An 18 year old student from the Houston area won international acclaim earlier this year when he unveiled a science project he developed on his own, in his spare time. It’s a water filter that can remove heavy metals from electronic waste from drinking water.
The problem of e-waste has been well documented. As we adopt more and more personal electronics, we generate more and more e-waste. It might be hard to believe, but we’re only seeing the tip of the iceberg right now. Smartphones are everywhere in some countries already, but new coverage subscriptions are projected to more than double over the next 5 years, with most of those new subscriptions coming from Asia Pacific, the Middle East, and Africa. Ericsson Mobility recently projected that by the year 2020, 70% of the world’s population will be using smartphones.
The issue is compounded by the ideas of planned obsolescence, and Moore’s law, which keep us buying new devices as the software and hardware in our existing devices become obsolete every few years. As a result, we’re throwing away millions of tons of electronics each year.
And these devices are, unfortunately, pretty toxic to the environment. Some of the materials can be recycled, but the majority end up in landfills or massive waste piles. A report earlier this year found that 70% of the heavy metals in US landfills come from electronics, even though only 2% of the trash is electronic waste. It’s nasty stuff.
Countries in Africa and Asia are importing much of this waste, accepting the toxicity in exchange for the money they can make by taking it off the hands of western countries.
18 year old Perry Alagappan, from Houston, took the problem head on.
He developed a new filter, using graphene nanotubes, that can filter 99% of the heavy metals from water. The filter he made can be reproduced for about $20, making his solution 5 times less expensive than the reverse osmosis technology that has been widely used in the past. The filter is renewable, unlike reverse osmosis filters that are discarded and replaced. After each use, you rinse the filter with vinegar, and it’s ready to go again. And the filtered metals can be used or sold for profit.
Perhaps the best part of this story is that Perry has decided to make his project open source, so that other researchers around the world can pick up his work and make further improvements without worrying about infringing on his patents.
This young man started working on this project out of a personal desire to help his family. He explains, “I became interested in water purification when I visited my grandparents in India, and saw with my own eyes how electronic waste severely contaminated the environment.”
Perry Alagappan was awarded the Stockholm Junior Water Prize at World Water Week for this invention. He also won an AXA Achievement Scholarship. He was accepted to study at Stanford, and began working on his undergraduate Pre-engineering degree there this fall.
Here he is to tell you about it himself…
Sources:
• Texas teenager creates $20 water purifier to tackle toxic e-waste pollution
• American student wins 2015 Stockholm Junior Water Prize for revolutionizing method to remove electronic waste from water
• Ericsson Mobility Report: 70 percent of world’s population using smartphones by 2020
• Global E-Waste Management Market, Material (Metals, Plastic, & Glass), Sources (Household Appliances, Entertainment & Consumer Electronics, IT & Telecommunication), industry size, share, growth, trends and forecast 2015-2021
COMMENTS(8)
Sounds like this young man has his head screwed on straight. I wish him the very best in future and look forward to seeing him earn a Nobel award.
What are the details for the construction of this water filter?
I read these articles and see these videos and then I never see anything about it again. What happens to the cure for cancer? The $5 water purification system, or in this case the heavy metal filter? Nice story but I bet $1 I never see the $20 filter in a store that I can buy from.
What a heart felt move in a remarkable way. Who gives this life saving information for free? What a honor to know people like him caring for others and not the mighty dollar. Bravo standing ovation!!!!
Since this is open source, is there a link to the plans or drawings of the filtration structure?
For those that want details here is a link to the paper — http://www.wef.org/WorkArea/linkit.aspx?LinkIdentifier=id&ItemID=12884906159&libID=12884906115
Thanks Roy
Congrats to this fine young man. I would like him to contact me, in Portland, OR. We have a company just outside of the metro area, that has created a nano technology water purification system, being used in 3rd world countries. I am willing to bet that they would offer him a job in a minute, to work with them! Then I could have the pleasure of meeting him and take him to dinner! I would be happy to offer my friendship to him and his family and help them find their way around the Portland area, including contacting this company to set up a visit for him, if requested. Perhaps his family might come up and relocate here as well. No hurricanes up here!
Besides we have some great colleges here, including Reed which has a nuclear reactor for Studies. If interested, please contact me direct at:brothertom2020@yahoo.com