Terrestrial fate of coal-liquid constituents: behavior of alkyl anilines in soil

Technical Report · Thu Jul 01 04:00:00 EDT 1982

DOI:https://doi.org/10.2172/5126971· OSTI ID:5126971

Felice, L J; Zachara, J M; Rogers, J E

The low molecular weight aromatic amines (anilines) are important water soluble constituents of coal liquids. The impact of anilines released to the terrestrial environment will largely depend on their mobility and persistence. Studies were conducted to investigate those processes governing the mobility and persistence of the alkylanilines, namely, soil sorption and chemical/microbial degradation. Soil sorption measurements were conducted on aniline and several methyl substituted anilines on A and B horizons of a soil profile collected from Davies County, Kentucky. The magnitude of sorption was large in all horizons. Sorption in the B horizons was larger than in the A horizon for many of the anilines studied, indicating the importance of both the mineral matrix and organic carbon content of the soil in determining the magnitude of sorption. Results of these measurements indicate that movement of the anilines through the soil would be significantly attenuated by sorption reactions. Aniline sorption measurement in the A horizon after removal of the organic matter and in the B/sub 22/ horizon after removal of amorphous iron oxides and crystalline iron oxides indicate that organic matter largely controls aniline sorption in the A horizon, while crystalline iron oxides and phyllosilicates are important in the B horizons. The effects of pH on aniline sorption was also examined and shown to have significant effects on the magnitude of sorption in both A and B horizons. Soil degradation studies using /sup 14/C-3-methylaniline as a model for alkyl aniline degradation show that 3-methylaniline is readily metabolized by soil microorganisms during the 32-day period examined.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5126971
• Report Number(s): PNL-4222; ON: DE82021708
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010900* -- Coal
Lignite
& Peat-- Environmental Aspects
510200 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AMINES
ANILINE
AROMATICS
BIODEGRADATION
CHEMICAL REACTIONS
COAL LIQUIDS
DATA
DECOMPOSITION
ENVIRONMENTAL TRANSPORT
EQUILIBRIUM
EXPERIMENTAL DATA
FLUIDS
INFORMATION
LIQUIDS
MASS TRANSFER
METABOLISM
MICROORGANISMS
NUMERICAL DATA
ORGANIC COMPOUNDS
PH VALUE
SOILS
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES