Skip to comments.Cheap Nanotech Filter Clears Hazardous Microbes and Chemicals from Drinking Water
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 peoplea tenth of the worlds populationdo 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 users needs...
(Excerpt) Read more at scientificamerican.com ...
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.
Get it to market before the Gen21/Marxist left sinks their claws into its distribution.
I’ll be updating for your link. Thanks.
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:
Here is a two stage limestone filter:
Please make a whole house filter. I’ll pay more than $16.
Thanks for the links!
I grew up in DeFuniak Springs and the water was the best I have ever tasted. I remember when the large Coca-Cola bottling plant turned out so many cokes that I would see their bottles all over the South.
Everyone said Coca-Cola located it their because of the water.
Now my Sister lives in Ft. Walton Beach and their water tastes awful. Panama City Bch is nearly as bad but Panama City is generally OK.
Any of the panhandle towns along the I-10 corridor generally have good water.
Please ping me when you get the results of your before and after test.
Firehouse Subs uses food-grade five gallon buckets for their pickles. They sell the buckets for a nominal sum ($2/ea as I recall) and the money goes to a charity.
With two of these buckets you can set up a gravity filter system. Drill two holes in the bottom of one bucket for the candles. Put a couple of 2x4's on the other bucket. Put the candle bucket on top of the 2x4. Water into the top bucket will be filtered and drizzle into the bottom bucket.
$29.97 from Cheaper Than Dirt. The filter is a lot larger than how it looks here. You basically put these in food-safe buckets, drilling the hole in the top bucket for the filter and the bottom for the spigot. The filter adapter is the same size and type as a Berkey so they can be interchanged with Berkey replacement filters. The included filter is also silver impregnated to add an extra bacteria killing element. Being .5 micron, it supposedly removes many heavy metals.
It is the damn credit card processors and Paypal. They have started refusing transactions for certain states from companies like CTD. Luckly Amazon is so blanket and you can get almost everything like this there.
However, there would be absolutely nothing illegal about having someone from out of State buy it and ship it to you. It isn’t a controlled item.
As you probably already know, if you sell to anyone in California you will be harrassed by California Franchise Tax Board. Unless you sell a LOT of stuff in California it is not worth the cost and hassle to do business here. Sucks but I don't blame them.
Looks like you can get them directly from Monolithic cheaper than CTD (you just have to buy each component separately. Save about $10 off the CTD price.
I grew up in NYC. Their municipal water was noted as one of the best in the world. The water was really very good up until the 90’s. Somehow the quality went downhill and I can’t explain it. The city gets its water from the Catskill reservoirs.
Mostly old sewage treatment plants dumping into those reservoirs and runoff. Ummmm...tasty!
You realize of course that the $16.00 figure only refers to the actual makeup of the product, when pushed into production the cost will necessarily increase to $16,000.00 per gallon of water produced.
The water starts out in the reservoir. Then it gets treated with chemicals before being run through a few hundred miles of pipe. Pipe that is decades old, rusty, leaky and maintained by the best union labor available.
A good Katadyn personal water filter costs $300+ and to be safe you should still chemically treat the water for viruses. This new technology would be a great, cheap alternative solution if brought into mass production.
I have just such a system ready to roll. It took some reearch but it works great...and was very short money to set up.
With three 55 gallon plastic barrels hooked in series via a rack system...replenished with filtered rainwater...I'll have no shortage of potable water. And 165 gallons under 1G provides plenty of pressure.
To build a slow sand filter, the details are available at http://www.cawst.org/en/resources/pubs/training-materials/file/186-biosand-filter-for-technicians-manual-eng or you can just poke a hole in the bottom of a 5-gallon pail, fill the bottom inch or so of the pail with gravel, fill the rest of the pail with sand, and that's it.
There's more to building a using a working biosand filter, but that's the simplest setup.
Invented it huh. hmmm.
This is why I like Indians...
Sounds good. Hope they get it on the market soon. I have a well, and filters that fit on the faucet. We also keep several cases of bottled water on hand, and each sink has some water in soda bottles for hand washing etc.
I keep a bunch of those personal hygiene packets of wipes that they use in hospitals on hand to use in case there’s a need to conserve water and limit showers. Then there’s the hot water heater water. Then there’s the rainwater collected.
When Hubby gets the swimming pool set up and diverts the rain water to it, we’ll have about 4,000 gallons in that all by itself.
Have several filters, but it wouldn’t hurt to get more.
“Ill add iodine to the list for extra safety.”
A few drops of potassium iodide (SSKI) to a glass of water renders it safe.
“...it wouldnt be a bad idea to stock up with some of these...”
Barter items after the SHTF...
Thanks for the info and links in this thread.