13-Year-Old Creates Water Purifier out of Corn Cobs




/ 9 years ago

corn cob water purifier (2)

The “Community Impact Award” in the 13 to 15 year-old age group at Google’s Science Fair in California was won by a brilliant 13-year-old named Lalita Prasida Sripada Srisai, who created an incredible water purifier based on corn cobs. The 9th grader was awarded $10,000, and she might actually receive support from Google to build her project. In order to test her idea for the water purifier, Lalita got some corn from nearby farms and let it dry out in the sun for a month. She then removed the center of the cob and poured 50 ml of water from a kitchen drain pipe. After it ran through the cob, the water was tested for purity, but this was just the beginning of her experiment.

The water purifier itself is based on several layers: long pieces of corn cobs, small pieces of corn cobs, powdered corn cobs, activated charcoal made from corn cobs and fine sand. Water with chemical impurities was poured through these layers, and it looks like the charcoal layer was the one to absorb the most colored substances in the water. However, the long and small pieces of corn cob were very good at catching floating suspended particles, while the powdered corn cob layer absorbed gasoline waste.

corn cob purifier

corn cob water purifier (1)

Overall, the water purifier did its job admirably, which is why Lalita has been receiving plenty of positive feedback on the project.

Thank you Thespiritscience for providing us with this information.



Support eTeknix.com

By supporting eTeknix, you help us grow and continue to bring you the latest newsreviews, and competitions. Follow us on FacebookTwitter and Instagram to keep up with the latest technology news, reviews and more. Share your favourite articles, chat with the team and more. Also check out eTeknix YouTube, where you'll find our latest video reviews, event coverage and features in 4K!

Looking for more exciting features on the latest technology? Check out our What We Know So Far section or our Fun Reads for some interesting original features.

eTeknix Facebook eTeknix Twitter eTeknix Instagram eTeknix Instagram
  • Be Social With eTeknix

    Facebook Twitter YouTube Instagram Reddit RSS Discord Patreon TikTok Twitch
  • Features


Send this to a friend
})