[Greenbuilding] Biochar Bricks for Green Buildings

[Erin Rasmussen]

Charcoal made cleanly from wood or agricultural residues is biochar.  Yes
there are better ways of making charcoal.

Yes sometimes it's better to use solar, stickwood, briquettes and/or a
digestor.

And - you can burn fuels for cooking, and cooking institutionally, do so
cleanly, and have biochar left over for improving poor soils, for cooking
cleanly at low heat in an improved charcoal stove and also for other
filtering contaminants from ruminant grazing.  

There are 4 Biochar discussion lists, and a nice giant jumping off point on
our biochar site:
http://biochar.bioenergylists.org/

And you can just ask me - I'd be happy to talk your ear off.
Cheers,
Erin Rasmussen
erin at trmiles.com


-----Original Message-----
From: greenbuilding-bounces at lists.bioenergylists.org
[mailto:greenbuilding-bounces at lists.bioenergylists.org] On Behalf Of RT
Sent: Thursday, March 01, 2012 4:26 PM
To: Green Building
Subject: Re: [Greenbuilding] Biochar Bricks for Green Buildings

On Thu, 01 Mar 2012 18:09:11 -0500, Erin Rasmussen <erin at trmiles.com>  
wrote:
>
> Slideshare Presentation: Biochar Bricks for Green Buildings
> http://www.slideshare.net/saibhaskar/biochar-bricks-and-green-buildings


Does the  "biochar" production process not involve a long, smouldering  
fire (ie inefficient burning) to convert the material to charcoal ?

In the places where the bio-charcoal is used, aren't they places where  
sunlight  (ie solar cookers would be a "Green" alternative to traditional  
charcoal cooking) and people (and their poop for biogas production) are  
abundant ?

Would it not seem to make more sense to simply feed the green vegetative  
waste into a biogas digester to produce clean-burning fuel rather than  
consuming fuel to burn the vegetative waste to turn it into charcoal ?

-- 
=== * ===
Rob Tom
Kanata, Ontario, Canada

< A r c h i L o g i c  at  Y a h o o  dot  c a  >
(manually winnow the chaff from my edress if you hit "reply")

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