[Stoves] Stoves Digest, Vol 57, Issue 4

Thomas Reed tombreed2010 at gmail.com
Mon May 4 17:13:11 CDT 2015


Dear Anand and All

Leaf liter is certainly a widespread potential source for Biochar.  

Unfortunately, it is typically very wet, so hard to convert.  My first instinct is to dry it by solar heat on a tarp on a sunny, windless day.  As the leaves get drier, they are more and more likely to blow away, so make sure wind is low.  If it comes up unexpectedly, you can fold the tarp over the partially dried leaves until conditions become good.  

That's a lot of fussy attention.

<><><>

Alternatively, put the leaves on a grate in a 33 gal garbage can, and use a hair drier to blow warmed air down from the top.   

Warmed, but not hot or you'll start the reaction accidentally.  

Let me know how it works out.  

Tom Reed

Thomas B Reed 
280 Hardwick Rd
Barre, Ma 01005
508-353-7841

> On May 4, 2015, at 2:00 PM, stoves-request at lists.bioenergylists.org wrote:
> 
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> Today's Topics:
> 
>   1. Re: Sequestering carbon - (Anand Karve)
>   2. Re: Sequestering carbon - (Crispin Pemberton-Pigott)
>   3. Re: Sequestering carbon - (Energies Naturals C.B.)
>   4. Re: Sequestering carbon - (Anand Karve)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Mon, 4 May 2015 08:18:16 +0530
> From: Anand Karve <adkarve at gmail.com>
> To: Discussion of biomass cooking stoves
>    <stoves at lists.bioenergylists.org>
> Subject: Re: [Stoves] Sequestering carbon -
> Message-ID:
>    <CACPy7Sd_GC2XEE4baDvB24BC2J63=w5n42i77a+VzfNiW1++MA at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
> 
> Dear Crispin,
> if non-rotting leaf litter is a problem, one can char it and convert
> it into char  briquettes, to be used as fuel.
> Yours
> A.D.Karve
> ***
> Dr. A.D. Karve
> 
> Chairman, Samuchit Enviro Tech Pvt Ltd (www.samuchit.com)
> 
> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
> 
> 
> On Fri, May 1, 2015 at 8:44 PM, Crispin Pemberton-Pigott
> <crispinpigott at outlook.com> wrote:
>> Dear AD
>> 
>> 
>> 
>> Dr Bill Mollison attributed the non-rotting of pine tree needles on the
>> forest floor in Eastern Mpumalanga to a similar cause: they imported the
>> trees but not the local biome that goes with them.
>> 
>> 
>> 
>> The forests on the Eastern Escarpment of South Africa have as much as 2 feet
>> of accumulated leaf material on the floor which is a terrible fire hazard.
>> There are no local fungi to break the material down.
>> 
>> 
>> 
>> Large mushrooms have been introduced and they grow like crazy, seasonally,
>> and support a large community of workers who harvest them for export. They
>> are located by looking for humps in the smooth bed of needles and uncovering
>> them by hand. They also do this in the western highlands of Swaziland. They
>> are quite valuable.
>> 
>> 
>> 
>> Regards
>> 
>> Crispin
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> Dear Stovers,
>> 
>> 
>> 
>> Some time ago I had expressed the opinion that the formation of mineral coal
>> during the Carboniferous Era was due to the fact that the microbes that
>> could degrade lignin were absent at that time. The fact that the
>> Chernobil-affected trees are also not rotting because of the same reason
>> gives support to my hypothesis.
>> 
>> Yours
>> 
>> A.D.Karve
>> 
>> 
>> _______________________________________________
>> Stoves mailing list
>> 
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>> http://stoves.bioenergylists.org/
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Mon, 4 May 2015 02:42:25 -0400
> From: Crispin Pemberton-Pigott <crispinpigott at outlook.com>
> To: "'Discussion of biomass cooking stoves'"
>    <stoves at lists.bioenergylists.org>
> Subject: Re: [Stoves] Sequestering carbon -
> Message-ID: <COL401-EAS155C7F6CFD0D16216BD220EB1D20 at phx.gbl>
> Content-Type: text/plain; charset="us-ascii"
> 
> Dear Ad
> 
> I completely agree.  Even if it has high ash, it would have value. The value
> of bio-char dust is about 2/3 the value of lump charcoal so there is a
> market for it (making pillow briquettes).
> 
> Thanks
> Crispin
> 
> 
> Dear Crispin,
> if non-rotting leaf litter is a problem, one can char it and convert it into
> char  briquettes, to be used as fuel.
> Yours
> A.D.Karve
> ***
> Dr. A.D. Karve
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Mon, 4 May 2015 11:59:52 +0200
> From: "Energies Naturals C.B." <energiesnaturals at gmx.de>
> To: Discussion of biomass cooking stoves
>    <stoves at lists.bioenergylists.org>
> Subject: Re: [Stoves] Sequestering carbon -
> Message-ID: <20150504115952.71f61a8fc37902498b4b6ba6 at gmx.de>
> Content-Type: text/plain; charset=US-ASCII
> 
> Dear Crispin,
> 
> you mention pillow briquettes out of char dust. Do you have any direct experience with how to make them?
> is there a technical guideline as for pressure needed and most of all the ideal aglomeration additive?
> 
> I have tried to make them, but it is not easy unless I mix them with expensive starch or equally expensive ligno sulfonate
> in quite high concentrations. 
> 
> Thanks for any advice!
> 
> Rolf
> 
> 
> 
> On Mon, 4 May 2015 02:42:25 -0400
> Crispin Pemberton-Pigott <crispinpigott at outlook.com> wrote:
> 
>> Dear Ad
>> 
>> I completely agree.  Even if it has high ash, it would have value. The value
>> of bio-char dust is about 2/3 the value of lump charcoal so there is a
>> market for it (making pillow briquettes).
>> 
>> Thanks
>> Crispin
>> 
>> 
>> Dear Crispin,
>> if non-rotting leaf litter is a problem, one can char it and convert it into
>> char  briquettes, to be used as fuel.
>> Yours
>> A.D.Karve
>> ***
>> Dr. A.D. Karve
>> 
>> _______________________________________________
>> Stoves mailing list
>> 
>> to Send a Message to the list, use the email address
>> stoves at lists.bioenergylists.org
>> 
>> to UNSUBSCRIBE or Change your List Settings use the web page
>> http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org
>> 
>> for more Biomass Cooking Stoves,  News and Information see our web site:
>> http://stoves.bioenergylists.org/
> 
> 
> -- 
> Energies Naturals C.B. <energiesnaturals at gmx.de>
> 
> 
> 
> ------------------------------
> 
> Message: 4
> Date: Mon, 4 May 2015 16:25:31 +0530
> From: Anand Karve <adkarve at gmail.com>
> To: Discussion of biomass cooking stoves
>    <stoves at lists.bioenergylists.org>
> Subject: Re: [Stoves] Sequestering carbon -
> Message-ID:
>    <CACPy7Sd9nW9Pim40_joFfxajC6KyWQU+jV=eUPXvO9=CdLAQkA at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
> 
> Dear Rolf,
> we use flour swept from the floor of a flour mill. We have small flour
> mills all over the city and even in villages. The waste flour is quite
> cheap because it consists of a mixture of wheat, maize, sorghum
> penisetum, millets, legumes and also a bit of dirt. We use 100g flour
> per 1kg char powder, boil the flour in water to make a sticky paste,
> mix it with char powder and extrude the mixture into cylindrical
> briquettes. The briquettes are sun-dried on a plastic film. For small
> scale users, we have made a mold, which makes flat slabs having criss
> cross markings like a chocolate slab. These slabs can be broken by
> hand into smaller squares before using them in a charcoal brazier.
> Yours
> A.D.Karve
> 
>> On 5/4/15, Energies Naturals C.B. <energiesnaturals at gmx.de> wrote:
>> Dear Crispin,
>> 
>> you mention pillow briquettes out of char dust. Do you have any direct
>> experience with how to make them?
>> is there a technical guideline as for pressure needed and most of all the
>> ideal aglomeration additive?
>> 
>> I have tried to make them, but it is not easy unless I mix them with
>> expensive starch or equally expensive ligno sulfonate
>> in quite high concentrations.
>> 
>> Thanks for any advice!
>> 
>> Rolf
>> 
>> 
>> 
>> On Mon, 4 May 2015 02:42:25 -0400
>> Crispin Pemberton-Pigott <crispinpigott at outlook.com> wrote:
>> 
>>> Dear Ad
>>> 
>>> I completely agree.  Even if it has high ash, it would have value. The
>>> value
>>> of bio-char dust is about 2/3 the value of lump charcoal so there is a
>>> market for it (making pillow briquettes).
>>> 
>>> Thanks
>>> Crispin
>>> 
>>> 
>>> Dear Crispin,
>>> if non-rotting leaf litter is a problem, one can char it and convert it
>>> into
>>> char  briquettes, to be used as fuel.
>>> Yours
>>> A.D.Karve
>>> ***
>>> Dr. A.D. Karve
>>> 
>>> _______________________________________________
>>> Stoves mailing list
>>> 
>>> to Send a Message to the list, use the email address
>>> stoves at lists.bioenergylists.org
>>> 
>>> to UNSUBSCRIBE or Change your List Settings use the web page
>>> http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org
>>> 
>>> for more Biomass Cooking Stoves,  News and Information see our web site:
>>> http://stoves.bioenergylists.org/
>> 
>> 
>> --
>> Energies Naturals C.B. <energiesnaturals at gmx.de>
>> 
>> _______________________________________________
>> Stoves mailing list
>> 
>> to Send a Message to the list, use the email address
>> stoves at lists.bioenergylists.org
>> 
>> to UNSUBSCRIBE or Change your List Settings use the web page
>> http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org
>> 
>> for more Biomass Cooking Stoves,  News and Information see our web site:
>> http://stoves.bioenergylists.org/
> 
> 
> -- 
> ***
> Dr. A.D. Karve
> 
> Chairman, Samuchit Enviro Tech Pvt Ltd (www.samuchit.com)
> 
> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
> 
> 
> 
> ------------------------------
> 
> Subject: Digest Footer
> 
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> 
> for more Biomass Cooking Stoves,  News and Information see our web site:
> http://www.bioenergylists.org/
> 
> 
> ------------------------------
> 
> End of Stoves Digest, Vol 57, Issue 4
> *************************************




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