<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=iso-8859-1"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
@font-face
{font-family:Ubuntu;
panose-1:0 0 0 0 0 0 0 0 0 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";
color:black;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
pre
{mso-style-priority:99;
mso-style-link:"HTML Preformatted Char";
margin:0cm;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";
color:black;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0cm;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";
color:black;}
span.HTMLPreformattedChar
{mso-style-name:"HTML Preformatted Char";
mso-style-priority:99;
mso-style-link:"HTML Preformatted";
font-family:Consolas;
color:black;}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";
color:black;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dear Jean-Luc<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>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? <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Regards<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Stephen<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> Digestion [mailto:digestion-bounces@lists.bioenergylists.org] <b>On Behalf Of </b>Jean-luc Sallustro<br><b>Sent:</b> 24 September 2014 18:59<br><b>To:</b> digestion@lists.bioenergylists.org<br><b>Subject:</b> Re: [Digestion] Fwd: providing oxygen to methanogens<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span style='font-family:"Ubuntu","serif"'>Dear Stephen,<br><br>What about enzimes and co-enzimes stimulation with available chemical oxygen ?</span><br>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<br><br>Regards<br><br><o:p></o:p></p><pre>Jean-Luc Sallustro, Managing Partner<o:p></o:p></pre><pre>e.venture Group<o:p></o:p></pre><pre>Bénarès, Rivière des Anguilles<o:p></o:p></pre><pre>Ile Maurice<o:p></o:p></pre><pre>Tel (230) 54 44 40 00<o:p></o:p></pre><pre>LD (230) 54 44 40 01 Mob (230) 57 29 16 26 Fax (230) 626 23 54<o:p></o:p></pre><p class=MsoNormal>Le 24/09/2014 15:52, Stephen Etheridge a écrit :<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><pre><o:p> </o:p></pre><pre>Dear Paul<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>It was a UK based research project and everything was measured to the nth<o:p></o:p></pre><pre>degree including gas composition (sure that does not make it fool proof).<o:p></o:p></pre><pre>The only reason we resorted to a literature search was this it was otherwise<o:p></o:p></pre><pre>unexplainable. The overall mass balance was the same against the control, it<o:p></o:p></pre><pre>was just that the rate of biogas conversion was greater. Stimulation was the<o:p></o:p></pre><pre>only explanation we could envisage, which seemed counterintuitive at the<o:p></o:p></pre><pre>time, but it was interesting to see that others had reported similar<o:p></o:p></pre><pre>effects.<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Regards<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Stephen Etheridge<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>-----Original Message-----<o:p></o:p></pre><pre>From: Digestion [<a href="mailto:digestion-bounces@lists.bioenergylists.org">mailto:digestion-bounces@lists.bioenergylists.org</a>] On<o:p></o:p></pre><pre>Behalf Of Paul Harris<o:p></o:p></pre><pre>Sent: 24 September 2014 18:45<o:p></o:p></pre><pre>To: <a href="mailto:digestion@lists.bioenergylists.org">digestion@lists.bioenergylists.org</a><o:p></o:p></pre><pre>Subject: Re: [Digestion] Fwd: providing oxygen to methanogens<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Maybe the increased Gas was Carbon Dioxide - did you measure gas quality?<o:p></o:p></pre><pre>There are a number of things where a small amount is good but too much is<o:p></o:p></pre><pre>bad.<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>HOOROO<o:p></o:p></pre><pre>Mr Paul Harris<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>On 24/09/2014 7:57 PM, Dr Stephen P Etheridge wrote:<o:p></o:p></pre><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><pre>Dear List<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Many years ago we found some unexplained stimulation of biogas <o:p></o:p></pre><pre>production when oxygen had accidentally been introduced into an <o:p></o:p></pre><pre>anaerobic system. This was as air, and not oxygen in chemical form. <o:p></o:p></pre><pre>While this should have traditionally been inhibitory to the <o:p></o:p></pre><pre>methanogens, for some reason, in the specific circumstances prevailing <o:p></o:p></pre><pre>at the time it was not. At the time we explored this in the literature <o:p></o:p></pre><pre>and found a paper by Pirt and Lee which indicated recorded stimulation <o:p></o:p></pre><pre>due to oxygen introduction. If I can track it down I will forward it.<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Regards<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Stephen Etheridge<o:p></o:p></pre><pre>CEO Biotrix Asia<o:p></o:p></pre></blockquote><pre><o:p> </o:p></pre><pre>_______________________________________________<o:p></o:p></pre><pre>Digestion mailing list<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>to Send a Message to the list, use the email address<o:p></o:p></pre><pre><a href="mailto:Digestion@bioenergylists.org">Digestion@bioenergylists.org</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre>to UNSUBSCRIBE or Change your List Settings use the web page<o:p></o:p></pre><pre><a href="http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergyli">http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergyli</a><o:p></o:p></pre><pre>sts.org<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>for more information about digestion, see Beginner's Guide to Biogas<o:p></o:p></pre><pre><a href="http://www.adelaide.edu.au/biogas/">http://www.adelaide.edu.au/biogas/</a><o:p></o:p></pre><pre>and the Biogas Wiki <a href="http://biogas.wikispaces.com/">http://biogas.wikispaces.com/</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre><o:p> </o:p></pre><pre>_______________________________________________<o:p></o:p></pre><pre>Digestion mailing list<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>to Send a Message to the list, use the email address<o:p></o:p></pre><pre><a href="mailto:Digestion@bioenergylists.org">Digestion@bioenergylists.org</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre>to UNSUBSCRIBE or Change your List Settings use the web page<o:p></o:p></pre><pre><a href="http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org">http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre>for more information about digestion, see<o:p></o:p></pre><pre>Beginner's Guide to Biogas<o:p></o:p></pre><pre><a href="http://www.adelaide.edu.au/biogas/">http://www.adelaide.edu.au/biogas/</a><o:p></o:p></pre><pre>and the Biogas Wiki <a href="http://biogas.wikispaces.com/">http://biogas.wikispaces.com/</a><o:p></o:p></pre><pre><o:p> </o:p></pre></blockquote><p class=MsoNormal><o:p> </o:p></p></div></body></html>