DESIGN, SPECIFICATION, PROCUREMENT AND UNIQUE FEATURES OF AN FGD SYSTEM WITH WET STACK AND WASTE WATER TREATMENT FOR KEYSTONE GENERATING STATION, UNITS 1 AND 2

摘要

Keystone Generating Station is a 2 × 850 MW coal-fired generating station located in PlumCreek Township, Armstrong County, near Shelocta, Pennsylvania. The station is currentlyowned as an undivided interest by seven utilities and is managed and operated by ReliantEnergy. After the FGD system goes into service, the units will burn high-sulfur easternbituminous coal and operate base-loaded with an average annual capacity factor ofapproximately 90%. The FGD system uses limestone slurry to remove SO_2 and in-situ forcedoxidation followed by horizontal belt filters to produce commercial grade gypsum. A wastewater treatment system processes the effluent from the FGD system to remove trace elementsand solids before discharging. The presentation will include unique features of the system anddetails of performance requirements including SO_2 removal, particulate emissions, mercuryremoval, quantity and quality of waste water effluent from the FGD system.