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Estimated cost of carbon source for nitrate removal.
| Substance material | Denitrification rate (g N/(L d)) | Consumption of substrate (kg/kg N) | Price (CNY/kg) | Nitrogen removal costs (CNY/kg N) | Reference |
|---|---|---|---|---|---|
| PBS/BP | 0.63–0.8 | 2.46 | 12.8 | 31.49 | This study |
| PBS | 0.53–0.66 | 2.11 | 24.8 | 52.33 | (Zhu et al.21) |
| PHBV/BP | 0.13 | 1.69–1.86 | 15.5 | 26.2–28.8 | (Chu and Wang, 2016) |
| PCL | 2.65 | 2.34 | 68 | 159.1 | (Li et al.33) |
