Laguna Beach High School InvenTeam

Laguna Beach, CA
Water Sterilization System for High Sunlight Environments

The Laguna Beach High School InvenTeam invented a water sterilization system for use in areas that have
abundant sunshine but unsafe drinking water. Solar Irradiation of Peroxide System (SIPS) is designed to provide 40-liters of clean drinking water per day. SIPS was designed for use at the Oloolaimutia Elementary School in Maasai Mara, Kenya. SIPS consists of two parts: a solar sterilizer which uses a parabolic reflector to irradiate contaminated water containing hydrogen peroxide at a concentration of 10 ppm, and a peroxide generator which produces hydrogen peroxide for use in the solar sterilizer. When sunlight intensity is high, the solar sterilizer is able to eliminate 100% of contaminating E. coli bacteria in less than five minutes of irradiation. The solar sterilizer was constructed with a modular design, allowing for easy breakdown and set-up and fits inside a 28” x 18” x 10” carrying container. The sterilizer prototype requires four hours of direct sunlight to sterilize 40 L of water in 1 L batches. The peroxide generator prototype uses solar energy to activate a photocatalyst, anthraquinone, which are immobilized on silica plates. The catalyst can be used repeatedly to produce up to 1 gallon of hydrogen peroxide per day. This is sufficient to sterilize 100 L of water using the solar sterilizer.

Watch their 2015 EurekaFest Video


March 2, 2015

Here's Jeremy with the explanation and demonstration of the flow rate control! This is also a great demonstration of what the final product will look like, but you'll have to add the parabolic reflector and Hydrogen Peroxide generator of course!



March 2, 2015

Hello Everyone!

I am pleased to report that we recently hosted a very successful Technical Review to present our preliminary research and generated a lot of interest within the community. Our school's journalism team made a video for us which summarizes our work so far! I'll embed the video below. 


January 30, 2015


We have another video update on our Youtube channel from our parabolic reflector group! We will post more video updates next week, and coming soon we will have an overview video of the goals of our system as a whole. Hopefully that will do a better job of tying together the work that our individual teams are doing!

January 21, 2015

Hi Everyone!  

November 3, 2014