Great Video and Project, Question

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madisonhaley
Great Video and Project, Question

Really impressed by your project, especially the way it was communicated through your video. I can see how it will be a hugely useful application for households and small communities - the EPA actually has a whole series of grants out right now concerns PFAS in rural communities/agricultural operations (if curious: https://cfpub.epa.gov/ncer_abstracts/index.cfm/fuseaction/recipients.dis...).

It seems like your prototype is meant for a lower flow, what kind of capacity limitations do you expect?

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Gfylak

Thank you for your positive comment I'm glad the video helped communicate our work! The potential for capacitive deionization to facilitate PFAS removal is certainly growing in popularity and, as you pointed out, there are many across the nation working to fill the existing knowledge gaps. Thank you for providing the link -- the EPA continues to strongly support work surrounding the topic and have made many new discoveries possible.

You are correct, our filter operates with a flow rate of ~5.2 mL/min and houses ~10 grams of granular activated carbon. Currently, we are attempting to prove our concept on a smaller scale to demonstrate the potential for application on a larger scale. The biggest challenge we expect to have when scaling up is maintaining a charge distribution across all of the granular activated carbon within the system. However, we expect that increasing the surface area of the current collectors within the chambers will enable us to distribute charge efficiently across a larger bed of GAC.