<div>Dear Mr. Afilal,</div>
<div>if you used any substance that is digested by humans,(sugar, starch, digestible protein or fat), it gets completely converted into biogas by the methanogens. 1 kg of any of these substances would yield about 1 kg biogas, containing the theoretically calculated proportion of roughly 25 to 30% methane and 70 to 75% carbon dioxide. The presence of a chain of micro-organisms, with each one producing a product that serves as food for the next one in the chain is not believable. If it were really so, one would get a much higher concentration of carbon dioxide in the resultant biogas, because the intermediate organisms produce only carbon dioxide and not methane.</div>
<div>Yours</div>
<div>A.D.Karve<br><br></div>
<div class="gmail_quote">2011/3/22 Randy Mott <span dir="ltr"><<a href="mailto:randymott@ceeres.eu">randymott@ceeres.eu</a>></span><br>
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<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Gasan,</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">You interested in teaming on some projects there? I have to check the support system, but we will be expanding in 2012. We do investment, design, build and operate. Danish technology….</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Randy Mott</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">CEERES</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Warsaw</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><b><span style="FONT-SIZE: 10pt">From:</span></b><span style="FONT-SIZE: 10pt"> <a href="mailto:digestion-bounces@lists.bioenergylists.org" target="_blank">digestion-bounces@lists.bioenergylists.org</a> [mailto:<a href="mailto:digestion-bounces@lists.bioenergylists.org" target="_blank">digestion-bounces@lists.bioenergylists.org</a>] <b>On Behalf Of </b>Gasan Osojnik<br>
<b>Sent:</b> Tuesday, March 22, 2011 7:24 AM<br><b>To:</b> <a href="mailto:digestion@lists.bioenergylists.org" target="_blank">digestion@lists.bioenergylists.org</a><br><b>Cc:</b> <a href="mailto:digestion-request@lists.bioenergylists.org" target="_blank">digestion-request@lists.bioenergylists.org</a><br>
<b>Subject:</b> [Digestion] The biology of biogas production</span></p>
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<p style="MARGIN-BOTTOM: 12pt" class="MsoNormal">Hi Mohamed,<br><br>The general (though I am sure there will be other interpretations) mechanism of biogas formation is 4-step and involves:<br>1. Hydrolysis (degradation of polymers)<br>
2. Acidogenesis (the formation of volatile fatty acids - low molecular carboxylic acids)<br>3. Acetogenesis (the formation of acetate, CO2 and H2)<br>4. Methanogenesis (from acetete -> CO2 and CH4 is formed, from CO2 and H2 -> CH4 is formed, methanogenesis from acetate and CO2+H2 has to run simultaneously for the proces to be stable) <br>
<br>The last step is the reason why there will be always some CO2 in biogas. Each of this steps is carried out by different groups of microorganisms.<br><br>So the initial biochemical sources of biogas are carbohydrates, proteins, fats etc. In the long run, any substance that can be converted intermediately either to dissolved CO2 and H2 or to acetate is appropriate for biogas production.<br>
<br>BR from Slovenia, Gasan</p></div>
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<p class="MsoNormal"><b><span style="COLOR: #990033; FONT-SIZE: 10pt">Ilja Gasan OSOJNIK ČRNIVEC, </span></b><span style="FONT-SIZE: 10pt">L05 - Laboratory for Environmental Sciences and Engineering</span> </p>
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<p class="MsoNormal"><span style="FONT-SIZE: 7.5pt">iku. Če vam sporočilo ni bilo namenjeno, ni dovoljeno razkrivanje, nadaljnje pošiljanje ali drugačna uporaba oziroma predelava posredovanih informacij. V tem primeru vas prosimo, da obvestite pošiljatelja in sporočilo izbrišete. Kemijski inštitut ne prevzema odgovornosti za napake v prenosu.</span> </p>
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<p class="MsoNormal">On 21 March 2011 20:00, <<a href="mailto:digestion-request@lists.bioenergylists.org" target="_blank">digestion-request@lists.bioenergylists.org</a>> wrote:</p>
<p class="MsoNormal">Send Digestion mailing list submissions to<br> <a href="mailto:digestion@lists.bioenergylists.org" target="_blank">digestion@lists.bioenergylists.org</a><br><br>To subscribe or unsubscribe via the World Wide Web, visit<br>
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<br>When replying, please edit your Subject line so it is more specific<br>than "Re: Contents of Digestion digest..."<br><br><br>Today's Topics:<br><br> 1. introduction (elamin afilal)<br><br><br>----------------------------------------------------------------------<br>
<br>Message: 1<br>Date: Mon, 21 Mar 2011 16:45:22 +0000 (GMT)<br>From: elamin afilal <<a href="mailto:afilalamin@yahoo.fr" target="_blank">afilalamin@yahoo.fr</a>><br>To: <a href="mailto:digestion@lists.bioenergylists.org" target="_blank">digestion@lists.bioenergylists.org</a><br>
Subject: [Digestion] introduction<br>Message-ID: <<a href="mailto:38511.70590.qm@web26307.mail.ukl.yahoo.com" target="_blank">38511.70590.qm@web26307.mail.ukl.yahoo.com</a>><br>Content-Type: text/plain; charset="iso-8859-1"<br>
<br>?Hi<br>I am interested by the anaerobic digestion, I hope?producing sufisament of<br>biogas from the organic wast in Morocco<br>But I would previously like to be able to answer many questions as: what<br>chemical constituent(component) bacteria attack in the first ? The biogas<br>
results initially from carbohydrates in the first?or all the constituents are<br>attacked at the same?time??<br><br>Thanks<br>Sory for this bad englich<br><br>?---------------------------------------------------<br>AFILAL Mohamed Elamin<br>
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<br>------------------------------<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>
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<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><br>End of Digestion Digest, Vol 7, Issue 10<br>****************************************</p></div>
<p class="MsoNormal"> </p></div></div><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>
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<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></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>
<br><br><br>