WOW
Look at this site!
http://www.energy.gatech.edu/presentations/dday.pdf
Lots of pretty pictures
Lots of fascinating graphs
Lots of biomass-hydrogen designs (Which I don't understand)
It took me an age to download (I don't have broadband but it was worth it)
Just for the picture of the sick tree that was fixed in 6 mths with charcoal !. Great stuff
Some quotes:
Other charcoal benefits
• Surface oxidation of the char increased the cation exchange capacity (Glaser)
(er. . . what is "cation exchange capacity"-m)
• Char increased available water holding capacity by more than 18% of
surrounding soils (Glaser)
(my question in my last post answered-m)
• Char experiments have shown up to 266% more biomass growth (2nd Yr
Steiner) and 324% (Kishimoto and Sugiura)
• Plant nitrogen uptake doubled in charcoal amended soils (Steiner)
• Charcoal has proven to help reduce farm chemical runoff (Yelverton)
Smoke from smoldering fires represents lost energy that can produce hydrogen.--�� A sustainable hydrogen supply cannot be separated from agriculture as it forms a key link to delivered soil nitrogen��
Under modern agriculture, hydrogen is used to make ammonia fertilizer which is used for food production.
(i.e. Hydrogen=Food)
Asada reported that Asada reported that carboxyl acid groups formations natural to low
temperature charcoal (below 500 C) bind ammonia exceptionally well
Chars were produced at 900, 600, 500, 450, and 400C.
�� Crushed and sieved to #30 mesh, wt 20g.
�� Soaked 5 min. in 48% NH4NO3 solution.
�� Each rinse = 100 ml water 8.0 pH
Most stabilized after a few rinses
But chars produced 400 C very gradually released its ammonia
Michael
