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<div class="moz-cite-prefix"><font face="Ubuntu">Hi All;<br>
<br>
To add to this very factual and simple advise I would like to
stress on the possibility for co-digestion of fresh dung with
waste made of vegetable grease or another similar highly
digestible compound. This can greatly help dimensioning the
projected AD plant in order to reach a good economic feasibility
range. In a lot of cases, fresh dung will behave as a nearly
"neutral" input with few available digestible carbon which will
compensate the risk of ammonium overloading, this can be
observed when processing ruminants slaughterhouse waste
digestion with dung and bowel content. An additional hypothesis
is that fiber contents of dung could help fixing bacterial
strays in AD reactor.<br>
Cheers<br>
</font>
<pre class="moz-signature" cols="72">Jean-Luc Sallustro, Managing Partner
e.venture Group
Bénarès, Rivière des Anguilles
Ile Maurice
Tel (230) 54 44 40 00
LD (230) 54 44 40 01 Mob (230) 57 29 16 26 Fax (230) 626 23 54</pre>
Le 05/09/2014 11:03, Paul Harris a écrit :<br>
</div>
<blockquote cite="mid:54096032.8020900@aapt.net.au" type="cite">
<br>
G'day Luckner,
<br>
<br>
The benefits of anaerobic digestion of cattle dung, which in some
cases may outweigh the low calorific value, are the convenience of
a clean gaseous fuel compared to drying and burning dung (you do
also get this by digesting leaves, of course, but you still have
to deal with the dung somehow), and the production of good
fertiliser that can go straight onto plants (unlike raw dung).
Look at your whole situation before deciding what to do.
<br>
<br>
Happy Digesting,
<br>
<br>
HOOROO
<br>
Mr Paul Harris
<br>
<br>
On 5/09/2014 10:22 AM, Anand Karve wrote:
<br>
<blockquote type="cite">Dear Luckner,
<br>
if cattle dung is dried and burned, you release about 4000
kcal/kg
<br>
energy. The same quantity of dung, if subjected to anaerobic
<br>
digestion, would yield only about 200 kcal energy in the form of
<br>
methane. Please note that dung is not a good substrate for
producing
<br>
methane. I tell you why. The anaerobic organisms produce carbon
<br>
dioxide, which means that even if there is no molecular oxygen
in
<br>
their environment, they are taking their oxygen from some
source. This
<br>
source is the material on which they feed. The consortium of
biogas
<br>
producing organisms convert nitrate into ammonia, sulphate into
<br>
hydrogen sulphide and carbohydrades into a hydrocarbon called
methane,
<br>
and they utilize the oxygen released in this process for their
own
<br>
metabolism. Since dung is already the end product of an
anaerobic
<br>
process, there is hardly any oxygen left in it for the biogas
<br>
micro-organisms to use. On the other hand, when you burn dung,
the
<br>
reduced compounds in the dung get oxidised, using atmospheric
oxxygen
<br>
to release a lot of energy. So please don't cheat your clients
by
<br>
giving them an outdated and unscientific technology. Make
biogas from
<br>
green leaves and not from dung.
<br>
Yours
<br>
A.D.Karve
<br>
<br>
On Thu, Sep 4, 2014 at 9:58 AM, Luckner Saint-Dic
<br>
<a class="moz-txt-link-rfc2396E" href="mailto:luckner.saint-Dic@a3.epfl.ch"><luckner.saint-Dic@a3.epfl.ch></a> wrote:
<br>
<blockquote type="cite">Dear friends from Anaerobic Digestion,
<br>
<br>
Happy to connect with you! You have really interesting
postings, everything
<br>
it's needed for me to learn. You are doing such a great work.
It's
<br>
absolutely wonderful how many people can benefit from your
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<br>
sure you already heard that from dozen sources :) .. But this
is the truth:
<br>
D Thank you for this amazing work!
<br>
<br>
I would like to take this opportunity to introduce my project.
We will
<br>
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support for our
<br>
biogas project in Haiti.
<br>
<br>
Please do check the story behind this and let me know what you
think. Should
<br>
you be interested to share this new content with others,
please feel free J
<br>
<br>
I am also looking for strong and strategic media partners
related with my
<br>
project.
<br>
<br>
Please do check a draft preview on the project here:
<br>
<a class="moz-txt-link-freetext" href="https://www.indiegogo.com/project/preview/46b4fdd0">https://www.indiegogo.com/project/preview/46b4fdd0</a> and let me
know what do
<br>
you think.
<br>
<br>
Here is my proposal. During this campaign, I would like to be
shortly
<br>
mentioned on your Social Media Accounts. In exchange of this
kind
<br>
partnership I can offer:
<br>
<br>
· your logo on my fundraising page and mentioned as special
partner in this
<br>
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reach at least
<br>
some thousands of people, the project will can go worldwide in
just a few
<br>
days. Hence, you will will gain tremendous visibility in
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<br>
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year.
<br>
<br>
· Strong brand awareness in Switzerland, Europe, Haiti.
<br>
<br>
I hope to serve you the best I can during this.
<br>
<br>
Should you be interested in this cooperation or have any
questions in this
<br>
regard, please feel free send me an email.
<br>
<br>
Thank you very much, and I hope to receive your favorably
response soon.
<br>
<br>
All the best,
<br>
<br>
Luckner ST-DIC
<br>
<br>
E-Mail: <a class="moz-txt-link-abbreviated" href="mailto:luckner.saint-dic@alumni.epfl.ch">luckner.saint-dic@alumni.epfl.ch</a>
<br>
Mobile : +41 79 600 8732
<br>
<br>
<br>
<br>
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<br>
<br>
for more information about digestion, see
<br>
Beginner's Guide to Biogas
<br>
<a class="moz-txt-link-freetext" href="http://www.adelaide.edu.au/biogas/">http://www.adelaide.edu.au/biogas/</a>
<br>
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<br>
<br>
<br>
</blockquote>
<br>
<br>
</blockquote>
<br>
<br>
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<br>
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<br>
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<br>
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<br>
<br>
for more information about digestion, see
<br>
Beginner's Guide to Biogas
<br>
<a class="moz-txt-link-freetext" href="http://www.adelaide.edu.au/biogas/">http://www.adelaide.edu.au/biogas/</a>
<br>
and the Biogas Wiki <a class="moz-txt-link-freetext" href="http://biogas.wikispaces.com/">http://biogas.wikispaces.com/</a>
<br>
<br>
</blockquote>
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