Table 3. Effects of temperature on total ammonia content in anaerobic co-digestion with a C/N ratio of 25.
| Temperature (°C) | DM+RS | CM+RS | DM+CM+RS | |||
| a Average | Final | Average | Final | Average | Final | |
| 20 | 182.3±3.9 | 229.3±4.8 | 495.2±7.2 | 532±9.2 | 477±8.3 | 521±1.88 |
| 30 | 260.2±5.8 | 518.5±8.5 | 552.5±2.0 | 674±14.3 | 531±10.2 | 778±12.8 |
| 40 | 421.2±7.5 | 772.7±13.4 | 768.4±12.6 | 995±22.2 | 737±10.7 | 921±17.7 |
| 50 | 541.5±9.4 | 968.6±18.7 | 938.3±14.8 | 1261±18.3 | 869±3.1 | 1116±16.3 |
| 60 | 593.6±11.4 | 1052.4±18.8 | 951.8±12.5 | 1201±4.8 | 906±14.9 | 1256±20.6 |
| bLSD0.05 = 52.6 cLSD0.05 = 81.9 | ||||||
a
±shows the standard error
b
LSD value at the 5% level based on all average values from three mixture sets at all operation temperatures
c
LSD value at the 5% level based on all final values from three mixture sets at all operation temperatures.