Overseas Vietnamese girl 17 years old entered the final of Google's science contest

The world today has more than 783 million people who still do not have access to clean water and electricity. A new invention by a 17-year-old Australian girl named Vietnam promises to solve both problems at the same time with a device to filter waste water and use domestic waste to generate electricity.

The inventor of this "miracle" device is a girl named Vietnam, Cynthia Sin Nga Lam . Currently, Lam is 17 years old and lives in Melbourne, Australia. In the Global Science Fair hosted by Google this year, I was honored to be in the ranks of 15 young inventors who were able to enter the final round with equipment capable of generating electricity and clean water at the same time . .

The original prototype of the device was called H ₂ Pro. This is a portable machine and uses only solar energy. The main mechanism of operation of the machine is based on the principle: Dirty water will be introduced through one end of the device, then the titanium net will use sunlight to disinfect the water and push them through a filter. The photocatalytic reaction will separate water molecules into oxygen and hydrogen. The amount of hydrogen generated will be directed through fuel-cell devices to generate clean energy (electricity). In addition, domestic contaminants such as detergents, soaps and other pollutants will also provide a rich catalyst to produce hydrogen for this process.

Prototype device named, H ₂ Pro

"There have been several technologies for disinfection of similar water in the world," Lam said. "But these solutions almost all require a power source to operate. Therefore, they cannot be used." While, with this new device, what you need is only sunlight and Titan and still be able to produce clean water, even clean energy can be produced at the same time. export ".

Besides, the cost to create this product is also quite cheap, the design process is simple and can be easily maintained over time. The original design was only a small device, but according to Lam, the technology could be applied on a larger scale in the future. Imagine, a system of titanium plumbing placed on the roof can be used to send waste water to the filter system to produce clean energy at the same time and provide pure water.

"I think many people have not really seen the seriousness of the problems of water pollution and energy shortages in the world, especially in developing countries," Lam added. "I will try to perfect this design, so that the device can truly deliver clean water and energy in a sustainable way, without any external support. It will be a no-no. same great future! ".