Very interesting question Steven. That way , using indicator plants could be many that can serve as an enruched feedstock for biochar but it remains to seen , to what an extent , such extra nutrients are recovered through final product biochar after anerobic pyrolysis...

Very interesting question Steven. That way , using indicator plants could be many that can serve as an enruched feedstock for biochar but it remains to seen , to what an extent , such extra nutrients are recovered through final product biochar after anerobic pyrolysis...

As to me there is no as such purest organic feedstock for biochar, but biomass organic feedstock is the best and biochar is defined nowadays on the basis of having biomass feedstock. One of the quest in the present day research is to find biomass feedstock which gives a better yield and improves soil properties.

Biochar has a long history of production and use as soil amendment (several thousand years). Traditionally woody feed-stocks produce higher char yields.

this link is useful

https://www.omicsonline.org/.../benefits-of-biochar-on-the-agricultur...

regards

Any sort of matter originated from plants. Hard wood gives better yield of biochar due to high C content.

https://www.omicsonline.org/open-access/benefits-of-biochar-on-the-agriculture-and-environment--a-review-2380-2391-1000207.php?aid=93939

I agree with Prof. Anoop.

Following

I'm not sure what you mean by 'pure'? Our experience is similar to others' comments here. Generally because we make our own chars in a large retort, our lignocellulose or hemicellulose PyCs are replicable by others if HTT and other factors are similar (independent of the pyrolator). Expect high C from either type (e.g., red oak or OCC) and good O/C ratios. We find Ca is all over the place, for example, both before and after blending with a variety of low clay soils. Our research has turned in several directions including the use of the PyCs in decontamination studies.

Hi Jeff, as I mentioned in the explanation, the one with the highest CNOH levels to the exclusion of all other elements.

Thanks,

-Steve

Biochar quality may vary with pyrolysis temperature and conditions, specially on pH.