Table 4
Unit costs of disintegration and nitrogen removal with disintegrated sludge as a carbon source under different levels of energy density
| Specification | Energy density [kJ/L] | |||
|---|---|---|---|---|
| 70 | 140 | 210 | ||
Cost of the disintegration  [EUR/m3] | 1.55 | 3.10 | 4.65 | |
Unit cost of nitrogen removal  [EUR/g N] | min. | 0.0016 | 0.0013 | 0.0022 |
| max. | 0.0037 | 0.0028 | 0.0028 | |
| average | 0.0026 | 0.0019 | 0.0025 | |
| standard deviation | 0.0015 | 0.0011 | 0.0004 | |
| Number of tests | 9 | 9 | 9 | |
| Specification | Energy density [kJ/L] | |||
|---|---|---|---|---|
| 70 | 140 | 210 | ||
| Cost of the disintegration [EUR/m3] | 1.55 | 3.10 | 4.65 | |
| Unit cost of nitrogen removal [EUR/g N] | min. | 0.0016 | 0.0013 | 0.0022 |
| max. | 0.0037 | 0.0028 | 0.0028 | |
| average | 0.0026 | 0.0019 | 0.0025 | |
| standard deviation | 0.0015 | 0.0011 | 0.0004 | |
| Number of tests | 9 | 9 | 9 | |