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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>G’day All,<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'>For the “non digesters” in particular some anaerobic digesters
are packed with plastic rings/balls or other media to provide a surface for
bacteria, so what Dr Karve has possibly done (I am guessing here) is provided “homes”
for a lot more bacteria so they are not washed out. This is good for solutions
but not so good if there are solids in the waste stream.<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'>The other possibility is that the extra carbon has restored the
C:N ratio.<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'>Could you give more details of what you did Dr Karve, if it is
possible (I understand you may have some commercial interests to protect)?<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'>Happy digesting,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>HOOROO<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>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas;
color:#1F497D'>Mr. Paul Harris, Room 202 Charles Hawker Building, Faculty of
Sciences, The University of Adelaide, <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas;
color:#1F497D'>Waite Campus, PMB 1, Glen Osmond SA 5064 Ph : +61 8
8303 7880 Fax :
+61 8 8303 4386<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas;
color:#1F497D'>Roseworthy Campus, Ph : +61 8 8303 7929<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas;
color:#1F497D'><a href="mailto:paul.harris@adelaide.edu.au">mailto:paul.harris@adelaide.edu.au</a>
<a href="http://www.adelaide.edu.au/directory/paul.harris">http://www.adelaide.edu.au/directory/paul.harris</a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas;
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas;
color:#1F497D'>CRICOS Provider Number 00123M<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas;
color:#1F497D'>This email message is intended only for the addressee(s) and
contains information that may be confidential and/or copyright. If you
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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.<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> digestion-bounces@lists.bioenergylists.org
[mailto:digestion-bounces@lists.bioenergylists.org] <b>On Behalf Of </b>rongretlarson@comcast.net<br>
<b>Sent:</b> Thursday, 6 October 2011 1:35 PM<br>
<b>To:</b> Anand Karve; gasification@lists.bioenergylists.org; Discussion of
biomass; biochar; digestion<br>
<b>Subject:</b> [Digestion] Karve connecting Biochar and Biogas<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:black'>AD
(cc four lists):<br>
<br>
I have not previously seen the connection between Biochar
and Biogas that you described (below) today on the gasification
list. In particular, you say you "..<em><span
style='font-family:"Arial","sans-serif"'> filled the digester</span></em><i><br>
with charcoal, my system accepted three times the normal daily input<br>
and produced three times as much gas.</i>" <br>
I think what you describe can be a very powerful push for both Biochar and
Biogas. Can you describe what you have learned a little more?<br>
<br>
I know too little of digesters, so this is not
clear. I think I know your kitchen-sized inverted "barrel" gas
chamber and think I understand the last part - of getting three times as much
gas in the next 24 hours or less (and 3X is a huge change!). Does
the idea of accepting three times more mean essentially the same thing? I
would think you could "jam" any amount in; what limits
acceptance?<br>
<br>
Do you agree that this is very important new
information? Do you agree this information could help speed up both
technologies? I believe there is wide agreement that Biochar benefits
from added biological material (that would not be long-lived from a
sequestration perspective). Is there any reason to think that the
traditional use of digester effluent for ag improvements will be in any way
harmed if it is continued through the addition of carbon-negative
Biochar? Should this not promote sales of your charcoal-making stoves?<br>
<br>
If I haven't asked quite the right question - please answer the right
one. And congratulations on learning and reporting this.<br>
<br>
Ron<o:p></o:p></span></p>
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