Variations in concentrations of organic compounds including polychlorinated dibenzo-p-dioxins and polynuclear aromatic hydrocarbons in fly ash from a municipal incinerator
The composition of organic compounds in fly ash from municipal incinerators has been characterized for eight samples which were taken weekly from a single municipal incinerator. Samples were extracted in a Soxhlet apparatus with benzene, and concentrated extracts were analyzed by GC and GC/MS including SIM determination for polychlorinated dibenzo-p-dioxins (PCDD) and polynuclear aromatic hydrocarbons (PAH). Gas chromatograms of extracts showed large variations in numbers and concentrations of organic compounds with values of estimated total organic carbon of 1 to 60 ..mu..g/g of fly ash. Concentrations of PCDD varied between 10 and 170 ng/g, while concentrations of PAH were 6 to 1100 ng/g. Differences in concentrations of PAH were parallel to differences in concentrations of estimated total organic compounds. However, concentrations of PCDD showed no such relationship. Ratios of series of PCDD were not constant in these samples.
- Research Organization:
- Univ. of Waterloo, Ontario
- OSTI ID:
- 6449048
- Journal Information:
- Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 53:7; ISSN ANCHA
- Country of Publication:
- United States
- Language:
- English
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54 ENVIRONMENTAL SCIENCES
AEROSOL WASTES
ALKANES
AROMATICS
ASHES
BENZENE
CHEMICAL ANALYSIS
CHLORINATED AROMATIC HYDROCARBONS
CHROMATOGRAPHY
ESTERS
EXTRACTION
FLY ASH
FURANS
GAS CHROMATOGRAPHY
HALOGENATED AROMATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
INCINERATORS
ION MICROPROBE ANALYSIS
MASS SPECTROSCOPY
MICROANALYSIS
NONDESTRUCTIVE ANALYSIS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PHTHALIC ACID ESTERS
POLYCYCLIC AROMATIC HYDROCARBONS
RESIDUES
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPECTROSCOPY
WASTES