This girl is definitely going places. Inventions to help improve the quality of life in a renewable and sustainable approach has been the main efforts of many scientists and engineers today. A participant in Google’s Science Fair, Cynthia Lam, developed a system known as H2prO that purifies water while simultaneously generating energy. In the images above; the upper portion is used for purification of water, while the bottom part is used for hydrogen generation which is connected to a fuel cell and the base unit for filtration of water.
Cynthia’s device uses titanium to separate the pollutants from the water. With the addition of oxidizing substances (methanol, glycerol, and EDTA) this mixture increases the production of hydrogen, which is used as fuel and to make the decomposition more efficient. Tests show that the H2prO has a 90% efficiency in the removal of organic pollutants, and the entire process can happen in only two hours. Unfortunately, the system is still unstable (even with such a satisfactory production of photocatalyic hydrogen) so data regarding energy production is slim to none. However, Cynthia is not giving up yet and plans to finalize her design to help many people in developing countries!