Desorption of phenanthrene in coal contaminated sediments: Effect of organic cosolvents on release kinetics

Conference · Thu Sep 01 00:00:00 EDT 1988 · Preprints of Papers Presented at National Meeting, Division of Water, Air and Waste Chemistry, American Chemical Society; (USA)

OSTI ID:5001178

Shorten, C V; Elzerman, A W ^[1]

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1. Clemson Univ., SC (USA)

Desorption kinetics for phenanthrene in coal contaminated sediments were determined using mixtures of acetone and methanol as cosolvents in water. At a given fraction of cosolvent, the less polar acetone induced desorption of greater amounts of phenanthrene than did methanol, but at similar rates. Kinetic constants were obtained by fitting desorption data to a first-order model. As predicted by cosolvent theory and microscopic equilibrium, desorption rates increased with increasing fraction cosolvent. Experimental design and period of observation of the desorption process appeared to affect the observed desorption constants.

• OSTI ID: 5001178
• Report Number(s): CONF-8809264-; CODEN: ACWCA
• Journal Information: Preprints of Papers Presented at National Meeting, Division of Water, Air and Waste Chemistry, American Chemical Society; (USA), Vol. 28:2; Conference: American Chemical Society Division of Environmental Chemistry, Los Angeles, CA (USA), 25-30 Sep 1988; ISSN 0099-7293
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
54 ENVIRONMENTAL SCIENCES
PHENANTHRENE
DESORPTION
SEDIMENTS
CONTAMINATION
CHEMICAL REACTION KINETICS
COAL
SOLVENT EXTRACTION
AROMATICS
CARBONACEOUS MATERIALS
CONDENSED AROMATICS
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
HYDROCARBONS
KINETICS
MATERIALS
ORGANIC COMPOUNDS
REACTION KINETICS
SEPARATION PROCESSES
010900* - Coal
Lignite
& Peat- Environmental Aspects
540220 - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)