[Stoves] dung as fuel..

[Musungu Wycliffe Nabutola]

Dear Richard,
An AD plant is an Anaerobic Digestion plant. Something like a Biogas
digestion plant.
Musungu.

-----Original Message-----
From: Stoves [mailto:stoves-bounces at lists.bioenergylists.org] On Behalf Of
Richard Stanley
Sent: 06 October 2014 05:09
To: Discussion of biomass cooking stoves
Subject: Re: [Stoves] dung as fuel..

Andrew,
Not sure what an AD plant is..please elaborate Richard 


On Oct 5, 2014, at 5:58 AM, ajheggie at gmail.com wrote:

[Default] On Sat, 4 Oct 2014 09:17:29 -0700,Richard Stanley
<rstanley at legacyfound.org> wrote:

> I agree Teddy,
> 
> Francis and Mary Kavita devised a simple way of removing the aromatics by
just waking it out the way you clean rice , leaving behind a pretty clean
fibrous mass for creating a good  base matrix for additives in
briquettemaking by the wet process. The tea that driops out in the process
of both cleaning the dung and draining off the briquette during compression
is very useful as fertiliser at the same time.

A couple of points about this: if simply washing out the dissolved minerals
leaves a suitable residue which can be bound in a briquette why cannot an AD
plant do the work for you first? Not that I'm suggesting building an AD
plant but rather that the fibrous waste from this may be used. After all
doesn't an AD plant mimic a rumen?

The other is Anand's statement that ruminant dung is largely lignin,
presumably this depends on how good the rumination has been because in UK
there was a firm that collected sheep dung and washed it to retrieve fibres
which they then used to make high quality paper, which suggests there was a
deal of cellulose left in the dung.

AJH

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