<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=us-ascii">
<meta name=Generator content="Microsoft Word 12 (filtered medium)">
<style>
<!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@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;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
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;}
code
{mso-style-priority:99;
font-family:"Courier New";}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page Section1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.Section1
{page:Section1;}
-->
</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 lang=EN-ZA link=blue vlink=purple>
<div class=Section1>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi folks,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I think the thing to bear in mind with these pasture based dairy
systems that are typical in South Africa, the percentage capture of manure is only
at milking times which is less than 20% of the day, including capture from waiting
pen the usual practice of having a small feed pad for after milking in the
morning.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Mark<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'><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"'>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>Douglas
Renk<br>
<b>Sent:</b> 11 January 2012 01:58 AM<br>
<b>To:</b> For Discussion of Anaerobic Digestion<br>
<b>Subject:</b> Re: [Digestion] 5000 dairy cow AD system<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'>Hello AD
listers,<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'>Viessmann
Biogas and Schmack are rolling out their containerized 'plug and play' modular
digester this year. It is now in final testing and orders are being placed:<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'><a
href="http://www.biofermenergy.com/us/category/news/schmack-biogas-and-leading-german-agricultural-research-and-training-center-start-cooperation-on-compact-biogas-plants/">http://www.biofermenergy.com/us/category/news/schmack-biogas-and-leading-german-agricultural-research-and-training-center-start-cooperation-on-compact-biogas-plants/</a><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'>I'm not
certain what Mr Gould may consider affordable for a 100 cow dairy, but this
unit is robust, automated, and includes all safety and process controls of
a full scale plant.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'>Regards,<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'>Doug Renk<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'> <o:p></o:p></span></p>
</div>
<div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt;background:white'><b><span
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>From:</span></b><span
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>
Alexander Eaton <alex@sistemabiobolsa.com><br>
<b>To:</b> For Discussion of Anaerobic Digestion
<digestion@lists.bioenergylists.org> <br>
<b>Sent:</b> Tuesday, January 10, 2012 3:30 PM<br>
<b>Subject:</b> Re: [Digestion] 5000 dairy cow AD system</span><span
style='color:black'><o:p></o:p></span></p>
<div id=yiv880048428>
<p class=MsoNormal style='background:white'><span style='color:black'><a
href="http://www.sistemabiobolsa.com/" target="_blank">www.sistemabiobolsa.com</a>
<o:p></o:p></span></p>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'>Providing
solutions for farms of 100 head (dairy) and 1000 head (swine). Currently
in Latin America, but available for export to US. <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'>Best, <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span
style='color:black'>A<o:p></o:p></span></p>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'>On Tue,
Jan 10, 2012 at 1:21 PM, <<a href="mailto:jonathan@bmpconsultants.com"
target="_blank">jonathan@bmpconsultants.com</a>> wrote:<o:p></o:p></span></p>
<p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span
style='color:black'>The issue here is that your looking for a commercially
available system. Smaller systems are not commercially manufactured due
to business models proving the larger capital returns from the larger systems.
Their are many individuals that are "the garage
inventors" that have successfully put together these smaller systems.
Generally these systems have been created using re-purposed material
which has put the capital investment cost down to near to nothing.
My suggestion would be to get a small team of
these ingenious individuals together and create your own solution.
Once proven, simply market your solution as it appears to be an available
niche market. <o:p></o:p></span></p>
<div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'>On Tue,
Jan 10, 2012 at 11:46 AM, David <<a href="mailto:david@h4c.org"
target="_blank">david@h4c.org</a>> wrote:<o:p></o:p></span></p>
</div>
<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;
margin-left:4.8pt;margin-right:0cm'>
<div>
<div>
<div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'><br>
<br>
On 1/9/2012 8:34 PM, Gould, Charles wrote: <o:p></o:p></span></p>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'>Mr.
Harris,<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'>I like
your suggestion of smaller digesters. The problem is I have not been able to
find a digester design robust enough yet cheap enough for a 100 cow dairy. Do
you know where such a design exists? I have just about given up the notion that
such a thing exists.<o:p></o:p></span></p>
</div>
<p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p>
</div>
<p class=MsoNormal style='background:white'><span style='color:black'>This
highlights a difficulty which may be partially fundamental (and to that degree
absolute) but which seems largely conceptual, which is that because situations
differ so much, and the need sufficiently moderate that there are few if any
standard "replicable" designs for digesters, of the sort that would
be used for, say, a large block of tract houses, where 1,000 houses might share
four or five basic floor plans. And no doubt specifics in this area vary
country-to-country...<br>
<br>
AgSTAR, of the US EPA, which could be said to be the primary government-based
promoter of biogas in the US, is aimed strictly at manure-using digesters for
farms with 500+ animals. For example, although it could hardly be said to be a
digester at a modest scale (cost: $US10M+), the AgSTAR site deliberately
(according to my conversation with a staffer) does not mention the Stahlbush
Island Farms digester in Corvallis, OR, because it is fed plant matter
exclusively-- therefore it is not a manure-based digester.<br>
<br>
It becomes a kind of self-fulfilling prophecy, because the system (in its
academic support, among its industrial implementers and so on), becomes adapted
to larger digesters, and therefore has that much more difficulty accommodating
a different scale of thinking. But as well, it seems that the variability of
energy prices in the US, where feed-in tariffs appear to be a political
impossibility, has prevented the establishment of an industry that might work
its way down to "smaller" digesters, after the larger digesters on
the megafarms have been built, similar to what seems to be happening in
Germany.<br>
<br>
I think there may well be a number of lower-cost building and process control
technologies, perhaps along with energy crop co-digestion strategies, which
could be put together in the proper circumstances to reduce the cost of
digesters of a size below the AgSTAR limit in the US; but it would require a
funder with vision to realize such an outcome.</span><span style='color:#888888'><br>
<br>
d.<o:p></o:p></span></p>
<div>
<p class=MsoNormal style='background:white'><span style='color:#888888'>-- <o:p></o:p></span></p>
<div>
<p class=MsoNormal style='background:white'><span style='font-size:13.0pt;
color:#888888'>David William House</span><span style='color:#888888'><o:p></o:p></span></p>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span
style='font-size:9.5pt;color:#888888'>"The Complete Biogas Handbook" </span><code><span
style='font-size:10.0pt;color:#888888'><a href="http://www.completebiogas.com/"
target="_blank">www.completebiogas.com</a></span></code><span style='font-size:
9.5pt;color:#888888'><br>
<i>Vahid Biogas</i>, an alternative energy consultancy </span><code><span
style='font-size:10.0pt;color:#888888'><a href="http://www.vahidbiogas.com/"
target="_blank">www.vahidbiogas.com</a></span></code><span style='font-size:
9.5pt;color:#888888'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='font-size:10.0pt;
font-family:"Courier New";color:#888888'>"Make no search for water.
But find thirst,<br>
And water from the very ground will burst." <o:p></o:p></span></p>
<div>
<p class=MsoNormal style='background:white'><span style='font-size:8.0pt;
font-family:"Courier New";color:#888888'>(Rumi, a Persian mystic poet, quoted
in <i>Delight of Hearts</i>, p. 77) <br>
<br>
http://bahai.us/<o:p></o:p></span></p>
</div>
</div>
</div>
</div>
</div>
<p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p>
</div>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span
style='color:black'>_______________________________________________<br>
Digestion mailing list<br>
<br>
to Send a Message to the list, use the email address<br>
<a href="mailto:Digestion@bioenergylists.org" target="_blank">Digestion@bioenergylists.org</a><br>
<br>
to UNSUBSCRIBE or Change your List Settings use the web page<br>
http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org<br>
<br>
for more information about digestion, see<br>
Beginner's Guide to Biogas<br>
<a href="http://www.adelaide.edu.au/biogas/" target="_blank">http://www.adelaide.edu.au/biogas/</a><br>
and the Biogas Wiki <a href="http://biogas.wikispaces.com/" target="_blank">http://biogas.wikispaces.com/</a><br>
<br>
<o:p></o:p></span></p>
</div>
</blockquote>
</div>
<p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span
style='color:black'><br>
<br>
_______________________________________________<br>
Digestion mailing list<br>
<br>
to Send a Message to the list, use the email address<br>
<a href="mailto:Digestion@bioenergylists.org" target="_blank">Digestion@bioenergylists.org</a><br>
<br>
to UNSUBSCRIBE or Change your List Settings use the web page<br>
<a
href="http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org"
target="_blank">http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org</a><br>
<br>
for more information about digestion, see<br>
Beginner's Guide to Biogas<br>
<a href="http://www.adelaide.edu.au/biogas/" target="_blank">http://www.adelaide.edu.au/biogas/</a><br>
and the Biogas Wiki <a href="http://biogas.wikispaces.com/" target="_blank">http://biogas.wikispaces.com/</a><br>
<br>
<o:p></o:p></span></p>
</div>
<p class=MsoNormal style='background:white'><span style='color:black'><br>
<br clear=all>
<o:p></o:p></span></p>
<div>
<p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p>
</div>
<p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span
style='color:black'>-- <br>
Alexander Eaton<br>
Sistema Biobolsa<br>
IRRI-Mexico<br>
RedBioLAC<br>
<br>
Mex cel: (55) 11522786<br>
US cel: 970 275 4505<br>
<br>
<a href="mailto:alex@irrimexico.org" target="_blank">alex@irrimexico.org</a><br>
<a href="mailto:alex@sistemabiobolsa.com" target="_blank">alex@sistemabiobolsa.com</a><br>
<br>
<a href="http://sistemabiobolsa.com/" target="_blank">sistemabiobolsa.com</a><br>
<a href="http://www.irrimexico.org/" target="_blank">www.irrimexico.org</a><br>
<a href="http://www.redbiolac.org/" target="_blank">www.redbiolac.org</a><o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span
style='color:black'><br>
_______________________________________________<br>
Digestion mailing list<br>
<br>
to Send a Message to the list, use the email address<br>
<a href="mailto:Digestion@bioenergylists.org">Digestion@bioenergylists.org</a><br>
<br>
to UNSUBSCRIBE or Change your List Settings use the web page<br>
<a
href="http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org"
target="_blank">http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org</a><br>
<br>
for more information about digestion, see<br>
Beginner's Guide to Biogas<br>
<a href="http://www.adelaide.edu.au/biogas/" target="_blank">http://www.adelaide.edu.au/biogas/</a><br>
and the Biogas Wiki <a href="http://biogas.wikispaces.com/" target="_blank">http://biogas.wikispaces.com/</a><br>
<br>
<br>
<o:p></o:p></span></p>
</div>
</div>
</div>
</div>
</body>
<br />--
<br />This message has been scanned for viruses and
<br />dangerous content by <b>Pinpoint Securemail</b>,
<br />and is believed to be clean.
</html>