Table 3 in ENVIRONMENTAL IMPACT ASSESSMENT (EIA) OF WORLD BANK FINANCED SIDDHIRGANJ 450 MW COMBINED CYCLE POWER PLANT (CCPP) PROJECT SIDDHIRGANJ, NARAYANGAJ

Table 3 – Performance ł Characteristics of Dust Removal Systems TypePerformance ł CharacteristicsESP•Removal efficiency of>96.5% (<1 μm),>99.95%(>10 μm)•0.1-1.8% of electricity generated is used•It might not work on particulates with very highelectrical resistivity. In these cases, flue gasconditioning (FGC) may improve ESP performance.•Can handle very large gas volume with lowpressure dropsFabric Filter•Removal efficiency of>99.6% (<1 μm),>99.95%(>10 μm). Removes smaller particles than ESPs.•0.2-3% of electricity generated is used•Filter life decreases as coal S content increases•Operating costs go up considerably as the fabricfilter becomes dense to remove more particles•If ash is particularly reactive, it can weaken thefabric and eventually it disintegrates.Wet Scrubber•Removal efficiency of>98.5% (<1 μm),>99.9%(>10 μm)•Up to 3% of electricity generated is used.•As a secondary effect, can remove and absorbgaseous heavy metals•Wastewater needs to be treated