[Stoves] Cleaning Dung

[Frank Shields]

Paul, and stovers,

<snip>

6.  Also, is what is washed from dung better, same, or worse for energy
content than what is left in the washed dung?  This has probably been
studied, but I do not know that answer.  Anybody?


[*] From my dung washing experience (along with compost, AD digestate etc.)
what is real important is how the material is handled. If it is allowed to
pick up dirt and sand (does so very easily) and if that remains on the
screen could greatly lower the energy value. Compost typically has 50% ash
and most of that is dirt and stones. Dung can have much more. 

Also the amount loss during washing depends on what the animal eats and its
digestion system. Cow will mostly get washed out where horse will have a lot
left for use. 

I think handling is most important as to final quality.

Frank


Frank Shields
42 Hangar Way
Watsonville,  CA  95076
(831) 724-5244 tel
(831) 724-3188 fax
frank at biomasslabs.com



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