<div>Dear Kevin,</div>
<div>the slurry should be mostly lignin. The mucus in the dung is sticky. It helps in holding the dung cake together, even when it is shaped by hand. In the process of anaerobic digestion the mucus gets digested. I have not heard of anybody using slurry from a biogas digester as domestic fuel, most probably because that household would be using biogas as cooking fuel. Frankly, I do not know if the slurry would be briquettable or not</div>
<div>Yours</div>
<div>A.D.Karve<br><br></div>
<div class="gmail_quote">On Wed, Dec 8, 2010 at 2:24 AM, Kevin <span dir="ltr"><<a href="mailto:kchisholm@ca.inter.net">kchisholm@ca.inter.net</a>></span> wrote:<br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">
<div bgcolor="#ffffff">
<div><font size="2" face="Arial">Dear AD</font></div>
<blockquote style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px" dir="ltr">
<div style="FONT: 10pt arial">----- Original Message ----- </div>
<div style="FONT: 10pt arial; BACKGROUND: #e4e4e4"><b>From:</b> <a title="adkarve@gmail.com" href="mailto:adkarve@gmail.com" target="_blank">Anand Karve</a> </div>
<div style="FONT: 10pt arial"><b>To:</b> <a title="stoves@lists.bioenergylists.org" href="mailto:stoves@lists.bioenergylists.org" target="_blank">Discussion of biomass cooking stoves</a> </div>
<div style="FONT: 10pt arial"><b>Sent:</b> Tuesday, December 07, 2010 1:02 PM</div>
<div style="FONT: 10pt arial"><b>Subject:</b> Re: [Stoves] Stoves Digest, Vol 4, Issue 13</div>
<div><br></div>
<div>Dear Rajan,</div>
<div>Transporting the wet slurry from a dung based biogas plant to the field is always a bother. One can allow the slurry to be filtered through a bed of straw. The water in the slurry drains out, leaving the relatively dryer slurry on the surface of the bed of straw. The slurry, now devoid of most of its water is easier to handle and to transport</div>
<div> </div>
<div><font size="2" face="Arial"># OK!! Do you think it might be possible to briquette the drained anaerobic residue ands a fuel or pellet? Does such residue have greater as an agricultural supplement than as a potential fuel? </font></div>
<font size="2" face="Arial"></font></blockquote>
<blockquote style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px" dir="ltr">
<div><font size="2" face="Arial">Best wishes,</font></div>
<div><font size="2" face="Arial"></font> </div>
<div><font size="2" face="Arial">Kevin Chisholm</font></div>
<div><br>Yours</div>
<div>A.D.Karve<br></div>
<div class="gmail_quote">On Tue, Dec 7, 2010 at 11:58 PM, Kevin <span dir="ltr"><<a href="mailto:kchisholm@ca.inter.net" target="_blank">kchisholm@ca.inter.net</a>></span> wrote:<br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">Dear Rajan<br>----- Original Message ----- From: <<a href="mailto:rajan_jiby@dataone.in" target="_blank">rajan_jiby@dataone.in</a>><br>
To: "Kevin" <<a href="mailto:kchisholm@ca.inter.net" target="_blank">kchisholm@ca.inter.net</a>>; "Discussion of biomass cooking stoves" <>>><br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote"><br>Dear Kevin,<br><br>Well, we also use biogas plants where animal dung is a major feedstock.<br><br>Here the energy part comes out as methane ( which is used as fuel ) and the slurry from the plant contains all the nutrients ( without any loss ).<br>
</blockquote><br>I have no experience with biogas plants run on animal manure. Is the slurry from a biogas plant filterable? If so, would it potentially make a fuel equivalent or superior to dung that was burned directly, with no washing?<br>
<br>As I understand it, Richard Stanley uses a retting process on biomass, to develop binding characteristics for his holey briquette feed. Would the drained solids from a biodigester perhaps have better "binder characteristics than freshly washed dung? Perhaps Righard has already explored this avenue?<br>
<br>Best wishes,<br><br>Kevin<br><br><br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote"><br>Best Regards,<br><br><br>Rajan<br><br><br><br><br><br>-----<br>No virus found in this message.<br>Checked by AVG - <a href="http://www.avg.com/" target="_blank">www.avg.com</a><br>
Version: 10.0.1170 / Virus Database: 426/3302 - Release Date: 12/07/10<br><br></blockquote><br><br>_______________________________________________<br>Stoves mailing list<br><br>to Send a Message to the list, use the email address<br>
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<br>-- <br>***<br>Dr. A.D. Karve<br>President, Appropriate Rural Technology Institute (ARTI)<br><br>*Please change my email address in your records to: <a href="mailto:adkarve@gmail.com" target="_blank">adkarve@gmail.com</a> *<br>
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<p align="left" color="#000000">No virus found in this message.<br>Checked by AVG - <a href="http://www.avg.com/" target="_blank">www.avg.com</a><br>Version: 10.0.1170 / Virus Database: 426/3302 - Release Date: 12/07/10</p>
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<br></blockquote></div><br><br clear="all"><br>-- <br>***<br>Dr. A.D. Karve<br>President, Appropriate Rural Technology Institute (ARTI)<br><br>*Please change my email address in your records to: <a href="mailto:adkarve@gmail.com">adkarve@gmail.com</a> *<br>
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