Controlling SO/sub 2/ emissions from coal-fired steam-electric generators: water pollution impact. Volume II. Technical discussion. Final task report, April--December 1977
The report gives results of one task in a comprehensive program to review the New Source Performance Standard (NSPS) for SO/sub 2/ emissions from coal-fired steam-electric generating plants. The results compare two alternative standards to the existing NSPS (1.2 lb SO/sub 2//million Btu of heat input): (1) 0.5 lb SO/sub 2//million Btu of heat input, allowing credit (as does the existing NSPS) for physical coal cleaning or use of low sulfur coal; and (2) 90% removal of SO/sub 2/ from stack gases, regardless of original coal sulfur content. The comparisons are in terms of their effect on the quality and quantity of power plant wastewater effluents and on the amount of plant water consumption. Potential effects of SO/sub 2/ control system effluents on the environment are evaluated, and alternative treatment processes are discussed. A total of 108 plant systems were discussed, including combinations of three NSPS, five flue gas desulfurization (FGD) systems, five coal types, four plant sizes, and sulfur removal by coal cleaning. Volumes and quality of wastewater streams varied very little from one alternative NSPS to another; all streams can be treated adequately using commercially available technologies. However, the alternative standards increase total water consumption 8 to 11%, depending on the FGD process used. Physical coal cleaning plus lime/limestone scrubbing increases total water consumed 8 to 12%.
- Research Organization:
- Radian Corp., Austin, TX (USA)
- DOE Contract Number:
- EPA-68-02-2608
- OSTI ID:
- 6613545
- Report Number(s):
- PB-279636
- Country of Publication:
- United States
- Language:
- English
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54 ENVIRONMENTAL SCIENCES
01 COAL, LIGNITE, AND PEAT
FLUE GAS
DESULFURIZATION
FOSSIL-FUEL POWER PLANTS
POLLUTION CONTROL EQUIPMENT
POLLUTION REGULATIONS
SULFUR DIOXIDE
WATER POLLUTION CONTROL
AIR POLLUTION ABATEMENT
COMPARATIVE EVALUATIONS
ENVIRONMENTAL IMPACTS
GASEOUS WASTES
REMOVAL
SCRUBBERS
STACK DISPOSAL
WASTE WATER
WATER QUALITY
WATER REQUIREMENTS
CHALCOGENIDES
CHEMICAL REACTIONS
ENVIRONMENTAL QUALITY
EQUIPMENT
HYDROGEN COMPOUNDS
LIQUID WASTES
MANAGEMENT
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
POLLUTION CONTROL
POWER PLANTS
REGULATIONS
SULFUR COMPOUNDS
SULFUR OXIDES
THERMAL POWER PLANTS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WATER
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
500600 - Environment
Atmospheric- Regulations- (-1989)
520200 - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)
010800 - Coal
Lignite
& Peat- Waste Management
010900 - Coal
Lignite
& Peat- Environmental Aspects