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Coal fly-ash studies

Journal Article · · Energy Technol. Rev.; (United States)
OSTI ID:5751803
The composition and properties of coal fly-ash particles (particularly those smaller than 8 microns) passed through conventional precipitators, are studied to find ways of minimizing health hazards. The actual outputs of utility-scale power plants that use different forms of pollution control have been evaluated, and it is demonstrated that an electrostatic precipitator (ESP) and a hot-side ESP are more effective in controlling emissions of several potentially toxic trace substances than high-energy Venturi wet scrubber systems. The behavior of coal-combustion pollutants after release into the atmosphere has been investigated by picking and sorting aerosol particles tens of kilometers from the source with cascade impactors mounted on aircraft. The measurements suggest that the levels of mutagens and cancer-causing materials on fly-ash particles from modern plants may be much lower than predicted in earlier studies.
OSTI ID:
5751803
Journal Information:
Energy Technol. Rev.; (United States), Journal Name: Energy Technol. Rev.; (United States); ISSN ETRED
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010900* -- Coal
Lignite
& Peat-- Environmental Aspects
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOL WASTES
AEROSOLS
AIR POLLUTION
ASHES
CARBONACEOUS MATERIALS
CARCINOGENS
CHEMICAL COMPOSITION
COAL
COLLOIDS
DISPERSIONS
DISTRIBUTION
ENERGY SOURCES
EQUIPMENT
EVALUATION
FLY ASH
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUELS
HAZARDS
HEALTH HAZARDS
MATERIALS
PARTICLE SIZE
POLLUTION
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
PUBLIC HEALTH
RESIDUES
SIZE
SOLS
SPATIAL DISTRIBUTION
THERMAL POWER PLANTS
WASTES