On Aug 16, "Bob Morriss" wrote:
> We are a small environmental group. We have been developing
>a Bio Organic Fertilizer process for about 10 years.
>.......(cut)...Our tests have demonstrated very good results.
> We have been working in Asia on rice hull degradation
>with very good results. In a five crop demo, with a similar
>product, we learned the farmer could sell his rice for double
>that of NPK, herbicides and pesticide grown crops.
>...(cut)...We believe BOF will repair the soil and provide
>the nutrients necessary for a healthy and larger crop.
> .....(cut)....If anyone is interested in cooperating with us
>on these demos we would be happy to discuss it with you.
I am now working on the establishment of the Children's Village of
Kenya (CVK) where I have confirmation on access to land already. So I
am looking at how to develop cooperations for the transfer and
implementation of technologies at CVK so that OVC (orphans and
vulnerable children) can benefit. There are two sugested sites for the
CVK (one that is 130 acres and the other is 170 acres) and I hope to
target for 1000 children (?) per site.
For sure I will introduce the use of charred materials in the making
of composts. It is a simple practice. The technology that I will need
is how to make charred materials from agricultural residues (not wood)
like maize stalks, roots residues, etc.
Kenya has local technology for making charcoal but these are
"commercial" scale kilns. Availability of maize stalks and root
residues are seasonal, so it could be our choice too but there is also
the need for vocational training on how to make charred materials at
the household level.
I hope Mel can tell us more about how the Nicaraguans do it.
regards
jacky
--
15 Aug 2007: www.iobbnet.org is currently not available. Sorry for the
inconvenience.
+++++
Charcoal production is seemingly more difficult than just harvesting
the ash, etc. left from high oxygen-combustion fires. Wood ash and
charcoal are markedly different as a soil amendment, No? I know one
can quickly overuse wood ash, but charcoal seems to be stable, if I'm
understanding this correctly, and mostly or always beneficial up to a
point. I'm sure there is a balance that needs to be maintained between
charcoal, humus and other soil components.
My question, probably simple-minded, concerns the chemical and
structural differences between wood ash and charcoal. Is wood ash
mostly carbon also, or has that gone up into the atmosphere, leaving
only other compounds?
Are there intermediate forms of processing between fire (high oxygen
combustion) and pyrolysis, which might be easier (less management) for
people to control consistently than pyrolysis or straight charcoal
production? If so, would your carbonaceous end-product be suitable, or
almost as suitable as a soil amendment?
Any thoughts?
Cheers,
Dan N.
Dan Nagengast
785-748-0959
785-748-0609 fax
nage...@earthlink.net
www.kansasruralcenter.org
Park yourself in front of a world of choices in alternative vehicles.
Visit the Yahoo! Auto Green Center.
since Mel is offline, let me respond to/comment on your questions.
On Aug 16, Daniel Nagengast <nageng...@earthlink.net> wrote:
DN> Charcoal production is seemingly more difficult than just
harvesting
> the ash, etc. left from high oxygen-combustion fires.
yes. charcoal production is a technology. Ash is just a by-product of
open air burning or as you say: high oxygen-combustion fires.
DN> My question, probably simple-minded, concerns the chemical and
> structural differences between wood ash and charcoal.
wood ash is usually appears as a powder after the fire.
Charcoal has a structure.
I grew up with the use of charcoal. I also understand that there are
children (and people) nowadays who may not have seen charcoal before.
These people only know electricity and cooking gas and most probably
live in apartments in the city. They are not allowed to burn anything
as everything goes into the rubbish bin.
So how does one explain this to such persons and children.
(i) An ash is what you get after burning something. e.g. cigarette ash
is ash from tobacco and paper. It is a powder.
(ii) a charred material is like an overtoasted bread. It is black and
solid but can be powderised. It has not caught "fire" yet.
DN>Is wood ash
> mostly carbon also, or has that gone up into the atmosphere, leaving
> only other compounds?
In general, wood ash has no carbon.
Composition of a wood ash depends on the type of material burnt.
Google "wood ash composition" and you will get lots of information.
e.g. in http://cavemanchemistry.com/cavebook/chpotash2.html
1000 lbs of beech wood when burnt gives you a wood ash residue of 5.8
lbs.
regards
jacky