October Update: Field & Microbiology Testing, Design Changes
October 23, 2012 2 Comments
Hello everyone! It has been another intense month for the PotaVida team. We have monitors in six countries for expert review, an independent university laboratory testing our monitors, and a new, more user friendly water bag that will make monitoring your solar disinfection simpler and more intuitive.
PotaVida Prototypes go to Africa, Europe and Latin America!
We currently have expert advisors in Spain, Ghana, Zambia, and Senegal reviewing PotaVida prototypes. Special thanks to Fundacion SODIS director Matthias Saladin, World Vision Core Program Manager for Western Africa Sam Diarra, World Vision Water and Sanitation Director for Southern Africa Emmanuel Opong, Royal College of Surgeons in Ireland SODIS researcher Kevin McGuigan, and WaterAid Nicaragua Country Director Joshua Briemburg.
These experts are providing excellent feedback on the usability, desirability, and intuitiveness of the monitors. We are thrilled to have their insight into the value-add that the monitors provide to the SODIS process. In Senegal specifically, 100% of the SODIS users interviewed by Dr. Kevin McGuigan’s research group liked the monitor and supported the technology because they can easily know when their water is treated.
Use Cases: A Great Design Exercise
Charlie and Jackie collaborated with Essential Design engineer Scott Stropkay on thinking about our monitor design in the context of specific usage cases. This led to the selection of our water bag model with an integrated PotaVida monitor. We believe that an all-in-one package which doesn’t require the user to provide a container or fasten a monitor to it will simplify the disinfection process and user interaction. The net result is a better design that is more intuitive and will safely store disinfected water.
University of Arizona Microbiological Testing is Underway
PotaVida sent four of our SODIS monitor prototypes to Dr. Chuck Gerba’s lab at the University in Arizona at the end of September. This week, the lab is performing their first tests with our monitors in order to correlate our light measurements with E. coli die-off rates. We’re eager to hear the results of these initial experiments. These, and the follow up tests, will be used to calibrate and evaluate our bag and bottle prototypes under diverse temperature, cloud cover, and turbidity conditions.
Thanks for reading!