Sorption and chemical transformation of PAHs on coal fly ash. Technical progress report No. 8

Technical Report · Wed Dec 01 04:00:00 EST 1993

DOI:https://doi.org/10.2172/10195345· OSTI ID:10195345

Mamantov, G; Wehry, E L

The objective of this work is to characterize the interactions of coal fly ash with polycyclic aromatic hydrocarbons (PAHs) and their derivatives, and to understand the influence of the surface properties of coal ash (and other atmospheric particles) on the chemical transformations of polycyclic aromatic compounds. Specific investigations directed toward this overall objective include: (a) Fractionation of heterogeneous coal fly ash samples into different particle types varying in size and chemical composition (carbonaceous, mineral-magnetic, and mineral nonmagnetic); (b) Measurement of the rates of chemical transformation of PAHs and PAH derivatives (especially nitro-PAHs) and the manner in which the rates of such processes are influenced by the chemical and physical properties of coal fly ash particles; (c) Chromatographic and spectroscopic studies of the nature of the interactions of coal fly ash particles with PAHs and PAH derivatives; (d) Characterization of the fractal nature of fly ash particles (via surface area measurements) and the relationships of {open_quotes}surface roughness{close_quotes} of fly ash particles to the chemical behavior of PAHs sorbed on coal ash particles. PAHs are deposited, under controlled laboratory conditions, onto coal ash surfaces from the vapor phase, in order to mimic the processes by which PAHs are deposited onto particulate matter in the atmosphere.

• Research Organization: Tennessee Univ., Knoxville, TN (United States). Dept. of Chemistry
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-91PC91306
• OSTI ID: 10195345
• Report Number(s): DOE/PC/91306--T1; ON: DE94003599
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201
54 ENVIRONMENTAL SCIENCES
540120
AIR POLLUTION
ATMOSPHERIC CHEMISTRY
BENZANTHRACENE
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
CHEMICAL REACTIONS
CHEMICALS MONITORING AND TRANSPORT
COAL
FLY ASH
FRACTALS
POLYCYCLIC AROMATIC HYDROCARBONS
PROGRESS REPORT
ROUGHNESS
SORPTION
SORPTIVE PROPERTIES
SURFACE AREA
SURFACE PROPERTIES
TOLUENE
WASTE MANAGEMENT