I recently viewed a documentary on Planet Green channel
which examined four separate proposals for future waste disposal

Bio-Carb was the winner hands down

It uses an ancient Inca "black soil" fertilization system once employed in the Amazon
which burns bio-mass in a low oxygen oven and produces carbon pellets
as a well as a relatively clean gas bi-product for energy production
the pellets enrich soil and create 50% greater yield than other fertilizers

My research foundation is interested in finding out if any bio-carb ovens
or instructions how to make and operate one are available

Please let me know