Products from laboratory chlorination of fly ash from a municipal incinerator
Fly ash samples from a municipal incinerator were treated at 200 and 300 /sup 0/C with chlorine gas for 1 h. Changes in composition of organic compounds in the samples were determined by using GC and GC/MS analysis of benzene extracts. Chlorination of fly ash produced a series of highly chlorinated aromatic hydrocarbons including hexachlorobenzene, decachlorobiphenyl, and nonachlorobiphenyl. Tentative identifications are also listed for other compounds with the following proposed molecular formulas: C/sub 7/HOCl/sub 5/, C/sub 6/H/sub 3/O/sub 2/Cl/sub 3/, C/sub 8/Cl/sub 8/, and C/sub 12/H/sub 4/O/sub 3/Cl/sub 6/ (or C/sub 13/H/sub 8/O/sub 2/Cl/sub 6/). Production of some of these compounds is dependent upon chlorination of benzene-soluble-nonvolatile precursor which was present naturally in this fly ash. These results show that fly ash from municipal incinerators may undergo gas phase-particulate reactions under conditions of high temperature with a source of chlorine and that such reactions lead to the production of chlorinated organic compounds at trace concentration levels.
- Research Organization:
- New Mexico State Univ., Las Cruces
- OSTI ID:
- 5611437
- Journal Information:
- Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 16:1; ISSN ESTHA
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
AEROSOL WASTES
AROMATICS
ASHES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHLORINATED AROMATIC HYDROCARBONS
CHLORINATION
CHROMATOGRAPHY
DECOMPOSITION
FLY ASH
GAS CHROMATOGRAPHY
HALOGENATED AROMATIC HYDROCARBONS
HALOGENATION
INCINERATORS
MANAGEMENT
MASS SPECTROSCOPY
MUNICIPAL WASTES
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PYROLYSIS
QUALITATIVE CHEMICAL ANALYSIS
RESIDUES
SEPARATION PROCESSES
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
WASTES