Monday, August 25, 2008

Biochar

For purposes of this discussion Biochar is a type of charcoal that when added to soil can promote plant growth in many ways. It remains in the soil for many years.



Normal burning (with oxygen) produces CO2. Natural decay of plants releases CO2 slowly (but if your composting at least you get something out of it). Pyrolysis (making biochar/heating in the absence of oxygen) release significantly less CO2, dramatically decreases slow CO2 releases, and provides additional benefits when added to soil.



You could go out get a metal barrel and make your own. This is a alternative if the smoke and soot generated will not bother the neighbours.



There are several more complicated methods of Pyrolysis.



Locally we need to find and select and select a process that balances:


  • low emissions (no soot or toxins)

  • favors biochar over syngas and bio-oil

  • is flexible for highly varying inputs

Any extra syngas and bio-oil needs to be used. A possible interested party would be Duke Energy who has experience with syngas and has an oil generator locally.


Local sources of biomass:

This change should be compared to the current composting of biomass performed locally by Rumpke (who also has experience in selling syngas)

1 comment:

Erich J. Knight said...

Biochar, the modern version of Terra Preta Soils a process for Carbon Negative Bio fuels and massive Carbon sequestration,is gaining widespread credibility as a way to address world hunger, climate change, rural poverty, deforestation, and energy shortages… SIMULTANEOUSLY!

This technology represents the most comprehensive, low cost, and productive approach to long term stewardship and sus10X Lower Methane & N2O soil emissions, and 3X Fertility Too. Every 1 ton of Biomass yields 1/3 ton Charcoal for soil Sequestration.

Indeed, Dr. James Hansen, NASA's top Atmospheric authority, is now placing it in the center stage of pro-active solutions for the climate crisis.

http://arxiv.org/ftp/arxiv/papers/0804/0804.1126.pdf

I hope you will come to share my passion in getting the word out on the wonderful solutions provided by TP soils.
I'm sort of the TP list (and data base at REPP-CREST) cub reporter, most all my list postings, under shengar@aol.com, are news items, collaborative work, lobbying efforts with government, writers and journals.
http://terrapreta.bioenergylists.org/?q=node

The new Yahoo Biochar discussion group;

http://tech.groups.yahoo.com/group/b...guid=122501696




Thanks for your interest

Cheers,
Erich


the current news and links on Terra Preta (TP) soils and closed-loop pyrolysis of Biomass, this integrated virtuous cycle could sequester 100s of Billions of tons of carbon to the soils.

This technology represents the most comprehensive, low cost, and productive approach to long term stewardship and sustainability.Terra Preta Soils a process for Carbon Negative Bio fuels, massive Carbon sequestration, 10X Lower CH4 & N2O soil emissions, and 3X Fertility Too.
Indeed, Dr. James Hansen, NASA's top Atmospheric authority, is now placing it in the center stage of pro-active solutions for the climate cris

Where Food Begins , National Geographic Magazine, Sept 08.
By Charles Mann (author of "1491")
(The Combined English and other language circulation of NGM is nearly nine million monthly with more than fifty million readers monthly! )
http://ngm.nationalgeographic.com/2008/09/soil/mann-text


UN Climate Change Conference: Biochar present at the Bali Conference

http://terrapreta.bioenergylists.org/steinerbalinov2107



SCIAM Article May 15 07;

http://www.sciam.com/article.cfm?articleID=5670236C-E7F2-99DF-3E2163B9FB144E40



After many years of reviewing solutions to anthropogenic global warming (AGW) I believe this technology can manage Carbon for the greatest collective benefit at the lowest economic price, on vast scales. It just needs to be seen by ethical globally minded companies.

Could you please consider looking for a champion for this orphaned Terra Preta Carbon Soil Technology.

The main hurtle now is to change the current perspective held by the IPCC that the soil carbon cycle is a wash, to one in which soil can be used as a massive and ubiquitous Carbon sink via Charcoal. Below are the first concrete steps in that direction;

S.1884 – The Salazar Harvesting Energy Act of 2007

A Summary of Biochar Provisions in S.1884:

Carbon-Negative Biomass Energy and Soil Quality Initiative

for the 2007 Farm Bill

http://www.biochar-international.org/newinformationevents/newlegislation.html

Bolstering Biomass and Biochar development: In the 2007 Farm Bill, Senator Salazar was able to include $500 million for biomass research and development and for competitive grants to develop the technologies and processes necessary for the commercial production of biofuels and bio-based products. Biomass is an organic material, usually referring to plant matter or animal waste. Using biomass for energy can reduce waste and air pollution. Biochar is a byproduct of producing energy from biomass. As a soil treatment, it enhances the ability of soil to capture and retain carbon dioxide.

( Update; In conference the $500 M was cut to $3M....:( :( :( )


Tackling Climate Change in the U.S.
Potential Carbon Emissions Reductions from Biomass by 2030by Ralph P. Overend, Ph.D. and Anelia Milbrandt
National Renewable Energy Laboratory

http://www.ases.org/climatechange/toc/07_biomass.pdf

The organization 25x25 released it's (first-ever, 55-page )"Action Plan" ; see; http://www.25x25.org/storage/25x25/documents/IP%20Documents/ActionPlanFinalWEB_04-19-07.pdf
On page 29 , as one of four foci for recommended RD&D, the plan lists: "The development of biochar, animal agriculture residues and other non-fossil fuel based fertilizers, toward the end of integrating energy production with enhanced soil quality and carbon sequestration."
and on p 32, recommended as part of an expanded database aspect of infrastructure: "Information on the application of carbon as fertilizer and existing carbon credit trading systems."

I feel 25x25 is now the premier US advocacy organization for all forms of renewable energy, but way out in front on biomass topics.



There are 24 billion tons of carbon controlled by man in his agriculture and waste stream, all that farm & cellulose waste which is now dumped to rot or digested or combusted and ultimately returned to the atmosphere as GHG should be returned to the Soil.