Aquaponics Digest - Tue 04/24/01
Message 1: Costa Rica revisited
from "Lorre Smith"
Message 2: RE: More Bio-Digester Websites
from "Hurst, Steve ( China)"
Message 3: Re: Greenhouses
from "Adriana Gutierrez"
Message 4: Re: Plant Nutrition: Complex Mechanisms
from "Adriana Gutierrez"
Message 5: RE: Aussie Alternative Energy Device: Linear Energy Corp
from Ian Franzmann
Message 6: Re: aquarium plants
from Bertmcl 'at' aol.com
Message 7: Re: Greenhouses
from "Meir Leshem"
Message 8: My site
from Raul Vergueiro Martins
Message 9: Re: Unlinking Systems - Biodigestor construction
from "Juan C. Bobeda"
Message 10: Re: Unlinking Systems - Biodigestor construction
from Raul Vergueiro Martins
Message 11: Re: Unlinking Systems - Biodigestor construction
from "Adriana Gutierrez"
Message 12: Re: Unlinking Systems - Biodigestor construction
from "Todd Breunig"
| Message 1
Subject: Costa Rica revisited
From: "Lorre Smith"
Date: Tue, 24 Apr 2001 00:45:59 -0500
Sometime within the last month or two, someone posted to this list about an
aquaponics farm for sale in Costa Rica, as well as a link to go visit the
site, look at pictures and obtain additional information. I have spent over
an hour going through my old emails and cannot find it. Would someone be
kind enough to forward the link to me privately if you still have the data?
Thanks in advance,
Lorre Smith
| Message 2
Subject: RE: More Bio-Digester Websites
From: "Hurst, Steve ( China)"
Date: Tue, 24 Apr 2001 12:13:14 +0100
Here are some more Bio-Digester websites
One of them deals with the construction of Plastic Biodigesters,
some of the others deal with Methane production, which is what I
am interested in. Fuel source for my generator backup for my Solar Power.
http://www.hcm.fpt.vn/inet/~recycle/recycle/recycle.htm
http://www.inform.umd.edu/EdRes/Topic/AgrEnv/ndd/watermgt/GENERATING_METHANE
_GAS_FROM_MANURE.html
http://www.webconx.com/Methane.htm
http://www.hcm.fpt.vn/inet/~ecofarm/Biodiges.htm
http://www.hcm.fpt.vn/inet/~recycle/
Steve H
| Message 3
Subject: Re: Greenhouses
From: "Adriana Gutierrez"
Date: Tue, 24 Apr 2001 06:53:19 -0500
Carlos,
I would love to hear more about Mohapatra's greenhouses. I'm sure
others on the list will be too. If you want to e-mail them to me in
Spanish I will translate it and post it to the list for you.
Adriana
> Dear Adriana:
> If you still don't a greenhouse, do you know about Mohapatra's
mini
> greenhouses ? They are easy to build and very creap. Also, you will
be able
> to modify them to your requirements. I did it and they work.
> If you don't know and you need more information, let me know.
I'm
> describing then, with the permission of Subhas Mohapatra, in my
"ABC" in
> Spanish.
| Message 4
Subject: Re: Plant Nutrition: Complex Mechanisms
From: "Adriana Gutierrez"
Date: Tue, 24 Apr 2001 08:13:23 -0500
Ted,
No discussion onthis topic is complete without mention of Dr. Elaine
Ingham, one of the gurus in this area. Her web site is
http://www.soilfoodweb.com/ and she has a periodic e-mail newsletter.
> Take at least two of these tonight and call me in the morning.
> We can schedule another appointment and maybe we talk some more,
eh?.
| Message 5
Subject: RE: Aussie Alternative Energy Device: Linear Energy Corp
From: Ian Franzmann
Date: Tue, 24 Apr 2001 23:30:23 +1000
Hi I have a 2 page article describing how it works written in 1997 "Titled
Atmospheric Energy" -Harnessing The 'Powers' of The Atmosphere. Anybody
interested I could post or fax a copy.
I makes sense reading it, as an explanation of the hows and whys of the
unit is not on their site.
>Thanks Marc,
> Must have Missed that.
>Thats got to be the final word then.
>What a waste of steel
>Steve H
Some one could expand on the information after reading it.
Ian Franzmann
| Message 6
Subject: Re: aquarium plants
From: Bertmcl 'at' aol.com
Date: Tue, 24 Apr 2001 11:32:18 EDT
Steve, How wiil you protect the roots?
Bert
| Message 7
Subject: Re: Greenhouses
From: "Meir Leshem"
Date: Tue, 24 Apr 2001 21:30:00 +0200
Carlos/Adriana
Details of the Greenhouses will be appreciated.
Meir
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----- Original Message -----
From: Adriana Gutierrez
To:
Sent: Tuesday, April 24, 2001 1:53 PM
Subject: Re: Greenhouses
> Carlos,
> I would love to hear more about Mohapatra's greenhouses. I'm sure
> others on the list will be too. If you want to e-mail them to me in
> Spanish I will translate it and post it to the list for you.
>
> Adriana
>
>
> > Dear Adriana:
> > If you still don't a greenhouse, do you know about Mohapatra's
> mini
> > greenhouses ? They are easy to build and very creap. Also, you will
> be able
> > to modify them to your requirements. I did it and they work.
> > If you don't know and you need more information, let me know.
> I'm
> > describing then, with the permission of Subhas Mohapatra, in my
> "ABC" in
> > Spanish.
>
>
>
| Message 8
Subject: My site
From: Raul Vergueiro Martins
Date: Tue, 24 Apr 2001 15:40:41 +0100
Hello Heir:
There was a problem in my server, and some people are experiencing some problems to access
my site http://www.hydor.eng.br
It seems the problems were eliminated, and so, please, try your connection again.
I would like to have a return from some friends in the list, just to know if all is all
right
Thanks in advance.
Best regards
rvm 'at' sti.com.br
| Message 9
Subject: Re: Unlinking Systems - Biodigestor construction
From: "Juan C. Bobeda"
Date: Tue, 24 Apr 2001 17:03:44 -0400
Adriana and Paula,
Building and operating a simple biodigestor isn't expensive or complicated
as you can find out at the following sites.
You can find a manual on how to build a low cost polyethylene biogas plant
here:
http://www.ias.unu.edu/proceedings/icibs/ibs/info/ecuador/install-polydig.htm
You can find another construction and operation manual for a polyethylene
tubular biodigestor here:
http://www.fao.org/WAICENT/FAOINFO/AGRICULT/AGA/AGAP/FRG/Recycle/biodig/manual.htm
Juan C. Bobeda
Adriana Gutierrez wrote:
> DISADVANTAGES
> Equipment - The main disadvantage of unlinking systems is the need for
> one additional piece of equipment - the biodigester. In a small
> 3,000-6,000 square foot greenhouse this would consist of a series of
> drums sized, linked and managed in a very specific sequence to
> optimize biofertilizer production. This requires some additional
> capital expenditure and some space to house the equipment and stored
> biofertilizers.
| Message 10
Subject: Re: Unlinking Systems - Biodigestor construction
From: Raul Vergueiro Martins
Date: Tue, 24 Apr 2001 19:29:22 +0100
Hello Juan:
I have recently participated of a e-seminar about these biodigesters, as you did too.
I made no comments during all the e-seminar, because, as I told to Jackie Foo by that
time, all I wanted was to know about the stage of development of agricultural biodigestion
practice at this momment.
What I can say here, is that those biodigesters are not sufficient developed as to give us
a complete biodigested biomass.
The principle goal of those biodigesters, as the major part of them around the world, is
the production of biogas, and not for the production of a high quality biofertilizer (in
terms of complete biodigestion).
To use the biofertilizer produced by one of these biodigesters in hydroponics, is not
feasible, and will bring lots of problems for those who try to do that.
I would never advise someone to do so.
As for the use of that biofertilizer in soil, it is a good practice, as the final
decomposition will be carried in soil.
Even for the use of the biogas from such a biodigester, it will be very dangerous, as it
is stocked in a poliethilene film bag.
In one of the manuals furnished during the e-seminar, we can see a photo of large sized
bags with biogas, placed in the ceiling of a laboratory.
I would never make that. Imagine the ceiling of a laboratory, completely covered with
biogas (and this means methane) filled bags, with people working under them.
Where are the minimum concepts of safety?
If somebody wants to try the use of biofertilizer in soil, he can build such a
biodigester. But to use it in hydroponics, it is a great adventure, that certainly will
carry its user and others that talk with him, to a complete discredit in biodigestion
technology. It would be a very bad propaganda, based in the poor knowledge of the actual
technology of agricultural biodigestion.
I don't want to say here that the poliethilene biodigester doesn't work. It works, and
very well, once you want small ammounts of biogas to be burned in a small single fired
stove, and some incomplete digested biofertilizer.
Raul Vergueiro Martins
rvm 'at' sti.com.br
"Juan C. Bobeda" wrote:
> Adriana and Paula,
>
> Building and operating a simple biodigestor isn't expensive or complicated
> as you can find out at the following sites.
>
> You can find a manual on how to build a low cost polyethylene biogas plant
> here:
> http://www.ias.unu.edu/proceedings/icibs/ibs/info/ecuador/install-polydig.htm
>
> You can find another construction and operation manual for a polyethylene
> tubular biodigestor here:
> http://www.fao.org/WAICENT/FAOINFO/AGRICULT/AGA/AGAP/FRG/Recycle/biodig/manual.htm
>
> Juan C. Bobeda
>
> Adriana Gutierrez wrote:
>
> > DISADVANTAGES
> > Equipment - The main disadvantage of unlinking systems is the need for
> > one additional piece of equipment - the biodigester. In a small
> > 3,000-6,000 square foot greenhouse this would consist of a series of
> > drums sized, linked and managed in a very specific sequence to
> > optimize biofertilizer production. This requires some additional
> > capital expenditure and some space to house the equipment and stored
> > biofertilizers.
| Message 11
Subject: Re: Unlinking Systems - Biodigestor construction
From: "Adriana Gutierrez"
Date: Tue, 24 Apr 2001 17:31:21 -0500
Juan,
Simple biodigesters don't completely digest the manures, leaving some
residual slurries. Complete, or multi-phase digesters provide
complete disgestion leaving biofertilizer. Most of the simple
biodigesters in the literature are intended for gas production rather
than biofertilizer production. Even so, a multi-phase digester is
not too expensive either.
Adriana
> Building and operating a simple biodigestor isn't expensive or
complicated
> as you can find out at the following sites.
| Message 12
Subject: Re: Unlinking Systems - Biodigestor construction
From: "Todd Breunig"
Date: Tue, 24 Apr 2001 18:09:27 -0500
Adriana,
Is there any literature on how to construct a multi-phase digester to make =
biofertilizer for a small indoor grow room(8' x 8' x 7')? I would be =
interested in using fish waste to start the process.
Todd
>>> gutierrez-lagatta 'at' home.com 4/24/01 5:31:21 PM >>>
Juan,
Simple biodigesters don't completely digest the manures, leaving some
residual slurries. Complete, or multi-phase digesters provide
complete disgestion leaving biofertilizer. Most of the simple
biodigesters in the literature are intended for gas production rather
than biofertilizer production. Even so, a multi-phase digester is
not too expensive either.
Adriana
> Building and operating a simple biodigestor isn't expensive or
complicated
> as you can find out at the following sites.
|
