[Digestion] Fwd: providing oxygen to methanogens

[Jean-luc Sallustro]

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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