According to foreign media reports, now that the desalination methods are also very expensive, solar energy consumption is large, and it is for this reason that people are looking for in a more effective way to accomplish this task. Recently, scientists from Melbourne presents very promising solutions, they developed an only need solar purification system.
It is learned that the System devices used by the Australian Monash University scientists to develop. With the other researchers, they will also be shifted toward sunlight to lighten the load, this is the so-called solar steam generator.
The simple point that these devices will be the sunshine on the water body, and then heated in such a way that it evaporates.
The resulting steam can be used to drive a turbine in the concentrated solar power plants for electricity generation, or to developing countries cheap disinfecting medical equipment power generation, or simply the realization of salt from the water.
However, in response to the last scene, as a result of salt will accumulate on the surface of the material which allows for pure water it becomes difficult. In this regard, Monash University researchers have used a complex design of a solar steam generator to solve the problem. This device consists of an ultra-hydrophilic nature of filter paper with the disk, it is understood that this material with water absorption capacity and its surface is covered with a layer of the sunlight into thermal carbon nanotubes.
The water is through a simple cotton thread into the disk center, where the heat is water into steam, the steam in the clapper to accumulate, and at the same time the salt toward the edge. In this way, the unit can be removed from the water to almost 100 percent of the salt, the research team leader professor Zhang Xiang, this level for practical application is already high enough.
While building up on the edge of the salt can also be collected. Zhang and his team from South Australia with a gulf of saltwater to the unit have been tested and found out that it absorbed the solar spectral, 94 percent of the light. Whether it is dry or wet, as long as the devices are placed in the light of the hot, dry temperature from 25C to 50C, wetting temperature from the 17.5C rises to the 30C, within one minute, it will not work.
Zhang told the foreign media for the new atlas: “This Device (per square meter of surface area) will produce 6 to 8 liters of clean water. Zhang and his colleagues hope that through further work for this device is currently unable to access remote communities with clean water. But it is clear that the value it would not stop there, this technique can also be applied to mining, wastewater treatment and other needed more effective water purification methods.