Posted on 05/07/2013 6:07:43 PM PDT by neverdem
A $16 device could provide a family of five with clean water for an entire year
About 780 million people—a tenth of the world’s population—do not have access to clean drinking water. Water laced with contaminants such as bacteria, viruses, lead and arsenic claims millions of lives each year. But an inexpensive device that effectively clears such contaminants from water may help solve this problem.
Thalappil Pradeep and his colleagues at the Indian Institute of Technology Madras developed a $16 nanoparticle water filtration system that promises potable water for even the poorest communities in India and, in the future, for those in other countries sharing the same plight. Although cheap filtration systems have been developed previously, this is the first one to combine microbe-killing capacity with the ability to remove chemical contaminants such as lead and arsenic. Because the filters for microbes and chemicals are separate components, the system can be customized to rid water of microbial contaminants, chemical contaminants or both, depending on the user’s needs...
(Excerpt) Read more at scientificamerican.com ...
Hat tip!
ping
I hope these become widely available. If the SHTF most deaths will occur from drinking contaminated water.
A few of these filters in a community could reduce illnesses by yards and yards. If they work well.....
Silver nano particles to the rescue!
You can get ceramic filters from several prepper sites that use the same basic components as the Berkey systems for $30. I’ll post a link when I’m on a regular computer. You have to build it yourself and supply the buckets.
I’ve ordered 2. I plan to build one and see how well it works on the stream across from my house by having the before and after tested. If it isn’t perfect I’ll add iodine to the list for extra safety.
I think I would choose the “both” option even if I wasn’t sure I needed them.
Great news!
Get it to market before the Gen21/Marxist left sinks their claws into its distribution.
Fine work!
I’ll be updating for your link. Thanks.
Bump!
Bump
Just what I was thinking. If the price becomes reasonable, it wouldn’t be a bad idea to stock up with some of these in case there’s a major power outage or other threats to the water supply. A lot less trouble than rooms full of bottled water.
Man, we could use these in Florida. The water in this state tastes and smells so crappy.
Thanks. I have the ceramic candle used in the Berkeley filters. I think I paid almost $50 for it though. And it does no good against minerals, although it’s great for removing dangerous microbes.
This filter here sounds more efficient.
There is a very inexpensive, effective and reliable filter that was long used in old Mexico. If you take a large block of limestone, hollow out its interior, and carve the lower side to a point, many contaminants are eliminated as water slowly seeps through the rock. Calcium and sometimes magnesium are added.
This is what it looks like in practice:
http://www.youtube.com/watch?v=OvwtpbMF3v0
Here is a two stage limestone filter:
http://i.imgur.com/SecVESo.jpg
Please make a whole house filter. I’ll pay more than $16.
Thanks for the links!
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.
