Table 1 Primary properties of biochar.

From: Adsorption of copper(II) in biochar-humic acid–water system

pH

Elemental composition (%)

Elemental ratio

pHpzc

 

C

H

N

S

O

Ash

O/C

H/C

(O + N)/C

9.98

53.60

1.56

0.86

0.76

14.01

29.21

0.26

0.03

0.28

5.08

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