Evaluation of Chiyoda Thoroughbred 121 FGD process and gypsum stacking. Volume 3. Testing the feasibility of stacking FGD gypsum. Final report

Technical Report · Sat Nov 01 04:00:00 EST 1980

DOI:https://doi.org/10.2172/6812996· OSTI ID:6812996

Garlanger, J. E.; Ingra, T. S.

Forced-oxidation flue gas desulfurization (FGD) scbbers can produce significant quantities of waste gypsum, which, if not utilized, require safe and economical disposal. Gypsum is also a waste product of the phosphate fertilizer industry, which has successfully utilized stacking methods of waste disposal for more than 20 years. Results from geotechnical laboratory testing of Chiyoda Thoroughbred 121 (CT-121) FGD gypsum are presented. These results indicate CT-121 FGD gypsum has settling, dewatering, and structural characteristics similar to and, in some instances, more favorable than phosphate gypsum, making stacking methods of waste disposal a possible option for disposing of FGD gypsum. The construction and nine-month operation of a one-half acre, 12-foot-high prototype CT-121 FGD gypsum stack at the Scholz plant is also discussed. The success of this installation further confirms the feasibility of utilizing stacking for disposal of FGD gypsum. Basic concepts concerning the design and management of gypsum stacks in the phosphate industry are presented to illustrate the stacking method as it may be adopted by the utility industry for stacking FGD gypsum.

• Research Organization: Ardaman and Associates, Inc., Orlando, FL (USA)
• OSTI ID: 6812996
• Report Number(s): EPRI-CS-1579(Vol.3)
• Country of Publication: United States
• Language: English

Related Subjects

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200200 -- Fossil-Fueled Power Plants-- Waste Management
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM SULFATES
CHEMICAL REACTIONS
CHIYODA THOROUGHBRED PROCESS
DESULFURIZATION
EQUIPMENT
FEASIBILITY STUDIES
FLUE GAS
FOSSIL-FUEL POWER PLANTS
GASEOUS WASTES
GYPSUM
MANAGEMENT
MINERALS
OXIDATION
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
SCRUBBERS
SOLID WASTES
SULFATES
SULFUR COMPOUNDS
THERMAL POWER PLANTS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES