Table 2 Basic physicochemical properties of two types of activated carbon.
Property index | Available nitrogen/(mg/kg) | Available potassium/(mg/kg) | Available phosphorus/(mg/kg) | Stacking density/(g/cm3) | Carbon content/(%) | Ash content/(%) | Specific surface area/(m2/g) | CEC (cmol/kg) | pH |
|---|---|---|---|---|---|---|---|---|---|
Wood activated carbon | 151.21 | 175.73 | 97.48 | 0.54 | 71.9 | 15.8 | 78.11 | 12.31 | 8.31 |
Mineral activated carbon | 135.18 | 112.44 | 69.12 | 0.62 | 62.7 | 20.7 | 23.36 | 22.12 | 9.37 |
