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Old 16-08-2003, 08:42 PM
 
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Default Skippy Filter man says....

no, actually, UV is rapidly absorbed by water molecules. few people have gin clear
water which has the highest transmission to UV. A spectrophotometer is probably one
of the only ways to show how many "particulates" and colored soluble molecules there
are in pond water. The other is a disk that is lowered into the water and there are
numbers and it shows how turbid the water is.. I think aquatic ecosystems has some of
these. this is a really crude measure of course, a spectrophotometer is accurate.
Ingrid

Andrew Burgess wrote:

writes:

I am a microbiologist meaning I learned it all a while ago for an exam, but at least
I can still read the literature. In all the sites dealing with using UV to kill
microbes in water (with big sucker units) they specifically talk about how
particulates in the water render the sterilizing ability ineffective. Not muddy
water, particulates.


This just violates common sense. Picture the path of the UV photon
in the water. It either hits a microbe, hits a particle or passes right through, right?
Opaque muddy water, odds are it will hit a particle.

Go read the site and see what the particulate concentration is. Its just common
sense.




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