Research Article
High-Added Value Materials Production from OMW: A Technical and Economical Optimization
Table 3
Operational costs for an OMW treatment unit of 50,000 t/yr capacity.
| | Operational cost | Euro/yr |
| | Feedstock, cleaning chemicals (114 /day) | 30,200 | | Energy (UF: 260 kW, RO: 90 kW) (29.7 /hr) | 149,700 | | Labor costs | 329,000 | | (4) Maintenance (0.05 * C) | 67,250 | | (5) Administration costs (usually 50% labor costs) | 274,000 | | (6) Insurance (establishment and products) [1% * C] | 13,450 | | (7) Depreciation (linear depreciation zero residual value) | 148,300 | | (8) Interest [0.05 * C] | 67,250 | | (9) General costs | 63,750 | | Operational cost before taxes (OC′) | 1,142,900 | | (10) Taxes (T) [0.4 * (R-OC′)] | 392,840 | | Operational cost after taxes (OC′′) | 1,535,740 |
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