Switzerland: A large part of the world's population is still forced to drink contaminated and sterile water. Now Swiss experts have developed a multi-layer solar-powered solar water filter for poor countries that has successfully killed the most dangerous E. coli bacterium in the first phase.
However, it also has the potential to destroy other health hazards and germs, and operates solely on solar energy without any extra batteries.
It looks like a smooth rectangular plate made by the EPFL Institute in Switzerland. The research team is headed by Professor Leslo Fouro, who has placed a tube just above it. Filling water from the bottom passes through several layers in several stages. This whole system is enclosed between two glass plates.
Solar water filter that kills germs
Solar water filters developed by Swiss scientists work with the sun and eliminate all major types of germs. Photo: EPLF Institute Switzerland
Solar water filters developed by Swiss scientists work with the sun and eliminate all major types of germs. Photo: EPLF Institute Switzerland
Switzerland: A large part of the world's population is still forced to drink contaminated and sterile water. Now Swiss experts have developed a multi-layer solar-powered solar water filter for poor countries that has successfully killed the most dangerous E. coli bacterium in the first phase.
However, it also has the potential to destroy other health hazards and germs, and operates solely on solar energy without any extra batteries.
It looks like a smooth rectangular plate made by the EPFL Institute in Switzerland. The research team is headed by Professor Leslo Fouro, who has placed a tube just above it. Filling water from the bottom passes through several layers in several stages. This whole system is enclosed between two glass plates.
It is wrapped in nanotars of titanium dioxide over carbon nanotubes. As the sun shines on this system, its ultraviolet rays form reactive oxygen species. They consist of hydrogen peroxide, hydroxide and oxygen.
Reactive oxygen species are excellent at killing viruses and bacteria. This is why countless types of germs are killed instantly. It is expected that other types of contaminants in the water such as pesticides and agrochemicals can also be removed.
The most important role in this system is played by titanium dioxide nanoparticles, which kill germs on their own, and ultraviolet rays also play an important role. The nanotubes then accelerate this work by absorbing heat from the sun. And can provide up to two liters of clean water in a day. If gold nanoparticles are added to it, then the efficiency of this solar water filter can be doubled.
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