[Digestion] Digestion Digest, Vol 19, Issue 4
Jaime Marti Herrero
tallerbiogas at hotmail.com
Wed Jan 16 10:47:25 CST 2008
hi Jenny.
The familys have to ask us for a workshop, or biodigester proyect. they have to lookfor us, and not the opposite.
We have to show how the biodigester works, installating demostrative
biodigester to families who want it. They assume the risk of a new
technology. There is always
adventurous families in the communities, and through them are installed
demonstratives biodigesters Nobody better than the farmer himself to
explain to his neighbors how thee biodigester works, and the neighbors
will see the benefits and the time to operate it. By their own criteria
they will decide. in Bolivia we say 'see to believe'.
Thus, in time,
the families are the ones that demand biodigesters, and thus their
interest is insured. We teach them where to buy the material, to
install and manage, and finance 30% of the cost in materials. They put the rest.
It is very important that families pay a cost similar to the actual
cost of the biodigester for what the future sustainability. if a
biodigester is good for a family, and the family want it, they will pay
the real cost.
Never has been a project to diseminate de bicycles,
and anyone had to finance them, and as we see in communities is the
most common means of transport. Whether a technology is good, the
family will pay for acquiring it. They have their own criteria, and we
just have to show and inform how the technology works. later, they
decide.
keep in contact
jaime
> Date: Wed, 16 Jan 2008 11:10:58 -0500
> From: jennyaragundy at gmail.com
> To: digestion at listserv.repp.org
> Subject: Re: [Digestion] Digestion Digest, Vol 19, Issue 4
>
> Hello Jaime,
>
> a very interesting video and a challenging environment to build a
> biodigester. I would like to know how is the willingness of people to accept
> and operate this system and also if during the workshop they were trained to
> operate and maintain the system and how long was the workshop? I am curious
> about it since I had the experience of operating a biodigester in the
> Ecuadorian Amazon Region and we have some problems regarding these matters.
>
> Best regards and thanks for your answers...
>
> Jenny Aragundy
>
>
> 2008/1/16, digestion-request at listserv.repp.org <
> digestion-request at listserv.repp.org>:
> >
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> >
> >
> > Today's Topics:
> >
> > 1. (no subject) (Jaime Marti Herrero)
> > 2. Re: biodigester construction in Bolivia (Video) (Tom Miles)
> > 3. Re: biodigester construction in Bolivia (Video) (AJH)
> > 4. Public e-book on biogas (FAO, 1992) (Michael Madsen)
> > 5. Re: biodigester construction in Bolivia (Video)
> > (Jaime Marti Herrero)
> > 6. Re: biodigester construction in Bolivia (Video)
> > (Jaime Marti Herrero)
> > 7. Re: biodigester construction in Bolivia (Video) (David Fulford)
> > 8. Re: biodigester construction in Bolivia (Video)
> > (Jaime Marti Herrero)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Tue, 15 Jan 2008 21:34:26 -0400
> > From: Jaime Marti Herrero <tallerbiogas at hotmail.com>
> > Subject: [Digestion] (no subject)
> > To: <digestion at listserv.repp.org>, <stoves at listserv.repp.org>
> > Message-ID: <BAY116-W55129BD57E935381FEF8ADC400 at phx.gbl>
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> > Hi everybody.
> > I just have upload a video to youtube about the construction of a
> > biodigester for Altiplano region, Bolivia. This means 3500-4500 meter over
> > the sea level, and minimum temperatures of -15C?.
> > The video has been recorded during a workshop in a community. At the end
> > of the video you can see the highest biodigester(4221 meter over sea level)
> > operating.
> > The sound of the video is only music.
> > here you can see the video: http://es.youtube.com/watch?v=3Sl0XEN5Bgo
> >
> > The difference of this biodigester is the retention time, and the
> > greenhouse, made with sand walls of 40cm width. these walls keep warm the
> > biodigester because the thermal mass.
> >
> > Hope it is interesting for you.
> > Keep in contact
> > jaime
> > _________________________________________________________________
> > Invite your mail contacts to join your friends list with Windows Live
> > Spaces. It's easy!
> >
> > http://spaces.live.com/spacesapi.aspx?wx_action=create&wx_url=/friends.aspx&mkt=en-us
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Tue, 15 Jan 2008 18:19:05 -0800
> > From: "Tom Miles" <tmiles at trmiles.com>
> > Subject: Re: [Digestion] biodigester construction in Bolivia (Video)
> > To: "'Jaime Marti Herrero'" <tallerbiogas at hotmail.com>,
> > <digestion at listserv.repp.org>
> > Message-ID: <000701c857e6$2af9fce0$80edf6a0$@com>
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> > Jaime,
> >
> > Great project and great video. I copied your note to the biomass cooking
> > stoves discussion list.
> >
> > Tom Miles
> >
> >
> > > -----Original Message-----
> > > From: digestion-bounces at listserv.repp.org [mailto:digestion-
> > > bounces at listserv.repp.org] On Behalf Of Jaime Marti Herrero
> > > Sent: Monday, January 14, 2008 7:09 AM
> > > To: digestion at listserv.repp.org
> > > Subject: [Digestion] biodigester construction in Bolivia (Video)
> > >
> > > Hi everybody.
> > > I just have upload a video to youtube about the construction of a
> > > biodigester for Altiplano region, Bolivia. This means 3500-4500 meter
> > > over the sea level, and minimum temperatures of -15C?.
> > > The video has been recorded during a workshop in a community. At the
> > > end of the video you can see the highest biodigester(4221 meter over
> > > sea level) operating.
> > > The sound of the video is only music.
> > > here you can see the video: http://es.youtube.com/watch?v=3Sl0XEN5Bgo
> > >
> > > The difference of this biodigester is the retention time, and the
> > > greenhouse, made with sand walls of 40cm width. these walls keep warm
> > > the biodigester because the thermal mass.
> > >
> > > Hope it is interesting for you.
> > > Keep in contact
> > > jaime
> > >
> >
> >
> >
> >
> > ------------------------------
> >
> > Message: 3
> > Date: Wed, 16 Jan 2008 11:39:09 +0000
> > From: AJH <list at sylva.icuklive.co.uk>
> > Subject: Re: [Digestion] biodigester construction in Bolivia (Video)
> > To: <digestion at listserv.repp.org>
> > Message-ID: <96rro39oi7a9a6d14vak3is5s3mmrji5mf at 4ax.com>
> > Content-Type: text/plain; charset=ISO-8859-1
> >
> > On Mon, 14 Jan 2008 11:08:53 -0400, Jaime Marti Herrero wrote:
> >
> > >I just have upload a video to youtube about the construction of a
> > biodigester for Altiplano region, Bolivia. This means 3500-4500 meter over
> > the sea level, and minimum temperatures of -15C?.
> >
> > It looks interesting, what is the raw material?
> >
> > Also as the gas pipe leaves the digester there is what looks like a
> > broken bottle Teed off the line, what is it?
> >
> > AJH
> >
> >
> >
> >
> > ------------------------------
> >
> > Message: 4
> > Date: Wed, 16 Jan 2008 13:33:12 +0100
> > From: "Michael Madsen" <mima at bio.sdu.dk>
> > Subject: [Digestion] Public e-book on biogas (FAO, 1992)
> > To: <digestion at listserv.repp.org>
> > Message-ID:
> > <22B91ACB0964CD4ABAD04E90F1ECE892014AC086 at ADM-EXCH0A.adm.c.sdu.dk>
> > Content-Type: text/plain; charset="us-ascii"
> >
> > Hola a todos.
> >
> >
> >
> >
> >
> > I found an electronic biogas book that might have your interest. It's
> > titled "Biogas processes for sustainable development" and was written by
> > Uri Marchaim, MIGAL Galilee Technological Centre Kiryat Shmona, Israel,
> > ISBN 92-5-103126-6.
> >
> >
> >
> > It can be accessed via the following link:
> >
> > http://www.fao.org/docrep/t0541e/T0541E00.htm#Contents
> >
> >
> >
> >
> >
> > Does anybody have any knowledge of similar comprehensive resources
> > available on the Internet (besides the AGSTAR programme and IEA
> > Bioenergy)? I am starting a course in anaerobic digestion later this
> > year and I am looking for background material.
> >
> >
> >
> >
> >
> > Best regards
> >
> >
> >
> >
> >
> > Michael Madsen
> >
> >
> >
> > University of Southern Denmark
> >
> > Centre for Bioenergy
> >
> >
> >
> >
> >
> > ------------------------------
> >
> > Message: 5
> > Date: Wed, 16 Jan 2008 09:52:39 -0400
> > From: Jaime Marti Herrero <tallerbiogas at hotmail.com>
> > Subject: Re: [Digestion] biodigester construction in Bolivia (Video)
> > To: <digestion at listserv.repp.org>
> > Message-ID: <BAY116-W30694C3DF60005B7FC3C18DC400 at phx.gbl>
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> >
> > Hi. i will try to explain some things about these biodigesters (i am from
> > Spain and my English is not as good as i would like, sorry)
> >
> > the raw material is fresh cow manure. some times the family mix it with
> > sheep manure or pig.But The principal material is cow manure.
> > This biodigesters are design for to be load with 20kg of fresh cow manure
> > and 60 liters of water. The retention time is about 75 days. And the biogas
> > production is estimated on 700-750 liters of biogas. this amount of biogas
> > is enough for 4-5 hour of cooking. Also they can use a gas for light with a
> > gas lamp.
> >
> > The biodigesters deley producing goob biogas about two months since its
> > installation and first load.
> >
> > in some regions, there are two moths with no water. In this case they can
> > use the liquid fertilizer to mix with new fresh cow manure anda load the
> > biodigester. so in these months the liquid fertilizer replaced the water.
> > The biodigester must be inside a greenhouse. the walls of the green house
> > must be made with pressed sand ('adobe' or 'tapial' in spanish) and this
> > wall have to be 40cm width. this is to take adventage os the thermal mass of
> > the walls for the colds nights.
> > the plastic is black color, but not to gain solar radiation, if not
> > because we have seen that with black color the durability of the plastic is
> > longer.
> >
> > I have write design Guide and manual installation about this technology.
> > It is in Spanish, and i hope some one could translate it to English. It is
> > free distribution document.
> >
> > Please, any question about the technology or the experience we are having
> > for 7 year in Bolivia, don't doubt to ask. As well, in Peru is beginning to
> > installation this kind of biodigester.
> >
> > We keep in contact
> > Jaime Marti Herrero
> > GTZ-Energ?a
> >
> > > From: list at sylva.icuklive.co.uk
> > > To: digestion at listserv.repp.org
> > > Date: Wed, 16 Jan 2008 11:39:09 +0000
> > > Subject: Re: [Digestion] biodigester construction in Bolivia (Video)
> > >
> > > On Mon, 14 Jan 2008 11:08:53 -0400, Jaime Marti Herrero wrote:
> > >
> > > >I just have upload a video to youtube about the construction of a
> > biodigester for Altiplano region, Bolivia. This means 3500-4500 meter over
> > the sea level, and minimum temperatures of -15C?.
> > >
> > > It looks interesting, what is the raw material?
> > >
> > > Also as the gas pipe leaves the digester there is what looks like a
> > > broken bottle Teed off the line, what is it?
> > >
> > > AJH
> > >
> > >
> > > _______________________________________________
> > > Digestion mailing list
> > > Digestion at listserv.repp.org
> > > http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
> > > Beginner's Guide to Biogas
> > > http://www.adelaide.edu.au/biogas/
> > > http://info.bioenergylists.org
> >
> > _________________________________________________________________
> > News, entertainment and everything you care about at Live.com. Get it now!
> > http://www.live.com/getstarted.aspx
> >
> > ------------------------------
> >
> > Message: 6
> > Date: Wed, 16 Jan 2008 10:03:18 -0400
> > From: Jaime Marti Herrero <tallerbiogas at hotmail.com>
> > Subject: Re: [Digestion] biodigester construction in Bolivia (Video)
> > To: <digestion at listserv.repp.org>
> > Message-ID: <BAY116-W37E48A70236FAB0FF2F840DC400 at phx.gbl>
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> >
> > I forgot to answer about the broken bottle, sorry.
> > this is a security valve. the gas line is divided, one pipe go to the
> > kitchen and the other is introduced in the bottle. This bottle conteins
> > water, and the pipe must be inseide the water for 8 to 13 cm. Is the
> > biodigester produces biogas and no one consume it, by this valve the gas can
> > go out (pushing the water inside the pipe) with out the air come inside the
> > system.
> >
> > the boottle have a hole to pt more water when it evaporates.
> >
> > Keep in contact
> > Jaime
> >
> >
> > > From: tallerbiogas at hotmail.com
> > > To: digestion at listserv.repp.org
> > > Date: Wed, 16 Jan 2008 09:52:39 -0400
> > > Subject: Re: [Digestion] biodigester construction in Bolivia (Video)
> > >
> > >
> > > Hi. i will try to explain some things about these biodigesters (i am
> > from Spain and my English is not as good as i would like, sorry)
> > >
> > > the raw material is fresh cow manure. some times the family mix it with
> > sheep manure or pig.But The principal material is cow manure.
> > > This biodigesters are design for to be load with 20kg of fresh cow
> > manure and 60 liters of water. The retention time is about 75 days. And the
> > biogas production is estimated on 700-750 liters of biogas. this amount of
> > biogas is enough for 4-5 hour of cooking. Also they can use a gas for light
> > with a gas lamp.
> > >
> > > The biodigesters deley producing goob biogas about two months since its
> > installation and first load.
> > >
> > > in some regions, there are two moths with no water. In this case they
> > can use the liquid fertilizer to mix with new fresh cow manure anda load the
> > biodigester. so in these months the liquid fertilizer replaced the water.
> > > The biodigester must be inside a greenhouse. the walls of the green
> > house must be made with pressed sand ('adobe' or 'tapial' in spanish) and
> > this wall have to be 40cm width. this is to take adventage os the thermal
> > mass of the walls for the colds nights.
> > > the plastic is black color, but not to gain solar radiation, if not
> > because we have seen that with black color the durability of the plastic is
> > longer.
> > >
> > > I have write design Guide and manual installation about this technology.
> > It is in Spanish, and i hope some one could translate it to English. It is
> > free distribution document.
> > >
> > > Please, any question about the technology or the experience we are
> > having for 7 year in Bolivia, don't doubt to ask. As well, in Peru is
> > beginning to installation this kind of biodigester.
> > >
> > > We keep in contact
> > > Jaime Marti Herrero
> > > GTZ-Energ?a
> > >
> > > > From: list at sylva.icuklive.co.uk
> > > > To: digestion at listserv.repp.org
> > > > Date: Wed, 16 Jan 2008 11:39:09 +0000
> > > > Subject: Re: [Digestion] biodigester construction in Bolivia (Video)
> > > >
> > > > On Mon, 14 Jan 2008 11:08:53 -0400, Jaime Marti Herrero wrote:
> > > >
> > > > >I just have upload a video to youtube about the construction of a
> > biodigester for Altiplano region, Bolivia. This means 3500-4500 meter over
> > the sea level, and minimum temperatures of -15C?.
> > > >
> > > > It looks interesting, what is the raw material?
> > > >
> > > > Also as the gas pipe leaves the digester there is what looks like a
> > > > broken bottle Teed off the line, what is it?
> > > >
> > > > AJH
> > > >
> > > >
> > > > _______________________________________________
> > > > Digestion mailing list
> > > > Digestion at listserv.repp.org
> > > > http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
> > > > Beginner's Guide to Biogas
> > > > http://www.adelaide.edu.au/biogas/
> > > > http://info.bioenergylists.org
> > >
> > > _________________________________________________________________
> > > News, entertainment and everything you care about at Live.com. Get it
> > now!
> > > http://www.live.com/getstarted.aspx
> > > _______________________________________________
> > > Digestion mailing list
> > > Digestion at listserv.repp.org
> > > http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
> > > Beginner's Guide to Biogas
> > > http://www.adelaide.edu.au/biogas/
> > > http://info.bioenergylists.org
> >
> > _________________________________________________________________
> > Invite your mail contacts to join your friends list with Windows Live
> > Spaces. It's easy!
> >
> > http://spaces.live.com/spacesapi.aspx?wx_action=create&wx_url=/friends.aspx&mkt=en-us
> >
> > ------------------------------
> >
> > Message: 7
> > Date: Wed, 16 Jan 2008 15:08:49 +0000
> > From: David Fulford <d.j.fulford at reading.ac.uk>
> > Subject: Re: [Digestion] biodigester construction in Bolivia (Video)
> > To: Jaime Marti Herrero <tallerbiogas at hotmail.com>,
> > <digestion at listserv.repp.org>
> > Message-ID: <5.2.1.1.2.20080116143655.036ec5b8 at pophost.rdg.ac.uk>
> > Content-Type: text/plain; charset="iso-8859-1"; format=flowed
> >
> > Jaime, Hi
> >
> > How many of these units have been built? If this is an ongoing programme,
> > it might be worth putting it up for an Ashden Award (www.ashdenawards.org
> > ).
> > I was in La Paz, Bolivia 2 years ago (March 2006) looking at a micro-hydro
> > programme on behalf of the Ashden Awards (it unfortunately did not get a
> > prize - the systems were seen as too expensive). There are several
> > programmes on biogas in different parts of the world that are getting
> > prizes, if you look at the list of past winners
> >
> > We do have a Spanish translator, so the forms called be written in
> > Spanish.
> > Unfortunately, it is too late for this year's awards, but if the project
> > is
> > working successfully, you can start the process next September for the
> > 2009
> > awards.
> >
> > The video looks very interesting.
> >
> > Cheers,
> >
> > David F
> >
> > At 09:52 16/01/2008 -0400, Jaime Marti Herrero wrote:
> >
> > >Hi. i will try to explain some things about these biodigesters (i am from
> > >Spain and my English is not as good as i would like, sorry)
> > >
> > >the raw material is fresh cow manure. some times the family mix it with
> > >sheep manure or pig.But The principal material is cow manure.
> > >This biodigesters are design for to be load with 20kg of fresh cow manure
> > >and 60 liters of water. The retention time is about 75 days. And the
> > >biogas production is estimated on 700-750 liters of biogas. this amount
> > of
> > >biogas is enough for 4-5 hour of cooking. Also they can use a gas for
> > >light with a gas lamp.
> > >
> > >The biodigesters deley producing goob biogas about two months since its
> > >installation and first load.
> > >
> > >in some regions, there are two moths with no water. In this case they can
> > >use the liquid fertilizer to mix with new fresh cow manure anda load the
> > >biodigester. so in these months the liquid fertilizer replaced the water.
> > >The biodigester must be inside a greenhouse. the walls of the green house
> > >must be made with pressed sand ('adobe' or 'tapial' in spanish) and this
> > >wall have to be 40cm width. this is to take adventage os the thermal mass
> > >of the walls for the colds nights.
> > >the plastic is black color, but not to gain solar radiation, if not
> > >because we have seen that with black color the durability of the plastic
> > >is longer.
> > >
> > >I have write design Guide and manual installation about this technology.
> > >It is in Spanish, and i hope some one could translate it to English. It
> > is
> > >free distribution document.
> > >
> > >Please, any question about the technology or the experience we are having
> > >for 7 year in Bolivia, don't doubt to ask. As well, in Peru is beginning
> > >to installation this kind of biodigester.
> > >
> > >We keep in contact
> > >Jaime Marti Herrero
> > >GTZ-Energ?a
> > >
> > > > From: list at sylva.icuklive.co.uk
> > > > To: digestion at listserv.repp.org
> > > > Date: Wed, 16 Jan 2008 11:39:09 +0000
> > > > Subject: Re: [Digestion] biodigester construction in Bolivia (Video)
> > > >
> > > > On Mon, 14 Jan 2008 11:08:53 -0400, Jaime Marti Herrero wrote:
> > > >
> > > > >I just have upload a video to youtube about the construction of a
> > > biodigester for Altiplano region, Bolivia. This means 3500-4500 meter
> > > over the sea level, and minimum temperatures of -15C?.
> > > >
> > > > It looks interesting, what is the raw material?
> > > >
> > > > Also as the gas pipe leaves the digester there is what looks like a
> > > > broken bottle Teed off the line, what is it?
> > > >
> > > > AJH
> > > >
> > > >
> > > > _______________________________________________
> > > > Digestion mailing list
> > > > Digestion at listserv.repp.org
> > > > http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
> > > > Beginner's Guide to Biogas
> > > > http://www.adelaide.edu.au/biogas/
> > > > http://info.bioenergylists.org
> > >
> > >_________________________________________________________________
> > >News, entertainment and everything you care about at Live.com. Get it
> > now!
> > >http://www.live.com/getstarted.aspx
> > >_______________________________________________
> > >Digestion mailing list
> > >Digestion at listserv.repp.org
> > >http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
> > >Beginner's Guide to Biogas
> > >http://www.adelaide.edu.au/biogas/
> > >http://info.bioenergylists.org
> >
> > *** Dr David Fulford, MSc Renewable Energy, Engineering Building ***
> > *** School of Construction Management and Engineering ***
> > *** The University of Reading, Whiteknights, ***
> > *** Reading RG6 6AY, UK Tel: +44-(0)118-378 8563, ***
> > *** Mob: 07746 806401 ***
> > *** Fax: +44-(0)118-931 3327 E-mail: D.J.Fulford at Reading.ac.uk ***
> >
> >
> >
> >
> > ------------------------------
> >
> > Message: 8
> > Date: Wed, 16 Jan 2008 11:27:48 -0400
> > From: Jaime Marti Herrero <tallerbiogas at hotmail.com>
> > Subject: Re: [Digestion] biodigester construction in Bolivia (Video)
> > To: David Fulford <d.j.fulford at reading.ac.uk>,
> > <digestion at listserv.repp.org>
> > Message-ID: <BAY116-W37DC9CB1841E8ECE3A853BDC400 at phx.gbl>
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> >
> > Hi David.
> > There are now about 350 low cost biodigesters installed in Bolivia. But
> > now the GTZ (finances Netherlands) have a big program for the next three
> > years, we are thinking in 2000 or 3000 biodigesters for 2010, depends on the
> > demand and answer from the rural families. We are making alliances with
> > small scale farmers associations interested in biodigester.
> >
> > the cost on material of a biodigester is 170 $us in atiplane; 140 $us in
> > valley; and 120$us at tropical areas.
> >
> > Thanks for the link http://www.ashdenawards.org/. i dint knew about this
> > before. we will be looking to appaly for next year....thanks a lot1
> >
> > Keep in contact
> > jaime
> >
> >
> > > Date: Wed, 16 Jan 2008 15:08:49 +0000
> > > To: tallerbiogas at hotmail.com; digestion at listserv.repp.org
> > > From: d.j.fulford at reading.ac.uk
> > > Subject: Re: [Digestion] biodigester construction in Bolivia (Video)
> > >
> > > Jaime, Hi
> > >
> > > How many of these units have been built? If this is an ongoing
> > programme,
> > > it might be worth putting it up for an Ashden Award (
> > www.ashdenawards.org).
> > > I was in La Paz, Bolivia 2 years ago (March 2006) looking at a
> > micro-hydro
> > > programme on behalf of the Ashden Awards (it unfortunately did not get a
> > > prize - the systems were seen as too expensive). There are several
> > > programmes on biogas in different parts of the world that are getting
> > > prizes, if you look at the list of past winners
> > >
> > > We do have a Spanish translator, so the forms called be written in
> > Spanish.
> > > Unfortunately, it is too late for this year's awards, but if the project
> > is
> > > working successfully, you can start the process next September for the
> > 2009
> > > awards.
> > >
> > > The video looks very interesting.
> > >
> > > Cheers,
> > >
> > > David F
> > >
> > > At 09:52 16/01/2008 -0400, Jaime Marti Herrero wrote:
> > >
> > > >Hi. i will try to explain some things about these biodigesters (i am
> > from
> > > >Spain and my English is not as good as i would like, sorry)
> > > >
> > > >the raw material is fresh cow manure. some times the family mix it with
> > > >sheep manure or pig.But The principal material is cow manure.
> > > >This biodigesters are design for to be load with 20kg of fresh cow
> > manure
> > > >and 60 liters of water. The retention time is about 75 days. And the
> > > >biogas production is estimated on 700-750 liters of biogas. this amount
> > of
> > > >biogas is enough for 4-5 hour of cooking. Also they can use a gas for
> > > >light with a gas lamp.
> > > >
> > > >The biodigesters deley producing goob biogas about two months since
> > its
> > > >installation and first load.
> > > >
> > > >in some regions, there are two moths with no water. In this case they
> > can
> > > >use the liquid fertilizer to mix with new fresh cow manure anda load
> > the
> > > >biodigester. so in these months the liquid fertilizer replaced the
> > water.
> > > >The biodigester must be inside a greenhouse. the walls of the green
> > house
> > > >must be made with pressed sand ('adobe' or 'tapial' in spanish) and
> > this
> > > >wall have to be 40cm width. this is to take adventage os the thermal
> > mass
> > > >of the walls for the colds nights.
> > > >the plastic is black color, but not to gain solar radiation, if not
> > > >because we have seen that with black color the durability of the
> > plastic
> > > >is longer.
> > > >
> > > >I have write design Guide and manual installation about this
> > technology.
> > > >It is in Spanish, and i hope some one could translate it to English. It
> > is
> > > >free distribution document.
> > > >
> > > >Please, any question about the technology or the experience we are
> > having
> > > >for 7 year in Bolivia, don't doubt to ask. As well, in Peru is
> > beginning
> > > >to installation this kind of biodigester.
> > > >
> > > >We keep in contact
> > > >Jaime Marti Herrero
> > > >GTZ-Energ?a
> > > >
> > > > > From: list at sylva.icuklive.co.uk
> > > > > To: digestion at listserv.repp.org
> > > > > Date: Wed, 16 Jan 2008 11:39:09 +0000
> > > > > Subject: Re: [Digestion] biodigester construction in Bolivia (Video)
> > > > >
> > > > > On Mon, 14 Jan 2008 11:08:53 -0400, Jaime Marti Herrero wrote:
> > > > >
> > > > > >I just have upload a video to youtube about the construction of a
> > > > biodigester for Altiplano region, Bolivia. This means 3500-4500 meter
> > > > over the sea level, and minimum temperatures of -15C?.
> > > > >
> > > > > It looks interesting, what is the raw material?
> > > > >
> > > > > Also as the gas pipe leaves the digester there is what looks like a
> > > > > broken bottle Teed off the line, what is it?
> > > > >
> > > > > AJH
> > > > >
> > > > >
> > > > > _______________________________________________
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> > http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
> > > > > Beginner's Guide to Biogas
> > > > > http://www.adelaide.edu.au/biogas/
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> > > >
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> > >
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> > End of Digestion Digest, Vol 19, Issue 4
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> Ing. Jenny Aragundy Ochoa, MSc.
>
> Teléfonos: (593 2) 2535-950 / (593 2) 2592-525
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