[Digestion] Transylvanian cow-plop processor

[F. Marc de Piolenc]

Dear Chris,

I suspect you have a good reason for using the efficient, but 
relatively expensive Indian-design concrete digester, but if not I 
recommend that you consider the polyethylene bag digester for the big 
200-cow operation. There should be plenty of information on-line; if 
not, I will happily email you what I have. Admittedly, it will 
require some adaptation for use in a four-seasons climate (it was 
developed in Fiji for use in the tropics), but I think that is doable 
- by lining the trench with straw, for example, adding a straw/poly 
cover in winter, and using warm or hot water to dilute the...errr... 
feed material.

Best regards (or should I say "good evening, and velcom?"),
Marc de Piolenc
Iligan City, Philippines


From: Chris Worman <chris_worman at hotmail.com>
Subject: [Digestion] medium sized digester
To: <digestion at listserv.repp.org>
Message-ID: <BLU111-W48141EFACF409F9D079BF6FB4C0 at phx.gbl>
Content-Type: text/plain; charset="Windows-1252"


Greetings from transylvania.
I am a peace corps volunteer here working in the environmental 
sector.  Recently I have built a gobar style plant and was approached 
by a farmer who would like to put in something at his place.  for 
better or worse, he has 200 cows,  The gobar style plants can handle 
up to 20 and we thought about linking 10 of them together but this 
does seem to have a bit of the preposterous to it.  So, I turn to the 
collective wisdom of this group seeking other advice.  We need it to 
remain low cost and another consideration is temperature (winters 
here get down in the -5 C range on a regular basis).  Any thoughts 
would be greatly appreciated.  Cheers,
Chris

Christopher Worman
Environmental Organization Development Advisor
Peace Corps Romania
chris_worman at hotmail.com
chris.worman at green-agora.ro
www.green-agora.ro


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