[Stoves] Biochar in the loo

[Huck Rorick]

Hi Stephen,

How would you incorporate the latrine contents into the soil?  Seems like a
composting toilet that is set up for maturing of the compost and then easy
emptying would be important.

How critical is the specific feedstock you mention?  It seems a little
complicated.  And how much of each item would you add?

Is there anything detailed on the experience in Vietnam?

 

Huck

From: Stephen Joseph [mailto:joey.stephen at gmail.com] 
Sent: Sunday, October 5, 2014 3:20 AM
To: Discussion of biomass cooking stoves
Subject: Re: [Stoves] Biochar in the loo

 

HI Josh

 

You actually don't need a special toilet.  Just adding biochar to a pit
latrine if the biochar is made from a grass/straw with a little lime and
clay added to the feedstock  at around 450C has worked well in Vietnam

 

Regards

Stephen Joseph

On 5 Oct 2014, at 8:27 pm, Joshua Guinto <jed.building.bridges at gmail.com>
wrote:





Hi Kelpie

Thanks for sharing the links.... i browsed through the bio char videos..
then ended up with the climate change and capitalism. The last video sparked
an ember in myself  when i was a young activist in the streets.

Back to the terra preta toilet... where was it tried in actual field
situations? In a few days and in the coming weeks, i will be involved in
disaster rehabilitation efforts, one after the Typhoon Haiyan and another in
anticipation of the eruption of Mayon Volcano in the province of Albay. I
will introduce char making stoves and bio char and then water filters and
then thought about introducing terra preta toilets. 

Any advice will be appreciated. 

Kind regards

Jed 

 

 

2014-10-05 12:08 GMT+08:00 Kelpie Wilson <kelpiew at gmail.com>:

The idea of using biochar in public toilets as a deodorizer is a good one.
My own personal experience with biochar in dry toilets says it works and the
deodorizing power is greatly enhanced by the addition of bokashi. It grows a
lovely white mold over everyhing and it smells kind of like pickles.

The best place to go for information on scientific biochar poo fermentation
is the Terra Preta Sanitation group at Hamburg University of Technology
http://www.terra-preta-sanitation.net/cms/index.php

Regards,
Kelpie


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