4 ms·
Isn't the carbon already locked away in the coffee grounds? Why spend energy and hence more CO2 emissions on charring the grounds?
by calmdownpeople 3y ago
Isn't the carbon already locked away in the coffee grounds? Why spend energy and hence more CO2 emissions on charring the grounds?
- mrguyorama 3y agoBecause coffee grounds would actually make terrible aggregate, as complex organic and formerly alive compounds, there's a lot of potential for weird chemical breakdown that could harm the concrete or anything else in the concrete. Char is pretty chemically stable, because carbon is very chemically stable.
- Eldt 3y agoWhere are the grounds going to be stored?
- tedivm 3y agoThe coffee grounds are biodegradable, and that process causes CO2 and methane to be released.
- soperj 3y agoJust to clarify, methane is only released if it biodegraded by anaerobic bacteria, if it's biodegraded by aerobic bacteria it only produces CO2.
- jayd16 3y agoWe could carbonize the biomass then cram it in a landfill and... wait that's just reburying charcoal.
- thfuran 3y agoMy vote is for sequestering carbon as an ever-growing mountain range of diamonds.