Water purifier

L

LG&M

Joined
Dec 19, 2005
Messages
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A long time ago I read something about a study on purifying water for 3rd world countries. What they came up with was using a clear 2 liter bottle with some sort of black paper or coating on one side . You fill it with water & lay it on it's side with the black side down & let the suns U.V. rays go to work. Does any one have more info on this? Thanks:)
 
Most of what I have read says if you heat water up to 140oF you have done the job. No it won't kill every living thing in the water but it will make most water safe to drink. And, no it does'nt filter out anything.

This subject is about as explosive Busse vs. Mora so please let's keep the emotional level low. I will try to find the data to backup my statement. I'm not a scientist nor do I test water or have the facilities to do so. If you are going to post on this subject please post the objective and not the subjective. In other words, I have drank raw water on occasion and survived. That alone doesn't make me an expert. I've also suffered 9 months with giardiasis. That doesn't make me an expert except except in the use of toilet paper and finding new ways to deal with stomach cramps.
 
Still stinging from the hornet posts? :D OK, non-chemical low-tech: two liter bottles in tandem, one full of sand, the other full of fine charcoal. This will filter out most organic funk and absorb a lot of heavy metals. You can do this in a length of PVC pipe too.

Codger
 
Do a google search for SODIS (solar disinfection) and you will get alot of info, though some of it will show up in French. Mac
 
It is really amazing how many people in third world countries fie from lack of clean water. Very sad.

Oh, and Codger even dirty water mixes with detergent to kill the little nasties. I aint picky. :p
 
I think I'd rather le me doon and fie than drink dishwater. Don't hold me too that though. You'll know I've done it if I begin to phart soap bubbles.

Distilling is a great way to purify water. There are a thousand ways to "Macguyver" a solar still if no fire is available. Solar is just a lot slower unless you have equatorial sun or a constant cloudless sky. Most organics will not vaporize so get left behind in the evaporation tray, bottle, whatever. Some inorganic pollutants will do so and follow the water vapor, but usually the concentration will be reduced at least. Can't remember who brought it up here a while back, but the goal of purification is to reduce the organic and inorganic pathogens to a level the body can tolerate and deal with, not make absolutely sterile H2O.

Codger
 
Thanks for the link thatmguy. looks close to what I was thinking of.
 
In India, the government is trying to convince folks to filter water through layers of cotton cloth. Apparently, eight or more layers of tightly woven cloth stops the little bugger that causes cholera, a disease that has killed many, many millions there over the years. The filtering cloth is then to be boiled before reuse.

Is there some reference to detergent killing germs? I know washing dishes with soap and water mechanically removes most of the germs, but I had not heard of its germicidal effect. (It does reduce the effectiveness of chlorine as a germicidal agent.) (I attended a dinner at which Jonas Salk [sp?] spoke years ago. When praised in the introduction for his invention of polio vaccine, he said that soap and water were the greatest advances in public health in all of human history.)

This pop bottle-in-the-sun thing sounds like a good school science project. Put in the creek water, and look for/culture for anything alive after X period of time.
 
2dogs said:
Codger and TL I meant water and detergent kills HORNETS. Sorry about the mix up. :o
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He he. Ifn' you put your head under the surface of water and detergent for a few minutes . . . . :D
 
Codger_64 said:
Ok, but how do you get them to drink it?:confused: :D

Codger
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You hold them under long enough and they have to inhale.

OR you could use a tiiiiiiiiiiiiiiiiiiiiiiny lil' funnel.
 
Napalm is faster. And like some former politicians, they don't have to inhale.:p

Codger

OOPS! Water purifiers, I forgot!
 
Have you seen the rodent control method using propane and an igniter? Makes me want to have a job again.
 
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