[compost_tea] Re: Air Required was: Air pump selection & 5 gal brewer

From: johnz4wi <greenthumbs_at_cheqnet.net>
Date: Fri, 03 Oct 2003 13:41:20 -0000


There are different kinds of diffusers. www.aquaticeco.com has a
good selection. From coarse to ultra-fine bubble size. I got the
medium bubble stones for my home made brewer.

John


--- In compost_tea_at_yahoogroups.com, soilfoodweb_at_a... wrote:
> As bubbles rise through the liquid, we see fungal strands caught in
the
> interface between the small bubbles rising at different rates
through the through
> the liquid.
> A factor of surface tension? But as the small bubbles move, the
fungal
> strands caught in the interplay of the tiny bubbles are shattered
and ripped apart.
>
>
> I think this is critical when some micrometer size bubbles are
suspended
> basically un-moving in the water, while slightly larger bubbles
move past the
> smaller size bubbles.
>
> I report what I observe. Not being a physicist, I am not certain
what
> physical phenomenon this represents, but fungal strands don't do
well in liquids
> with very small diameter bubbles. Another reason that carbonation
works so well
> to suppress fungal growth?
>
> Elaine Ingham
> President, Soil Foodweb Inc.
> www.soilfoodweb.com
> SFI Oregon, USA
> SFI Australia
> SFI New York
> SFI Europe
> SFI New Zealand
>
> "Hope is not a feeling. It is not the belief that things will turn
out well,
> but the conviction that what we are doing makes sense, no matter
how things
> turn out." -- Vaclav Havel, former President of the Czech
Republic



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Received on Fri Oct 03 2003 - 10:58:46 EDT

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