Swiss students develop solar-powered device that purifies water to safety standards
- Innovations Origins
“Our device has four purification modules,” says Marco Muttoni. According to Muttoni, the water undergoes ultra-filtration, electrodialysis, filtration via activated carbon, and UV disinfection. First of all, ultra-filtration removes small particles like dirt and bacteria. Secondly, when electrodialysis is used, an electric field is applied to separate ions from the water. After that, the activated carbon filter disposes of volatile organic compounds. Lastly, the UV deactivates the viruses and tiny bacteria that may have survived.