Elemental content analysis of TW.
| Raw materials | Element content | ||
|---|---|---|---|
| C (%) | N (%) | C/N (%) | |
| Tobacco waste | 37.20 ± 0.092 | 3.30 ± 0.021 | 11.26 ± 0.05 |
| Sludge | 36.51 ± 0.08 | 0.74 ± 0.01 | 49.33 ± 0.045 |
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