[Stoves] Biochar in the loo

[Energies Naturals C.B.]

Hallo Stephen,

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

 this is very interesting for me. I have made this mix myself, finding it a unique binding agent for very fine biochar.

I would like to know more about the cientific background to these phenomenae.

Can you help me ?

Thanks a lot in advance

Rolf


On Sun, 5 Oct 2014 21:51:08 +1100
Stephen Joseph <joey.stephen at gmail.com> wrote:

> 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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