[Digestion] Biogas production

[David]

On 11/12/2012 11:44 PM, Takamoto wrote:
> Dear Biogas List,
>
> I have been testing a plastic (LLDPE) floating drum digester with 
> cow dung and found that the biogas production was lower than 
> expected... I discovered that our dung supplier had recently used 
> the antibiotic Tetracycline for a few of his cows...


      Effect of oxytetracycline on biogas production and active
      microbial populations during batch anaerobic digestion of cow manure

Abstract: "...Control serum bottles [in 120 mL serum bottles for 30 
days with a working volume of 40 mL] produced 255 ± 13 mL biogas, 
whereas 50--60 % inhibitions were obtained for the serum bottles 
operated with samples collected for the 5 days after medication."



d.
-- 
David William House
"The Complete Biogas Handbook" |www.completebiogas.com|
/Vahid Biogas/, an alternative energy consultancy |www.vahidbiogas.com

|
|
"Make no search for water.   But find thirst,
And water from the very ground will burst."
(Rumi, a Persian mystic poet, quoted in /Delight of Hearts/, p. 77)

http://bahai.us/
|
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/digestion_lists.bioenergylists.org/attachments/20121113/cff6e201/attachment.html>