[Terrapreta] Char made made under pressurized conditions?

[Folke Günther]

I have been following the discussion for some days now, and now, I can’t
keep quiet any more.

1.	If you get ammonia from your compost pile, you are managing it in
the wrong way. You either has too little plant material vs. meat or
nitrogen-rich material, too much water, or too bad aeration. All these
problems can be alleviated wit the addition of charcoal.
2.	Don’ put urine on warm charcoal. You will loose a lot in the air.
3.	On the other hand, if you have aces to urine, from a
source-separating toilet, or from a stable, it is a god idea to add it to
fresh carcoal. It will be absorbed to a large extent (I don’t have numbers
here, does anybody have numbers on how much urine could be absorbed in
charcoal?) Anyhow, the smell from a jar of urine will fade considerably when
charcoal is added.

 

Adding two system diagrams on the combination of different activities in a
charring society If they are unintelligible, please contact me.

 

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---  

Folke Günther

Kollegievägen 19

224 73 Lund, Sweden

home/office: +46 46 14 14 29

cell:               0709 710306  skype:  folkegun

Homepage:     http://www.holon.se/folke  
blog: http://folkegunther.blogspot.com/

 

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Från: terrapreta-bounces at bioenergylists.org
[mailto:terrapreta-bounces at bioenergylists.org] För Sean K. Barry
Skickat: den 29 mars 2008 22:40
Till: Terra Preta; Jeff Davis
Ämne: Re: [Terrapreta] Char made made under pressurized conditions?

 

Hi Jeff,

 

This is an interesting idea, because of the free source of cool ammonia-NH3
gas from from off a compost pile.  I wonder what the concentration of
ammonia-NH3 in air is?  It is entirely possible that ammonia-NH3 would be
absorbed into charcoal, but maybe in the form of a solidified ammonia salt,
like ammonium bicarbonate (NH4HCO3), rather than as a gas.  I don't believe
NH3 gas reactes with carbon-C atoms on the surface of the charcoal.

 

Eprida had/has a product called ECOSS which has (I believe) ammonium
bicarbonate deposited on the surface of the charcoal (like an M&M candy
coating).  Some of their early bags smelled like ammonia when first opened,
I heard.  I think making a fertilized with ammonia charcoal product would
require some way to "fix" the NH3 molecules onto the charcoal.

 

Regards,

 

SKB

----- Original Message ----- 

From: Jeff Davis <mailto:jeff0124 at velocity.net>  

To: Terra Preta <mailto:terrapreta at bioenergylists.org>  

Sent: Saturday, March 29, 2008 4:21 PM

Subject: Re: [Terrapreta] Char made made under pressurized conditions?

 

Dear All,

I was thinking more on the lines of capturing the lost ammonia gas (etc)
from the composting pile. If it would be possible to absorb this in the
cooling period of the charcoal. I know it's a close to zero chance.


Best regards,


Jeff




> Either case, I still doubt that N2 as a reasonably inert gas will do
> anything - either as a fertilizer or be absorbed into the char.


-- 
Jeff Davis

Some where 20 miles south of Lake Erie, USA

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