Environmental control implications of lignite utilization. Final report

Technical Report · Thu Aug 01 04:00:00 EDT 1985

OSTI ID:5203253

McFarland, A R; Fisher, G L; McNeill, K L; Prentice, B A; Ortiz, C A

A 600 kg sample of fly ash was collected from the hoppers of a lignite fired power plant. The sample was size-classified into three fractions: fine, medium, and coarse, with volume median aerodynamic diameters of 2.8, 6.6, and 30.0 ..mu..m, respectively. Physical, chemical, and biological analyses were performed on the samples. Morphologically, the lignite fly ash samples are quite similar to coal fly ash. Neutron activation analysis showed the levels of arsenic to be comparable to the levels detected in coal fly ash. The arsenic concentration in unfractionated lignite fly ash is 34 ..mu..g/g and that in the Fine Fraction was 310..mu..g/g as compared with 19 ..mu..g/g in a coarse sample and 198 ..mu..g/g in a fine sample of coal fly ash. For selenium, the unfractionated lignite contained 12 ..mu..g/g and the fine fraction, 23 ..mu..g/g. The concentration of uranium in the unfractionated sample was 12 ..mu..g/g and that in the Fine was 29 ..mu..g/g. The lignite fly ash showed neither mutagenicity in the Ames test, nor did it affect the viability of pulmonary alveolar macrophage (PAM). On the other hand, the phagocytic activity of PAM is somewhat depressed by exposure to the fine and medium fraction of lignite fly ash. 14 refs., 4 figs., 7 tabs.

• Research Organization: Texas A and M Univ., College Station (USA). Air Quality Lab.
• DOE Contract Number: AS05-81EV10726
• OSTI ID: 5203253
• Report Number(s): DOE/EV/10726-T1; ON: DE86001599
• Country of Publication: United States
• Language: English

Related Subjects

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63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACTINIDES
ACTIVATION ANALYSIS
AEROSOL WASTES
ARSENIC
ASHES
BROWN COAL
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
COAL
DATA
ECOLOGICAL CONCENTRATION
ELEMENTS
ENERGY SOURCES
EXPERIMENTAL DATA
FLY ASH
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUELS
HAZARDS
HEALTH HAZARDS
INFORMATION
LIGNITE
MATERIALS
METALS
MORPHOLOGY
MUTAGEN SCREENING
NUMERICAL DATA
PARTICLE SIZE
POWER PLANTS
RESIDUES
SCREENING
SELENIUM
SEMIMETALS
SIZE
THERMAL POWER PLANTS
URANIUM
WASTES