Re: Fluorescent ballasts anyone?

Rich Grise <richgrise@xxxxxxxxxxx> wrote:

On Wed, 05 Jul 2006 20:44:47 -0400, Mike Monett wrote:
Sergey Kubushin <ksi@xxxxxxxx> wrote:

However I'm seriously considering building my own ozonator with
those lamps. They seem to be available and they are relatively
cheap.

I was under the impression UV couldn't make a very strong ozone
concentration, and you needed corona discharge to reach 3% or more.
Is there a special reason you want to use lamps besides cost and
availability?

I can't imagine how lamps can make ozone in liquid water, no matter
what the wavelength, or transparency of the envelope. Maybe it's just
germicidal lamps and the water goes through the chamber and gets
disinfected by the UV on its way through.

The fact that he says he had to start digging, just to replace a
couple of germidicadal lamps, sounds a little suspicious to me.

Thanks,
Rich

You are right, UV germicidal lamps are used to treat the water directly.
Unfortunately, the combination of low power and short contact time means
they are often not very effective. I have seen the cartridges you have to
replace periodically jammed full of bacteria. Apparently they were
sunbathing in the light:)

However, Sergey's application appears to be different. According to this
url, air is passed over the bulb then the ozone is injected into the water:

http://www.appliedozone.com/pz_series.html

However, I was under the impression that UV was not a very efficient method
of making ozone, especially considering it has to make enough to treat an
entire pool.

Regards,

Mike Monett
.

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