Talk:Biochar Crusher

Rasmus,

Thanks for the wiki contributions. Can you add some info on Pelletized Biochar ?

Our proposed route is continuous charcoal production on a desktop scale by making pellets first, then using them in hydronic stoves to generate heat while producing charcoal in a continuous process. This has great potential for wide adoption because the plant size is reduced significantly, and we'd like to prototype a desktop bioachar maker this year, such that it's a practical part of any home.

MJ

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• On the note of to crush or not to crush, i think it depends on what the goal is:
  • If your goal is Carbon Sequestration / Fill probably not (Although if compacting it a ton, a fine powder may sink less?)
  • If your goal is for it to be mixed into the soil well and upgrade that soil to SABE ( Terra Preta ) a fine powder is probably best
• GRANTED citation needed
• In terms of knowns:
  • "How Permanent is Pyrogenic Carbon in a Live Soil" is one of the big concerns in Biochar as a Means of Carbon Sequestration , uncertain on the current state of the art on that
  • Surface Area is your Friend*
    • Only unknow of this is what role coarse debris/rocks would play in a Soil
    • Might help stabilize soil/prevent erosion, also do larger chunks hold onto water better?
    • The ORIGINAL Amazonian Black Earth Soils also had Terra Cotta / Pottery Sherds so that may be a relevant piece of the puzzle, not powderized charcoal
• Ways to go about it all:
  • Pre-Grinding of Waste via a In-Sink Wet Waste Grinder
  • Post-Grinding in a Yard Waste Grinder / Consumer Level Electric Woodchipper (Coarser Grind, but low complexity+maintainance concerns)
  • Post-Grinding via a Hammermill (Especially with higher Air Classifier integrated models can produce a very fine, consistent mix. Bit of a maintenance / Combustible Dust Explosion + Fugitive Dust Emissions concern
    • Also unlike other methods could probably NOT handle Wet Charcoal well due to clumping/clogging concerns
  • Post-Grinding in a Ball Mill
    • Would probably have to be in a Batch Configuration, and is LOUD, but could be done with Wet Charcoal and get to any desired Particle Size

--Eric (talk) 22:53, 12 October 2025 (UTC)