Beneficial uses of CFB ash

Conference · Fri Dec 30 23:00:00 EST 1994

OSTI ID:43143

Young, L J ^[1]; Cotton, Jr, J L ^[2]

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1. Ahlstrom Pyropower, Inc., San Diego, CA (United States)
2. Pyropower Corp., San Diego, CA (United States)

Coal-fired generation accounts for almost 55 percent of the electricity produced in the United States. It has been estimated that over 90 million tons of coal combustion waste by-products were generated in 1990. Currently, only 30% of coal combustion waste is recycled for various beneficial applications. The remaining waste is primarily managed in landfills and surface impoundments. Circulating fluidized bed (CFB) combustion technology will play an important role in supplying power for future load growth and Title 4 of the 1990 Clean Air Act Amendments compliance. CFB ash by-products have many beneficial uses. This paper describes potential applications of CFB ashes based on the ash characteristics. The beneficial uses of CFB ash discussed in this study include agricultural applications, acidic waste stabilizer, ash rock, sludge stabilizer, strip mine reclamation, and structural fill.

• OSTI ID: 43143
• Report Number(s): CONF-940930--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
20 FOSSIL-FUELED POWER PLANTS
ACID MINE DRAINAGE
ACID NEUTRALIZING CAPACITY
ASHES
BACKFILLING
CHEMICAL COMPOSITION
CIRCULATING SYSTEMS
FLUIDIZED-BED COMBUSTORS
FOSSIL-FUEL POWER PLANTS
GRANULAR MATERIALS
LAND RECLAMATION
LIMING
PHYSICAL PROPERTIES
SLUDGES
SOILS
STABILIZATION
SURFACE MINING
WASTE PRODUCT UTILIZATION