View Full Version : Now with improved Purification technology even Giardia can get a tan!

Johnny Thunder
09-05-2007, 10:15

When I was a nerd I spoke as a nerd. I understood as a nerd. I thought as a nerd. But though I became a hiker I still drank like a nerd.


Gray Blazer
09-05-2007, 10:49
Be sure to read the comments under the article. I thought the posters here were tough.

09-05-2007, 20:24
Where's everybody been? Solar water disinfection is an old technique. At its heart is the same UV physics that the SteriPen and other such methods are based upon.

"The Solar Water Disinfection (SODIS) process is a simple technology used to improve the microbiological quality of drinking water. SODIS uses solar radiation to destroy pathogenic microorganisms which cause water borne diseases.

SODIS is ideal to treat small quantities of water. Contaminated water is filled into transparent plastic bottles and exposed to full sunlight for six hours.
Sunlight is treating the contaminated water through two synergetic mechanisms: Radiation in the spectrum of UV-A (wavelength 320-400nm) and increased water temperature. If the water temperatures raises above 50C, the disinfection process is three times faster."