[Stoves] Cleaning Dung

[Anand Karve]

Dear Richard,
 The undigested solid matter in the dung is in fact the lignocellulosic
matter, However, in the case of ruminents, it is not in a fibrous form but
in the form of particles due to the practice of chewing the cud.  It is the
dung of non-ruminents, like horses and elephants that has fibres.
Yours
A.D.Karve

On Sat, Feb 11, 2012 at 11:30 PM, Richard Stanley
<rstanley at legacyfound.org>wrote:

> Ad,
>
>  I don't personally think the solids would be of much value for a good
> briquette:  What I would look for personally, is  your lignocellulosic
> material, ( the more fibrous stuff)  to encapsulate other more carbon rich
> salt free, materials sawdust charcoal crumbs/ dust, selected agro residues
> with aromatic-or non aromatic- considerations depending upon what kind of
> fuel aroma and duration of heat you desire.
>
> Richard Stanley
>
>
>  On Feb 10, 2012, at 9:36 PM, Anand Karve wrote:
>
> Cattle dung consists mainly of non-digestible lignocellulosic material,
> millions of micro-organisms, mucus produced by the animals and by the
> microbes, and some minerals. In fact it is the microbes and the mucus in
> the dung that yield biogas on anaerobic fermentation.  A pressurised sieve,
> technically called a filter press, is the best device for separating the
> non-soluble solids from the fluids. If the fluids contained the microbes
> and the mucus, they should be subjected to anaerobic digestion before
> allowing them to be used as manure.  Dung also has a very high ash content,
> because of which its calorific value is rather low. Dry dung has calorific
> value of about 3500 kcal/kg.  Has anybody measured the calorific value of
> the solids in the dung, after removal of the fluids from it by using a
> filter press?
> Yours
> A.D.Karve
>
> On Sat, Feb 11, 2012 at 8:27 AM, Sarbagya Tuladhar <sarbagya007 at gmail.com>wrote:
>
>>  Hi Boston
>>
>>
>> I volunteered with EWB Australia in Nepal working on a clean dung burning
>> stove and thus worked with the dung as a fuel . Washing of the dung was
>> done and briquettes which was a real success. Paper pulp used as a binder
>> worked really well. Also the chloride contents of the dung which is
>> responsible for watery eyes was removed on washing the dung which was
>> proven by the copper wire test. We even fabricated a simple dung press for
>> the same. The liquid portion of the dung was reutilised as manure in the
>> fields. Thus the whole sceptism about "should" use dung as manure in the
>> fields and not as a cooking fuel was somewhat solved. Did not test the NPK
>> contents of the liquid portion though...
>>
>> Sarbagya
>>
>> Sent from my iPhone
>>
>> On 11/02/2012, at 2:06 AM, Boston Nyer <bostonnyer at gmail.com> wrote:
>>
>>  Hello,
>>
>> I'm looking to clean/rinse cow dung and do not have any experience doing
>> so.  Does anyone have any experience cleaning dung and would like to share?
>>
>>
>> Thank you!
>> Boston
>>
>> --
>> Boston
>>  Skype: BostonNyer
>> Cell: (585) 503-3459
>> www.burndesignlab.org
>>
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>
>
> --
> ***
> Dr. A.D. Karve
> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
>
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-- 
***
Dr. A.D. Karve
Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
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