[Stoves] Biochar in the loo

[Stephen Joseph]

HI Joshua

You find a nice red swelling clay which has a very high cation exchange capacity make it moist and add lime and then just mix in with the biomass

The clay activates the surface of the biochar unceasing its ability to adsorb N and P compounds.

It is also an acid catalyst and helps break down the human waste.  We are also trying to show that the clay is important for increasing beneficial micro-organisms but still an hypothesis at present.

Regards
Stephen
On 5 Oct 2014, at 9:42 pm, Joshua Guinto <jed.building.bridges at gmail.com> wrote:

> Thanks for the quick reply Stephen.... but what is clay for? Shall i add clay in dry, granular form? 
> 
> 
> 2014-10-05 18:19 GMT+08:00 Stephen Joseph <joey.stephen at gmail.com>:
> 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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