Sorption of aniline on selected Alfisols from the eastern coal region

Journal Article · Sat Sep 01 04:00:00 EDT 1984 · Soil Sci.; (United States)

DOI:https://doi.org/10.1097/00010694-198409000-00004· OSTI ID:5910746

Zachara, J M; Felice, L J; Sauer, J K

The sorptive behavior of aniline was investigated in two Alfisols from eastern coal regions. Batch adsorption/desorption studies (soil/solution ratio 1:5, aniline concentration 25 to 400 ..mu..g/ml) were performed on the prominent genetic horizons of each soil. Sorption was evaluated as a function of equilibrium pH and ionic strength (Na/sub 2/SO/sub 4/) of the supporting electrolyte and on selected horizons treated to remove organic materials (H/sub 2/O/sub 2/ oxidation) and secondary iron components (oxalate and DCB-extractable). The behavior of aniline in the B horizons was concentration-dependent, and at higher concentrations (>75 ..mu..g/ml) sorption exceeded that of the upper or A horizons and was reversible. Aniline sorption was pH-dependent, reflecting different mechanisms and sites of sorption in the A and B horizons. Binding of aniline in the A horizons was greater below the compound pKa; maximum sorption in B horizons occurred above the pKa. Sorption in the A horizon was controlled primarily by partially irreversible interaction with organic materials; the high degree of sorption in the lower horizons may have resulted from proton transfer reactions and binding of the anilinium ion to interlayer areas of phyllosilicate minerals. 39 references, 5 figures, 2 tables.

• Research Organization: Pacific Northwest Laboratories, Richland, WA
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5910746
• Journal Information: Soil Sci.; (United States), Journal Name: Soil Sci.; (United States) Vol. 138:3; ISSN SOSCA
• 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
CHEMICAL BONDS
CHEMISTRY
COAL LIQUEFACTION
DATA
EXPERIMENTAL DATA
FEDERAL REGION III
FEDERAL REGION IV
INFORMATION
KENTUCKY
LAND POLLUTION
LIQUEFACTION
NORTH AMERICA
NUMERICAL DATA
ORGANIC COMPOUNDS
PH VALUE
POLLUTION
SOIL CHEMISTRY
SOILS
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TENNESSEE
THERMOCHEMICAL PROCESSES
USA
WEST VIRGINIA