Scientists were able to create a device for collecting water from dry desert air. They only require heat from the sun. The invention can change the lives of the 2.1 billion people who lack clean drinking water. The main advantage of the invention is that for its operation requires neither electricity nor rain. We have previously reported about an important invention. Finally, he was able to experience.
A group of scientists from the University of California at Berkeley have created a device of porous material MOF (metal-organic structure), is placed in a transparent plastic box. Water vapor from the atmosphere is collected using a MOF material as a sponge, then the water evaporates and is collected in a special tank.
Scientists have tested their device in Scottsdale, Arizona. During the day, they collected about 7 ounces of water. This is quite a bit, but scientists say that their invention is very easy to scale.
Material MOF consists of a metal and carbon organic compounds. Its peculiarity is the existence of a large number of tiny pockets of air between molecules of different types. This allows material to collect the condensate and effectively absorb liquid. Especially effectively it does this at night when relative humidity increases.
When the sun rises, the heat causes evaporation of water from spongy material, but because it is enclosed in a box, the steam is collected and is again getting water into the tank. After that it can be used for drinking.
Device for collecting water already exist, but this is the first device that requires so little resources. There is a small problem is the high cost of production of the MOF, as at the moment the material is produced with the use of expensive zirconium. However, scientists are working MOF with the use of much cheaper aluminium.
At any point in time in our atmosphere contains 13 sextillion water. Obtaining affordable way to use it can solve many present and future problems of the people.