The pyrolysis temperature parameter had shown a
more significant influence on the biochar yield as
compared to the heating rate parameter. The lower
temperature and heating rates produced more weight
percentage of biochar yield from both cassava wastes.
The highest biochar yield for both the CS and CR
were obtained at a temperature of 400C and a heating
rate of 5 C/min. The biochar yield from CR was more
affected by the heating rate parameter compared to CS
that nearly had no substantial effect. The increased in
temperature and heating rate raised the fixed carbon
content in the biochar for both CS and CR biochar.
The higher pyrolysis temperature increased more fixed
carbon in the biochar as compared to the higher
heating rate. The fixed carbon content in the derived
biochar was much higher compared to their raw
feedstock. The maximum fixed carbon content for
both CS and CR biochar was obtained at the pyrolysis
temperature of 600 C and at a heating rate of 5C/min.
Cassava wastes biochar are suitable for carbon
sequestration.