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<div class="moz-text-flowed" style="font-family: -moz-fixed;
font-size: 13px;" lang="x-western">Hi Group,
<br>
Please let me know if it is considered poor form to repost
questions (apologies in advance).
<br>
We are a small community group attempting to take the initiative
to deal with issues that we feel can better be solved with
<br>
engineering and science, rather than politics and bureaucracy. But
there are many "holes" in our knowledge base. and a long path to
travel.
<br>
I would be grateful for any review of these questions we are
asking ourselves, for not only the answers, but any other
important questions with which we should be concerned.
<br>
<br>
Below is the previous posting:
<br>
Thanks,
<br>
Steven
<br>
<br>
I have seen a wide range of estimates for poultry AD ratios and
<br>
calculations.
<br>
Can someone advise me in specifics, or "rule of thumb", or just
best
<br>
guess as to the following?
<br>
Apologies in advance for the long list of questions!
<br>
<br>
Based on:
<br>
6,250 gallon (23,658 liters) 20mil Black Urethane Bladder Bag as
the
<br>
AD tank
<br>
Batch Load Poultry, with maybe 4% mix of Cow Manure, and
laboratory
<br>
Innoculum also added ....
<br>
<br>
1) What is the optimum percentage, and the maximum percentage of
solids
<br>
mixed with water I should attempt for a batch?
<br>
<br>
2) Based on whatever the above suggested percentage is for mixed
ratio,
<br>
what would a conservative expectation for gas production be for a
single
<br>
batch ?
<br>
<br>
3) Assuming that in the next subsequent batch, a portion of the
previous
<br>
batch was left in the bladder to act as the innoculum, what would
be the
<br>
minimum amount one would let remain in the bladder?
<br>
<br>
4) We are using a non-agricultural area (but open land) to launch
this
<br>
prototype. And we have in mind to load and mix at the poultry
farm, in a
<br>
tank truck the thickest mix of poultry manure with water capable
of
<br>
being pumped through a 2 inch (5 cm) diameter hose. And then add
<br>
additional water to the bladder tank, to make the mix a proper
ratio.
<br>
Any guesses out there, what a safe ratio of poultry manure to
water
<br>
would flow (with small pump used not gravity) through a 2 inch (5
cm)
<br>
diameter hose?
<br>
<br>
<br>
Based on just internet generated numbers, .... 6,250 gallons
(23,658
<br>
liters)of poultry manure with some bedding, and at 15% solids,
will
<br>
generate 935 m3/ per batch (33,000 cubic ft) and 6,039 kWh per
batch. At
<br>
14 cents ($0.14 USD) per kilowatt that would be $338 per batch.
<br>
There are several calculation resources online, but the source for
this
<br>
calculation is the Electrigaz site out of Canada
<br>
<br>
Can members comment on these ratios and calculations?
<br>
Our Foundation's focus is not so much on creating electrical
generation
<br>
profit, as to containing and isolating the waste management
process in a
<br>
way there is a residual value for the farmer. Again, our small
region
<br>
grows 600 million chickens a year, on a little under 2,000 farms.
Each
<br>
chicken produces 0.1 lbs (0.05 kg) per day. If you google earth
the U.S.
<br>
zip code 21874, and back up the zoom you will see the tremendous
amount
<br>
of water bays, estuaries, and marsh that absorb the manure runoff.
We
<br>
appreciate more than you know, any contribution of knowledge and
<br>
experience to our community based efforts!
<br>
<br>
Thanks so much,
<br>
Steven
<br>
<br>
<div class="moz-txt-sig"><span class="moz-txt-tag">-- <br>
</span>Steven Bolgiano
<br>
Executive Director
<br>
Planet Foundation Ltd.
<br>
443.235.1344
<br>
<br>
</div>
</div>
<br>
<br>
<pre class="moz-signature" cols="72">--
Steven Bolgiano
Executive Director
Planet Foundation Ltd.
443.235.1344</pre>
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