MOF to produce water. But this new water harvester uses the MOF designed by Yaghi and his team in 2014 at UC Berkley. They have used Zirconium and adipic acid for designing this MOF.

The website of UC Berkley has explained the working of this amazing tool. As per them, when the air diffuses through the porous of MOF, the water particles attach to the inner surface. Further, when sunlight enters via a window, heats up the MOF and start sending the bound water to the condenser. Now, the vapor condenses as water and falls into a pot.

We hope this invention will improve in near future to help every drought-affected areas.