|
Inputs
|
Units/ha
|
Cost/ha (2003 dollars)
|
|---|
|
C02 (at $0.4706/kg)*
|
246,400 kg
|
115,956
|
|
N, as NH3 (at $0.25/kg)
|
5,936 kg
|
1,484
|
|
P, as Superphosphate (at $0.90/kg)
|
560 kg
|
504
|
|
Fe, as FeSO4 (at $0.50/kg)
|
560 kg
|
280
|
|
Flocculant (at $5/kg)
|
224 kg
|
1,120
|
|
Power (at $0.05883/kW h)
| | |
|
Mixing
|
10,729 kWh
|
631
|
|
1 Harvesting
|
1,771 kWh
|
104
|
|
2 Harvesting
|
5,729 kWh
|
337
|
|
Water Supply
|
8,750 kWh
|
515
|
|
Nutrient Supply
|
521 kWh
|
31
|
|
Buildings
|
1,042 kWh
|
61
|
|
Other
| | |
|
Salt Disposal (at $0.067/kg)
|
168,000 kg
|
11,256
|
|
Maintenance
| |
511
|
|
Labor
| |
562
|
|
Capital costs (Table 7)
| |
14,417
|
|
Total yearly operating costs
| |
147,769
|
|
Biomass costs ($/t)
| |
1,319
|
- *Cost per unit was $0.035/kg in original report
