Table 4.
Carbon and nitrogen balance during composting
| Group | TOC |
TN |
||||||||
| W initial (kg) | W final (kg) | Lossa (%) | CO2-C (kg) | CH4-C (g) | W initial (kg) | W final (kg) | Lossa (%) | NH3-N (g) | N2O-N (g) | |
| CS | 2.89 (0.12) | 1.53 (0.07) | 46.97 | 1.13 (0.03) | 115.91 (0.13) | 160.37 (0.12) | 129.22 (0.07) | 19.42 | 27.36 (0.08) | 1.48 (0.02) |
| SMC | 3.51 (0.11) | 1.69 (0.06) | 51.77 | 1.54 (0.05) | 152.61 (0.10) | 194.84 (0.18) | 173.11 (0.06) | 11.16 | 18.56 (0.09) | 0.68 (0.008) |
| SWD | 3.10 (0.13) | 1.41 (0.08) | 54.40 | 1.51 (0.07) | 33.61 (0.09) | 172.39 (0.09) | 110.86 (0.08) | 35.69 | 56.67 (0.10) | 1.06 (0.009) |
a
Nutrient loss is calculated as (W initial−W final)×100%/W initial
TOC and TN mentioned above are the absolute contents. Values are expressed as the mean (standard error) of triplicates on the dry weight basis