Bob,
The bubbles you described are too large. Think 20
microns in size. Look at the aerob-a-jet.com web site. Those ponds
are a lot bigger than any compost tea brewer, yet aerobic bacteria do just fine
in those sewage ponds for as long as they have food. Those devices
put micro bubbles into suspension in the water. That technology has
been around for a long time and is more than adequate to keep oxygen available
over the long haul.
As I said, a venturi that produces 20 micron size bubbles is
also available and coupled with a water pump that doesn't beat up the fungi and
bacteria might just solve the problem of having enough air present so the tea
never runs out of disolved oxygen.
And it could solve the situation of running out of oxygen
after the tea is brewed and before it is applied... very simple.. mix the tea
with water that is already saturated with the micro bubbles. You wouldn't
even have to aerate the liquid after that because the micro bubbles will sustain
everything untill the tea is applied. I'm not trying to work out every
engineering detail on this list, but this technology of generating micro bubbles
appears that it could solve the DO needs of CT once and for all. I am
bringing this up because most of the people on the list have never heard of this
sort of technology before. I think the "how to do" is just an
engineering issue that could be solved and not end up having to be an expensive
solution. Micro bubbles of 20 microns stay in solution for a
long time and their production could very well solve all the CT
/ DO problems.
Heaters have been around in the aquarium industry for a lot of
years. I bet they have a solution that would fit. In line
heater? Maybe, maybe not... it was just a suggestion. Take a look at
the products in the aquarium industry for heating water. They have already
solved this particular problem. It's a matter of matching up products
with tank size etc. We are basically saying similar things,
Bob. There's lots of ways to solve these problems and get the costs down
so a lot of people can buy your product as a result.
Elaine said a while back that a couple of people have
identified water pumps that will work with compost tea. It appears that
they do not want to share that info on this list. Why not? I think
the reasons are called "fear" and "money".
--Thomas Giannou
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