[Stoves] Cleaning Dung

[Kevin]

Dear Richard
  ----- Original Message ----- 
  From: Richard Stanley 
  To: Discussion of biomass cooking stoves 
  Cc: Discussion of biomass cooking stoves 
  Sent: Friday, February 10, 2012 1:56 PM
  Subject: Re: [Stoves] Cleaning Dung


  Greetings Kevin ,
  One correction re washing -at least-fibrous dung. The fibers that would remain ARE thee binder. The rest is infilling hopefully carbon rich 'heat -extractable' material.

  # OK!! Thanks for the "good news." I was concerned that perhaps the fibres remaning after digestion would be relatively smooth, and without the leached componts to act as "sticker stuff", binders would be reduced or absent. 

  Best wishes,

  Kevin

  Kind regards,
  Richard

  Sent from my iPhone

  On Feb 10, 2012, at 9:52, "Kevin" <kchisholm at ca.inter.net> wrote:


    Dear Boston
      ----- Original Message ----- 
      From: Boston Nyer 
      To: Discussion of biomass cooking stoves 
      Sent: Friday, February 10, 2012 11:06 AM
      Subject: [Stoves] Cleaning Dung


      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?  

      # I've never done it, but I think it is a good idea, requiring further development work. Big thing is to have use for the "wash water". 

      # Simplest thing would be to slurry the Manure/dung to remove solubles. Solubles could be simply decanted, or the remaining pulp could be filter pressed to get a drier cake.

      # Removal of the soluble protein, salts and micronutrients should allow the remaining fibre to be dried easier, to have a higher calorific value, and to burn safer, with less risk of dioxin formation. Washed dung could be briquetted in a simple press, but the washing process would probably remove the natural "binders", and thus a binder of some sort may have to be added. Richard Stanley has done a lot of work on manufacturing fuel briquettes from various locally available biomass feeds

      # On the one hand, the "dung wash water" could make an excellent "Fertigation Feed." On the other hand, depending on dung source, soil type, local rainfall, crop being grown, intensity of use, etc, there may be a problem with salt buildup in the soil.

      Best wishes, 

      Kevin Chisholm


      Thank you!
      Boston



      -- 
      Boston 
      Skype: BostonNyer
      Cell: (585) 503-3459

      www.burndesignlab.org




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