Table 7 Annual cost for the brick reactor
Reactor size (m3) | 3.28 | 7.05 | 15.09 |
|---|---|---|---|
Maintenance operation without a farm | $34.80 | $44.18 | $70.66 |
Maintenance operation with a farm | $259.84 | $396.24 | $558.31 |
Cow dung | $23.83 | $47.65 | $71.48 |
Cost labour | $7.39 | $8.21 | $16.43 |
Total annual costs no cow | $61.55 | $97.27 | $158.74 |
Total annual costs with cow | $37.73 | $49.61 | $87.26 |
Total annual with cow and Small farm | $268.27 | $405.81 | $576.42 |