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44 Comments
- hollywoodphony, on 10/29/2009, -1/+25A whole liter? And it only takes 2 hours? AND it involves poop? What a great idea!
- robwhite1979, on 10/30/2009, -0/+21Most of the comments here right now are totally missing the point. This isn't to replace the Brita in your fridge, it's for someone living in poverty in a 3rd world country to keep themselves (and kids) from dying because of water contamination...
- Braxford, on 10/29/2009, -1/+19I'm guessing it comes from the rear end of a cow?
- borez, on 10/29/2009, -1/+14Tastes like ***** though.
- travisMarc, on 10/29/2009, -1/+141 Liter in 2 hours is ridiculous. I go through a liter in about 10 minutes.
- budboomer, on 10/29/2009, -1/+13My first guess would be a cow.
- ColonelJessup, on 10/29/2009, -1/+9I'll stick to the Brita filters.
- jonlarge, on 10/29/2009, -2/+8I was reading the article and it seemed interesting. Then I saw that cow manure was used, and I just said "***** this" and stopped reading.
- TFindlay, on 10/29/2009, -1/+7A liter of water is not that much.
- jerryjamesstone, on 10/29/2009, -0/+6Clearly you didn't read the article..only cow sh*t! :-)
- h3110, on 10/30/2009, -0/+5Buried for changing title to make it sound like a practical replacement for Brita. Should have used the original one from the article.
- Amadeus2490, on 10/29/2009, -1/+5Reverse Osmosis is the best commercially-available water you can drink, and it costs about 25 cents a gallon.
- Brocclibob, on 10/29/2009, -1/+5because that is really available in most 3rd world countries in regions where most of the population is below the poverty line...
- askantik, on 10/30/2009, -0/+4lol, it's funny that the description talks about removing E. coli from water... and then the filter is made with cow *****, which is where O157:H7 usually comes from. Nice.
- robwhite1979, on 10/30/2009, -0/+4True, but then you need to burn fuel every time you want water, plus you would need to plan ahead a bit more to ensure you had enough water until you had time to do the next batch. That might not be a huge deal if you had more than one cooking pot, but I'm sure many of the people this technology is meant to benefit don't have a full set of cookware :)
- rushnerd, on 10/30/2009, -0/+4Did ANYONE read this article? This is intended for 3rd world and developing country with next to nothing for money. A way to get cheap, consistent, clean water would be a god-send to some of them.
Try living withOUT tap, a very limited well supply(or none), and no stores or electricity or fuel. Little perspective there. - Barackalypse, on 10/30/2009, -1/+4Or you could avoid all the work and just use a fire to boil the water and kill 100% of the viruses and protozoa. Unfortunately neither solution will help if the water is contaminated with chemicals from mining or industrial waste.
- Barackalypse, on 10/30/2009, -1/+4They can already do that by boiling the water and that method ensures 100% kill rate on viruses and protozoa.
- jv2k, on 10/30/2009, -0/+3Wells since the witty one liner has already been taken:
in poor countries there is bound to be cows around and in america they sell it in garden sections of stores. - spritom, on 10/29/2009, -1/+4What if my cows are all out on lease at the moment? Do I have to use cow excrement for the fire? Or can other forms of heat be used?
- TConundrum, on 10/30/2009, -2/+5Saw cow manure and closed it immediately.
- MWeather, on 10/30/2009, -0/+2The stomach only holds a liter.
- laser314, on 10/30/2009, -0/+2Come to Wisconsin and smell our dairy air.
- esb82, on 10/30/2009, -1/+3The Internet is a great way, perhaps the best way, to reach aid workers who come from developed countries and from online areas within developing countries. Much of their effort is focused on innovating and distributing low-tech solutions to common problems in the third world, such as more efficient wood-burning ovens, refrigeration without electricity, and especially water purification. If you have better ideas for communicating these findings to the people who deliver them, by all means do it your way. But if you're going to be a cynic, at least be informed.
- dralezero, on 10/30/2009, -0/+2So how do you use it? Like in the picture from the source? Fill the cylinder with water and hold it above a cup and the water will slowly seep through the clay filter?
- jv2k, on 10/30/2009, -0/+1Yea the author makes it seem like this is some do it yourself brita replacement.
- bobroberts1953, on 10/30/2009, -0/+1It would make more sense to use this method to make filter elements that fit into hard fired clay tubes, The "green" disks could be replaced as needed and the fired holder would withstand harsh cleaning.
- Amadeus2490, on 10/30/2009, -0/+1Exactly. They need to set up more RO machines out front of their pharmacies.
- cynic573, on 10/30/2009, -2/+3Then certainly posting it on the internet isn't the best way to get the word out.
- rusty0101, on 10/30/2009, -0/+1My question is "Will this help at a community level?" This looks like a good solution for an individual or small family, but getting it to scale up does not look like it will be easy.
As far as the use of cow manure and the thought of boiling water goes, exactly what do you expect they are going to use to boil the water with anyway? In most places that, and cooking is the use they put cow manure to. It's not like they have a ready supply of natural gas hanging around to work with. At least not in the volume and concentration needed. - robwhite1979, on 10/30/2009, -0/+1I can only assume that (unlike pictures of kittens, pedobears, and bacon) that Digg wasn't probably the first place this was announced.
- BluZebra, on 10/30/2009, -1/+2Cool.
*turns on tap*
*fills cup with water*
*drinks*
Filtering tap water is too much work. - mwilhelm, on 10/30/2009, -0/+1Jerry, not only does the article not say that, it wouldn't make logical sense if it did.
I'm no chemist, but my bet is that horse *****, or any other manure composed entirely of wild roughage would do the trick.
I doubt it would work with a diet high in fortified grains, though since there is probably some specific property of the particles in rough plant matter which produce the desired properties in burning the organic matter from the filter.
but, like i said, not a chemist. In practice, if you're in a situation where u need to do this - it is likely you have nothing to lose by using whatever resources are at your disposal. - bemenaker, on 10/30/2009, -0/+1RO water is too clean. A charcoal filter is all you need.
- LuxFestinus, on 10/30/2009, -0/+1I would of liked to have seen pictures of the filter at each stage of development.
- toothbrush12345, on 10/30/2009, -0/+1No wonder green ***** never takes off
- sleestakslayer, on 10/31/2009, -0/+1It is very interesting, but the article was very poorly written.
- frodobaggins, on 10/30/2009, -0/+1Best pun I've heard this week.
- Taiyoryu, on 10/30/2009, -0/+1All the people poopooing the cow manure need to understand that it's a biofuel. The manure is what fuels the fire. You can substitute wood if you want, but manure is often more plentiful than wood in some regions of the world. Wood is better suited as a building material than a fuel. Besides, manure does not go into making of the filter, and even if it did, since the filter is fired, any organics and pathogens would burn away just like the straw and rice would. The scientific understanding and world view of the layman is abhorrent.
- hereticoftruth, on 10/30/2009, -1/+1Maybe they could be made cheaper and more effective with some local cellulosic pulp made into Britta filter paper knockoffs? Just a thought.
- wildkeith, on 10/30/2009, -2/+1The problem wit these filters is that they take many important minerals out of the water like magnesium and calcium which are very important for your health.
- jianshu, on 10/29/2009, -5/+3Where do you even get cow *****?
- nickycakes, on 10/30/2009, -6/+2Stupid hippies.
- inactive, on 10/29/2009, -6/+1Man your stomach must be huge...
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