Evaluation of Chiyoda Thoroughbred 121 FGD process and gypsum stacking. Volume 3. Addendum. Final report
As a continuing part of the field evaluation of the Chiyoda Thoroughbred 121 (CT-121) flue gas desulfurization (FGD) gypsum stack at the Scholz Electric Generating Station of Gulf Power Company in Sneads, Florida, the stack and disposal area were monitored after shutdown of the FGD system for a one-year period beginning June 1979. The objectives of the study were to establish whether long-term changes occur in the geotechnical properties of stacked CT-121 FGD gypsum and to evaluate any changes in groundwater quality. Results are presented for geotechnical laboratory testing and visual inspections of CT-121 FGD gypsum from the stack. These tests results indicate no measurable long-term change in shear strength or permeability. Visual inspection of the stack found no significant change in the overall appearance or stability, further confirming the feasibility of utilizing stacking for permanent disposal of CT-121 FGD gypsum. Water quality results obtained after the one-year monitoring period are also presented. With the exception of two downstream monitoring wells, water quality in the aquifers near the disposal area has either remained unchanged or has improved slightly since shutdown of the FGD system.
- Research Organization:
- Ardaman and Associates, Inc., Orlando, FL (USA)
- OSTI ID:
- 6859947
- Report Number(s):
- EPRI-CS-1579(Vol.3)(Add.)
- Country of Publication:
- United States
- Language:
- English
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ALKALINE EARTH METAL COMPOUNDS
AQUIFERS
CALCIUM COMPOUNDS
CALCIUM SULFATES
CHEMICAL REACTIONS
DESULFURIZATION
ENVIRONMENTAL QUALITY
FLORIDA
FLUE GAS
FOSSIL-FUEL POWER PLANTS
GASEOUS WASTES
GYPSUM
MANAGEMENT
MECHANICAL PROPERTIES
MINERALS
MONITORING
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OXYGEN COMPOUNDS
PERMEABILITY
POWER PLANTS
SHEAR PROPERTIES
SOLID WASTES
SOUTHEAST REGION
STACKS
STORAGE
SULFATES
SULFUR COMPOUNDS
THERMAL POWER PLANTS
USA
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WATER QUALITY