[Stoves] Stoves Digest, Vol 4, Issue 13

[Kevin]

Dear AD
  ----- Original Message ----- 
  From: Anand Karve 
  To: Discussion of biomass cooking stoves 
  Sent: Tuesday, December 07, 2010 1:02 PM
  Subject: Re: [Stoves] Stoves Digest, Vol 4, Issue 13


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

  # OK!! Do you think it might be possible to briquette the drained anaerobic residue ands a fuel or pellet? Does such residue have greater as an agricultural supplement than as a potential fuel? 
  Best wishes,

  Kevin Chisholm

  Yours
  A.D.Karve

  On Tue, Dec 7, 2010 at 11:58 PM, Kevin <kchisholm at ca.inter.net> wrote:

    Dear Rajan
    ----- Original Message ----- From: <rajan_jiby at dataone.in>
    To: "Kevin" <kchisholm at ca.inter.net>; "Discussion of biomass cooking stoves" <>>>


      Dear Kevin,

      Well, we also use biogas plants where animal dung is a major feedstock.

      Here the energy part comes out as methane ( which is used as fuel ) and the slurry from the plant contains all the nutrients ( without any loss ).


    I have no experience with biogas plants run on animal manure. Is the slurry from a biogas plant filterable? If so, would it potentially make a fuel equivalent or superior to dung that was burned directly, with no washing?

    As I understand it, Richard Stanley uses a retting process on biomass, to develop binding characteristics for his holey briquette feed. Would the drained solids from a biodigester perhaps have better "binder characteristics than freshly washed dung? Perhaps Righard has already explored this avenue?

    Best wishes,

    Kevin




      Best Regards,


      Rajan





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  -- 
  ***
  Dr. A.D. Karve
  President, Appropriate Rural Technology Institute (ARTI)

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