Re: NANFA-L-- Precipitate

geoffrey kimber (
Thu, 26 Jan 2006 11:09:48 -0700

re: exhausting carbon filters

there is a subtle difference between adsorbing the chlorine and
converting it to something non-toxic

If carbon is just adsorbing the toxin, there are a certain number of
binding sites where the toxin can stick. Once the sites are full, or
approach full, the efficiency of binding the toxin is reduced.

The danger with adsorbtion, it's always possible for something to
displace the toxin from the binding sites if the new chemical has a
higher affinity for the bindig sites. Of course, dumping 6 months of
chlorine into the water stream would be a really bad thing and that's
what I was worried about.

If the carbon is just acting as a catalyst, then there is no storage
of the chlorine, so you can't flush it out accidently.
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