Evaluation of Adsorption Capacity in Water of Coffee Husk-Derived Biochar at Different Pyrolysis Temperatures

Table 1

Productivity efficiency and surface physical chemistry properties of biochar.

t°C	%H			mmolH^+·g^−1	mmolOH^−·g^−1	%TOC	CEC, mmol·kg^−1
300	51, 4^b	7, 59^a	7, 2^a	1, 73^c	11, 17^a	25, 5^c	309^c
SD	0, 8	0, 16	0, 1	0, 11	0, 15	1, 0	11
450	34, 9^a	9, 16^b	8, 2^b	0, 50^b	11, 24^a	10, 4^b	290^b
SD	0, 6	0, 02	0, 0	0, 10	0, 04	0, 3	3
600	30, 7^a	9, 69^c	9, 5^c	0, 17^a	12, 50^b	1, 5^a	266^a
SD	4, 0	0, 02	0, 3	0, 06	0, 04	0, 3	1

^a,b,c in a column illustrate statistically significant differences . SD: standard deviation.