Sorption of amino- and carboxy-substituted polynuclear aromatic hydrocarbons by sediments and soils

Journal Article · Sun Jan 31 23:00:00 EST 1982 · Environ. Sci. Technol.; (United States)

DOI:https://doi.org/10.1021/es00096a007· OSTI ID:5656529

Means, J C ^[1]; Wood, S G; Hassett, J J; Banwart, W L

---

1. Univ. of Maryland, Solomons

The sorption of 2-aminoanthracene, 6-aminochrysene, and anthracene-9-carboxylic acid on 14 sediment and soil samples exhibiting a wide range of physiochemical properties was studied. The equilibrium isotherms were linear, and the Freundlich partition coefficients (K/sub p/) for each compound were found to be highly correlated with the organic carbon content of the soil/sediment tested. No other significant correlations with soil/sediment properties were observed. The sorption constants (K/sup p/), when normalized to organic carbon content of the substrate (K/sup oc/), could be predicted within a factor of 2-3 from the octanol-water partition coefficients or water solubilities of the compounds using equations developed in earlier studies. However, both equations tended to underestimate the K/sup oc/ values for the two amines tested. The amount of deviation from predicted sorption was highly correlated with the % organic carbon/% montmorillonite clay ratio of substrates. Experimental values of the water solubility and octanol-water partition coefficients for the three compounds are reported.

• OSTI ID: 5656529
• Journal Information: Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 16:2; ISSN ESTHA
• Country of Publication: United States
• Language: English

Related Subjects

510200* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AMINES
AROMATICS
CARBON
CARBOXYLIC ACIDS
CHEMISTRY
CLAYS
ELEMENTS
ENVIRONMENTAL EFFECTS
GEOCHEMISTRY
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MONTMORILLONITE
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
SEDIMENTS
SOILS
SORPTION