[Solutions] Water purification using corn cobs, innovation by 13 yr old girl from Odisha

[Nikhil VJ]

13 yr old girl, Lalita Prasida Sripada Srisai from Koraput, Odisha,
shares alternate, low cost and eco-friendly method to purify #water
using corn cobs


https://www.googlesciencefair.com/projects/en/2015/24b479982c1c501f106a085b46e4b79247f2b64c4e0d44213c1038ce6d80c58a
>> this page has enough detailed information to help anyone get started at their own end. I liked the format.. let's publish more solutions this way.

Excerpts:
" If the drain pipe of the household is connected to a chamber having
different layers of corn cobs in partition layers or to an S-trap pipe
having corn cobs, it will separate about more than 70-80 % of
contaminants including suspended particles from the waste water"

"Corn cobs fitted to bamboos buried on the ground floor of the ponds
and allowed two to three weeks to stand can be useful for cleaning of
water in ponds, tanks and rivers. This is also useful to clean
overhead water tanks of individual households and community tanks."

News / social media posts:
https://twitter.com/sagar13d/status/646213911176417281?ref_src=twsrc^tfw
http://www.ndtv.com/offbeat/odisha-girl-13-wins-big-award-at-google-science-fair-1220907


With water set to become a very scarce resource especially in
rain-deficit states, the pure sources will quickly get exhausted and
then people will have to turn to sources that they'd otherwise have
avoided. Spreading knowledge like this: simple ways to purify as much
as possible, could make a lot of difference.

Also, here's a thought regarding education : What if our children's
time was invested in engaging with heretofore unsolved problems
instead of spending hundreds of days solving already solved problems?

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Cheers,
Nikhil
+91-966-583-1250
Pune, India
Self-designed learner at Swaraj University <http://www.swarajuniversity.org>
http://nikhilsheth.blogspot.in