Her presentation describes how it works:

Via: Good News Network:

A 14-year-old New York student was named “America’s Top Young Scientist” for inventing a solar-powered water jug that changes dirty water into purified drinking water.


Deepika Kurup not only surpassed 9 finalists with her science and math skills to win $25,000 from Discovery Education and 3M, she persuaded the judges with a dynamic five-minute LIVE presentation about the plight of a billion poor people who have no access to clean drinking water.

The cost effective and sustainable water-purification system, which harnesses solar energy to disinfect contaminated water uses her own innovative process designed to overcome current problems with portable purification. Her process can kill many types of bacteria in a fraction of the time of other methods.

Source: cryptogon.com » 14 Year Old Girl Invents New Solar Water Purification System