[Digestion] Fwd: providing oxygen to methanogens

[Stephen Etheridge]

Dear Jean-Luc

 

Yes I agree, it is certainly possible. It is very difficult to know what is
really going on as there are so many dynamic parts to the puzzle. Just when
you think you’ve got a handle on it, something else comes into play. Will we
ever be able to more than marvel at the complexity and simplicity of the
process? 

 

Regards

 

Stephen

 

From: Digestion [mailto:digestion-bounces at lists.bioenergylists.org] On
Behalf Of Jean-luc Sallustro
Sent: 24 September 2014 18:59
To: digestion at lists.bioenergylists.org
Subject: Re: [Digestion] Fwd: providing oxygen to methanogens

 

Dear Stephen,

What about enzimes and co-enzimes stimulation with available chemical oxygen
?
There are epxpemriment I could probably trace back regarding co_digestion of
waste sirup made of tamarin fruit and vinasse which had stressed on the
stimulation of enzime

Regards



Jean-Luc Sallustro, Managing Partner
e.venture Group
Bénarès, Rivière des Anguilles
Ile Maurice
Tel (230) 54 44 40 00
LD (230) 54 44 40 01 Mob (230) 57 29 16 26 Fax (230) 626 23 54

Le 24/09/2014 15:52, Stephen Etheridge a écrit :

 
Dear Paul
 
It was a UK based research project and everything was measured to the nth
degree including gas composition (sure that does not make it fool proof).
The only reason we resorted to a literature search was this it was otherwise
unexplainable. The overall mass balance was the same against the control, it
was just that the rate of biogas conversion was greater. Stimulation was the
only explanation we could envisage, which seemed counterintuitive at the
time, but it was interesting to see that others had reported similar
effects.
 
Regards
 
Stephen Etheridge
 
-----Original Message-----
From: Digestion [mailto:digestion-bounces at lists.bioenergylists.org] On
Behalf Of Paul Harris
Sent: 24 September 2014 18:45
To: digestion at lists.bioenergylists.org
Subject: Re: [Digestion] Fwd: providing oxygen to methanogens
 
Maybe the increased Gas was Carbon Dioxide - did you measure gas quality?
There are a number of things where a small amount is good but too much is
bad.
 
HOOROO
Mr Paul Harris
 
On 24/09/2014 7:57 PM, Dr Stephen P Etheridge wrote:

Dear List
 
Many years ago we found some unexplained stimulation of biogas 
production when oxygen had accidentally been introduced into an 
anaerobic system. This was as air, and not oxygen in chemical form. 
While this should have traditionally been inhibitory to the 
methanogens, for some reason, in the specific circumstances prevailing 
at the time it was not. At the time we explored this in the literature 
and found a paper by Pirt and Lee which indicated recorded stimulation 
due to oxygen introduction. If I can track it down I will forward it.
 
Regards
 
Stephen Etheridge
CEO Biotrix Asia

 
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for more information about digestion, see Beginner's Guide to Biogas
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and the Biogas Wiki http://biogas.wikispaces.com/
 
 
_______________________________________________
Digestion mailing list
 
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Digestion at bioenergylists.org
 
to UNSUBSCRIBE or Change your List Settings use the web page
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for more information about digestion, see
Beginner's Guide to Biogas
http://www.adelaide.edu.au/biogas/
and the Biogas Wiki http://biogas.wikispaces.com/
 

 

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