Sorption of selected organic pollutants in Danish soils
The sorption of benzoic acid, nitrobenzene, 4-nitrophenol, 2,4-dichlorophenoxyacetic acid (2,4-D), and naphthalene was determined for 10 Danish soils in laboratory studies. Measured equilibrium isotherms were of nonlinear Freundlich type for nearly all combinations of soil-test compounds. Adsorption was significantly correlated with the organic carbon content of the soils tested. No significant correlations with pH and cation-exchange capacity were observed. The adsorption of benzoic acid was found to be reversible and the sorption of naphthalene was reversible in 4 of 10 soils. A desorption-resistant fraction of adsorbed 2,4-D was estimated from interdependent adsorption and desorption isotherms.
- Research Organization:
- Technical Univ. of Denmark, Lyngby
- OSTI ID:
- 5969935
- Journal Information:
- Ecotoxicol. Environ. Saf.; (United States), Journal Name: Ecotoxicol. Environ. Saf.; (United States) Vol. 8:5; ISSN EESAD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACETIC ACID
ADSORPTION
ADSORPTION ISOTHERMS
AROMATICS
BENZOIC ACID
CARBOXYLIC ACIDS
CHEMISTRY
CONDENSED AROMATICS
DENMARK
EUROPE
HERBICIDES
HYDROCARBONS
HYDROXY COMPOUNDS
ION EXCHANGE
ISOTHERM
LAND POLLUTION
MONOCARBOXYLIC ACIDS
NAPHTHALENE
NITRO COMPOUNDS
NITROBENZENE
NITROPHENOL
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PESTICIDES
PH VALUE
PHENOLS
POLLUTION
SCANDINAVIA
SOIL CHEMISTRY
SOILS
SORPTION
WESTERN EUROPE