[Stoves] Dung based biogas plant

[rajan_jiby at dataone.in]

>
> Message: 1
> Date: Wed, 8 Dec 2010 01:02:07 +0800
> From: Anand Karve <adkarve at gmail.com>
> To: Discussion of biomass cooking stoves
> <stoves at lists.bioenergylists.org>
> Subject: Re: [Stoves] Stoves Digest, Vol 4, Issue 13
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> <AANLkTik-GCZO5t_as9qgrQuXzFOgXcaDKES=Lo+9BLN6 at mail.gmail.com>
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>

Dear A.D.,

> Transporting the wet slurry from a dung based biogas plant to the field is
> always a bother.

True. But for such a problem, bio-digesters would have been one of the ideal 
solutions for the " bio-degradable waste disposal " in cities ( especially 
in tropical countries ).

>One can allow the slurry to be filtered through a bed
> of straw. The water in the slurry drains out, leaving the relatively dryer
> slurry on the surface of the bed of straw.  The slurry, now devoid of most
> of its water is easier to handle and to transport.

But, will not this water also contain valuable dissolved nutrients ?

May be, the water can be pumped through a pipe, and the concentrated slurry 
carried using other means.

Best Regards,


Rajan