[Digestion] Sources of methanogens?

[Paul Harris]

G'day Davide,

Yes, I think any cold source would be a benefit, even Arctic Tundra (now
THAT'S a good project to get funding for!), but keep in mind I'm just an
engineer!

All the best,
HOOROO

davide wrote:
> 
> Hi All and Hi Delicia,
> 
> this question about the source of methanogens has always been a puzzle for me as well!
> 
> I suggest using the sediments you can find on the floor of freshwater lakes or lagunas. Actually these are mostly putrefied vegetable matter so I think it can work. Once I used them to inoculate one digester I made, but which was later fed with manure, so it's not the same case.
> When I entered the lake to pick up the sediments, it was funny to feel the bubbles (biogas) rising from the bottom, like a jacuzzi!
> 
> I'd like to ask something more to complement the discussion or that could start a new thread: are the methanogens from  lake sediments better for psychrophilic digestion? Could it be a good strategy to use just sediments from a lake (5º-10º C) to inoculate a manure digester operating at 18º C without using other sources like cattle manure or rumen?
> 
> best wishes, davide
> 
> Paul Harris <paul.harris at adelaide.edu.au> ha scritto: G'day All,
> 
> I have a query from a Malaysian student wanting to show for a Project
> that vegetable waste can make biogas, but not using manure as a
> bacterial source (and I get a number of queries about digesting
> vegetable waste!).
> 
> Any suggestions of how to introduce the correct bacteria (preferably
> using readily available materials and simple techniques, but anything
> may help)?
> 
> Many Thanks,
> Happy digesting,
> HOOROO
> --
> Mr. Paul Harris
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-- 
Mr. Paul Harris
Room G8, Leske Building
Faculty of Sciences,
The  University of Adelaide, Roseworthy Campus, AUSTRALIA 5371
Ph    : +61 8 8303 7880
Fax   : +61 8 8303 7979
mailto:paul.harris at adelaide.edu.au
I now use "MailGuard" - if you do not get a reply please make contact
again (by fax?)
http://www.adelaide.edu.au/directory/paul.harris
Member IOBB http://www.iobbnet.org/drupal/

CRICOS Provider Number 00123M
----------------------------------------------------------- 
This email message is intended only for the addressee(s) 
and contains information that may be confidential and/or 
copyright.  If you are not the intended recipient please 
notify the sender by reply email and immediately delete 
this email. Use, disclosure or reproduction of this email 
by anyone other than the intended recipient(s) is strictly 
prohibited. No representation is made that this email or 
any attachments are free of viruses. Virus scanning is 
recommended and is the responsibility of the recipient.