Biochar from maize stalks, bamboo, etc... Easy top down burn
K McLean
Produced quality biochar.
Had a high yield of 25% char
Was nearly smokeless.
Could be a game-changer in Malawi
Michael Hayes
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Tom Goreau
Serious Biochar kiln builders are sure to trap all the volatile gases and liquids to make “liquid smoke”, a great fertilizer long traditionally used in Japan.
Thomas J. F. Goreau, PhD
President, Global Coral Reef Alliance
Chief Scientist, Blue Regeneration SL
President, Biorock Technology Inc.
Technical Advisor, Blue Guardians Programme, SIDS DOCK
37 Pleasant Street, Cambridge, MA 02139
gor...@globalcoral.org
www.globalcoral.org
Skype: tomgoreau
Tel: (1) 617-864-4226 (leave message)
Books:
Geotherapy: Innovative Methods of Soil Fertility Restoration, Carbon Sequestration, and Reversing CO2 Increase
http://www.crcpress.com/product/isbn/9781466595392
Innovative Methods of Marine Ecosystem Restoration
http://www.crcpress.com/product/isbn/9781466557734
No one can change the past, everybody can change the future
It’s much later than we think, especially if we don’t think
Those with their heads in the sand will see the light when global warming and sea level rise wash the beach away
Geotherapy: Regenerating ecosystem services to reverse climate change
From: <carbondiox...@googlegroups.com> on behalf of Michael Hayes <electro...@gmail.com>
Date: Saturday, May 13, 2023 at 2:00 PM
To: K McLean <kmcl...@gmail.com>
Cc: Carbon Dioxide Removal <carbondiox...@googlegroups.com>
Subject: Re: [CDR] Biochar from maize stalks, bamboo, etc... Easy top down burn
A Hydrogen/Carbon Value Shift:
Using forest/crop kilns can be expensive, yet they can offer more advantages than open burns. Such as, biomass smoke has a rather large amount of H2 as well as CO2 and that gas mix can likely support a form of tank-based aquaculture. Below is a current style of forest kiln that can likeky be upgraded to capture the syngas.
A Tank-based Aquaculture Option: Chemosynthetic Biomass and New Water:
Chemosynthetic cultivation of microalgae consumes H2/CO2 while producing biomass and new H20. Converting biomass smoke into new water, new food/feed Biochar/fertilizer etc. supplies should have a strong C math for those that have seasonal biomass available.
Water can last indefinitely, wood smoke likely will not. Converting the later into the prior adds longterm value to the biomass. Producing new water, Biochar, food/feed etc. on a vast scale can be technically linked to the seasonal need to burn crop residues and/or reduce forest floor fuel.
Best regards
On Sat, May 13, 2023, 9:24 AM K McLean <kmcl...@gmail.com> wrote:
Biochar can easily be made from many fuels using the top down burn method. Light the top of a pile and quench the embers when the fire burns down.
African farmers typically burn their maize stalks by lighting a pile on the side. (Pile on the left in the video.) The maize stalks explode into smoke and burn to ash. We train farmers to light the pile on top, instead. (Pile on the right.) Almost no smoke! They shovel dirt to smother the embers and make biochar. Water works, too. It's that easy.
This method works well with many fuels such as rice straw, cassava stems, bagasse .... Here is a photo of a pile of bamboo with criss crossing layers. This is much simpler than traditional kilns.
Some of you know Christa Roth. She analysed this method of making biochar from maize stalks in Malawi. Among her conclusions:
- Produced quality biochar.
- Had a high yield of 25% char
- Was nearly smokeless.
- Could be a game-changer in Malawi
Especially in developing countries, this can be an exceptionally easy way to make biochar.
Kevin McLean
Sun24
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Tom Goreau
This important video shows that subsistence farmers in Malawi can use one crop of corn residues to produce biochar to fertilize three times the area the following year, using extremely simple and cheap technology.
https://drive.google.com/file/d/1dOPWOKMysvNqko2GJfd4P6a09t155D_M/view
Far better biochar, and farm, yields are possible with more sophisticated (and expensive) kilns that optimize temperature, pressure, and trapping of volatile liquids and gases into Biochar “vinegar”.
Thomas J. F. Goreau, PhD
President, Global Coral Reef Alliance
Chief Scientist, Blue Regeneration SL
President, Biorock Technology Inc.
Technical Advisor, Blue Guardians Programme, SIDS DOCK
37 Pleasant Street, Cambridge, MA 02139
gor...@globalcoral.org
www.globalcoral.org
Skype: tomgoreau
Tel: (1) 617-864-4226 (leave message)
Books:
Geotherapy: Innovative Methods of Soil Fertility Restoration, Carbon Sequestration, and Reversing CO2 Increase
http://www.crcpress.com/product/isbn/9781466595392
Innovative Methods of Marine Ecosystem Restoration
http://www.crcpress.com/product/isbn/9781466557734
No one can change the past, everybody can change the future
It’s much later than we think, especially if we don’t think
Those with their heads in the sand will see the light when global warming and sea level rise wash the beach away
Geotherapy: Regenerating ecosystem services to reverse climate change
From: <carbondiox...@googlegroups.com> on behalf of K McLean <kmcl...@gmail.com>
Date: Saturday, May 13, 2023 at 12:24 PM
To: Carbon Dioxide Removal <carbondiox...@googlegroups.com>
Subject: [CDR] Biochar from maize stalks, bamboo, etc... Easy top down burn
Biochar can easily be made from many fuels using the top down burn method. Light the top of a pile and quench the embers when the fire burns down.
African farmers typically burn their maize stalks by lighting a pile on the side. (Pile on the left in the video.) The maize stalks explode into smoke and burn to ash. We train farmers to light the pile on top, instead. (Pile on the right.) Almost no smoke! They shovel dirt to smother the embers and make biochar. Water works, too. It's that easy.
This method works well with many fuels such as rice straw, cassava stems, bagasse .... Here is a photo of a pile of bamboo with criss crossing layers. This is much simpler than traditional kilns.
Some of you know Christa Roth. She analysed this method of making biochar from maize stalks in Malawi. Among her conclusions:
- Produced quality biochar.
- Had a high yield of 25% char
- Was nearly smokeless.
- Could be a game-changer in Malawi
Especially in developing countries, this can be an exceptionally easy way to make biochar.
Kevin McLean
Sun24
--
Anderson, Paul
Tom G. and all,
“Serious biochar kiln makers” (including myself) can certainly set aside the objective to trap all the volatile gases and liquids to make “liquid smoke”,..
Such objectives can add substantial costs and assume that there are market.
Objectives can include:
1. Just the biochar (and its benefits for CDR)
2. Just the biochar (and its benefits for soils and food production) (and there are other uses of the chars)
3. Removal of excessive or pest biomass
4. Heat
Nice if trapping volatiles and liquids can also be accomplished with some equipment and some costs, but certainly not required to qualify as being “serious.” The vendors of big expensive equipment would like to advocate for capture of vapors and liquids.
To help all readers appreciate biochar (especially for CDR efforts), further valuable info about biochar is in my white paper “Climate Intervention with Biochar” (Dec. 2020) and expansion in the “Roadmap for …..” (Feb 2023) at www.woodgas.com/resources
Paul
Doc / Dr TLUD / Paul S. Anderson, PhD
Email: psan...@ilstu.edu Skype: paultlud Mobile & WhatsApp: 309-531-4434
Website: https://woodgas.com see Resources page for 2023 “Roadmap for Climate Intervention with Biochar” and 2020 white paper, 2) RoCC kilns, and 3) TLUD stove technology.
From: carbondiox...@googlegroups.com <carbondiox...@googlegroups.com>
On Behalf Of Tom Goreau
Sent: Saturday, May 13, 2023 1:07 PM
To: Michael Hayes <electro...@gmail.com>; K McLean <kmcl...@gmail.com>
Cc: Carbon Dioxide Removal <carbondiox...@googlegroups.com>
Subject: Re: [CDR] Biochar from maize stalks, bamboo, etc... Easy top down burn
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