4 ms·

Biochar is also intensive and only converts a relatively small amount of that carbon into stable charcoal.

• westurner 4y ago
  Hemp is compostable, though because it's so tough, shredding and waiting for it to compost trades (vertical) space & time for far less energy use than biocharification unless it's waste heat from a different process. Bioenergy with carbon capture and storage (BECCS) > Biomass feedstocks doesn't have a pivot table of conversion efficiencies?: https://en.wikipedia.org/wiki/Bioenergy_with_carbon_capture_and_storage#Biomass_feedstocks https://en.wikipedia.org/wiki/Bioenergy_with_carbon_capture_... : > Biomass sources used in BECCS include agricultural residues & waste, forestry residue & waste, industrial & municipal wastes, and energy crops specifically grown for use as fuel. Current BECCS projects capture CO2 from ethanol bio-refinery plants and municipal solid waste (MSW) recycling center. > A variety of challenges must be faced to ensure that biomass-based carbon capture is feasible and carbon neutral. Biomass stocks require availability of water and fertilizer inputs, which themselves exist at a nexus of environmental challenges in terms of resource disruption, conflict, and fertilizer runoff. If you keep taking hemp off a field without leaving some down, you'll probably need fertilizer (see: KNF, JADAM,) and/or soil amendments to be able to rotate something else through; though it's true that hemp grows without fertilizer. > A second major challenge is logistical: bulky biomass products require transportation to geographical features that enable sequestration. [27] Or more local facilities
  • quixoticelixer- 4y ago
    Composting oxidizes a lot of the carbon. And since you have to replant, harvest and fertilise everyyear it is a lot more intensive than forestry where you do that ever 30 (15-100) years