EADS meets the most stringent air quality regulations in the world at significantly lower lifecycle cost than conventional FGD systems. The EADS generates no wastewater or solid waste streams, while generating a saleable ammonium sulfate fertilizer by-product. The EADS also does not require the addition of water treatment chemicals, such as soda ash or lime used in conventional FGD wastewater treatment. This reduces the operating and environmental compliance costs of the EADS.
Performance
| British Unit | Metric Unit | |
|---|---|---|
| SO2 Emissions | ≤ 12 PPM | ≤ 35 mg/Nm3 |
| Particulate Matter Emissions | ≤ 0.3 lb/MMSCF | ≤ 5 mg/Nm3 |
| Ammonia Slip | ≤ 4 PPM | ≤ 3 mg/Nm3 |
| Ammonia Recovery Rate | ≥ 99.9% | |
Comparison Between Limestone & EADS
| Limestone Process | EADS | |
|---|---|---|
| Absorbent | Limestone | Ammonia |
| By-Product | Gypsum | Ammonia Sulfate Fertilizer |
| SO2 Removal Efficiency | ≥ 95% | ≥ 99% |
| Waste Water | 25 kg/hr /MW | None |
| CO2 Emissions | 0.7 t/t SO2 Removed | None |
| Operating Cost | 15 millions /1000 MW per year | Profits: 5~15 millions/ 1000 MW per year |
