[Stoves] ruminating on dung

Frans Peeters peetersfrans at telenet.be
Sat Oct 10 07:59:59 MDT 2015

Dear A.D.

             If you put on the seeve a paper or glasfiber  labo filter of 30 cm Sleichter & Schul  or test newspaper then only the soluble minerals (and coffie ) are washed out .     
       The half part , you dry ,weighing end make  burn testing .
Other half part you treat with HCl 3N to dissolve the Calcium ,. filter and wash 3x ,weighing ,burning
See the difference in weight and flame
The two ashes treat with HCl and filter and wash both. On labo scale .
See if the remaining is SiO2 from plants, few micron size  or sand 200 micron .

     Compare with Indian grass burned ash !
It is difficult to burn too due no gasification but only glowing .
Much ash, probably CaO on soft grass and some SiO2 on cutting- grass

-----Oorspronkelijk bericht-----
Van: Stoves [mailto:stoves-bounces at lists.bioenergylists.org] Namens Richard Stanley
Verzonden: zaterdag 10 oktober 2015 1:58
Aan: Discussion of biomass cooking stoves
Onderwerp: Re: [Stoves] ruminating on dung

Dear AD,
Thanks for that insight. Its precisely this kind of input that helps define the parameters of utility of such a process. Mary and Francis reported that it worked on the masaai " range fed" cattle, camels in Somalia) and elephants in Kenya and Tanzania and all were feeding off the land as it were.
Anon, Richard
Sent from my iPhone

On Oct 7, 2015, at 23:08, Anand Karve <adkarve at gmail.com> wrote:

Dear Stanley,
we tried washing cattle dung in a sieve, but at least in the case of Indian dairy cattle (cows as well as buffalos), no residue was left on the sieve after washing. The sieve that we used had a very fine stainless steel mesh which was even finer than a normal mosquito-proofing mesh. Fibres could be obtained from the dung of horses and donkeys which are non-ruminant animals. Dung of elephants and pandas might also yield fibres.

Dr. A.D. Karve

Chairman, Samuchit Enviro Tech Pvt Ltd (www.samuchit.com)

Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)

On Thu, Oct 8, 2015 at 1:49 AM, Richard Stanley <rstanley at legacyfound.org> wrote:
> Friends of dung,
> In Miumbuni Village, about 2.5 hrs east of Nairobi (along the Mombassa highway), and a 9 mile slog north off road,  are two of some the the most dedicated experienced and resrouceful briquette training teams one could hope to know. Husband and wife, Mary and Francis  Kavita, were faced with the challenge of making fuel briquettes from only cattle dung for a group of Masaii about four years ago.
> Here is what hey came up with;
> 1)  soak the dung and crumble it a bit manually,  to form a chunky mash.
> 2) slosh this mash  around in water in a seive (they used an old,  very traditional and ubiquitous woven cane  seiving tray common to  many  traditional cultures: Its used to clean grains such as rice and beans ) replenishing the water until it comes clean.
> The resulting fibers are great for combustion in the briquetted form ( 
> they form a good structural matrix which can encapsulate up to  50% 
> sawdust rice husks or other granular material as well —y crude volume 
> comparison—,or they burn well by themselves),
> 3) and ….the collected  wash off water turns to  be great as a liquid fertilizer.
> It appears to be a fra better solution than  the reverse osmosis proposed by one ivy league school whose engineering faculty blithly ignored these little villagers in their pursuit for academic excellence but no matter: The real word is getting out quite nicely thanks to the internet and hopefully your all as well in sharing their story.
> It remains for those inclined to do real science now: How to properly 
> assay wh

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