| 样品名称 | 重金属含量/(mg·kg−1) | |||||
| Zn | Cu | Cr | Pb | Ni | Cd | |
| 污泥原样 | 1729.80 | 111.83 | 94.25 | 50.08 | 30.92 | 1.22 |
| 污泥炭样 | 2602.93 | 169.94 | 142.90 | 78.54 | 49.31 | 2.01 |
| 共热解生物炭(3∶1) | 2049.81 | 133.48 | 159.54 | 61.00 | 52.60 | 1.69 |
| 共热解生物炭(1∶1) | 1371.94 | 91.07 | 166.98 | 41.21 | 55.71 | 1.65 |
| 共热解生物炭(1∶3) | 825.55 | 54.86 | 171.80 | 25.76 | 58.31 | 1.51 |
| 沼渣炭样 | 350.48 | 30.14 | 189.87 | 11.71 | 63.02 | 1.50 |