[compost_tea] Re: Flow rate for air pumps
Thanks, Elaine -
Everybody please pay attention to
ppm vs. percent when referring to
dissolved oxygen.
It is a common mistake... !!
Steve Diver
--- In compost_tea_at_yahoogroups.com, soilfoodweb@a... wrote:
> I think that Steve meant 6 ppm, which is 6 mg oxygen per liter, not
6% DO
>
> 6% dissolved oxygen would mean the brew is seriously anaerobic.
Normal
> percent oxygen is about 22% at sea level and room temperature.
>
> At about 16% oxygen, you lose the aerobes, and facultative anaerobes
win. At
> about 8% oxygen, the true anaerobes start to grow.
>
> Elaine
>
Yahoo! Groups Links
Received on Thu Feb 17 2005 - 22:14:48 EST
This archive was generated by hypermail 2.3.0
: Tue Feb 07 2012 - 14:15:47 EST