Effects of chemical dispersants and mineral fines on crude oil dispersion in a wave tank under breaking waves

The interaction of chemical dispersants and suspended sediments with crude oil influences the fate and transport of oil spills in coastal waters. A wave tank study was conducted to investigate the effects of chemical dispersants and mineral fines on the dispersion of oil and the formation of oil–min...

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Veröffentlicht in:Marine pollution bulletin 2007-07, Vol.54 (7), p.983-993
Hauptverfasser: Li, Zhengkai, Kepkay, Paul, Lee, Kenneth, King, Thomas, Boufadel, Michel C., Venosa, Albert D.
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container_end_page 993
container_issue 7
container_start_page 983
container_title Marine pollution bulletin
container_volume 54
creator Li, Zhengkai
Kepkay, Paul
Lee, Kenneth
King, Thomas
Boufadel, Michel C.
Venosa, Albert D.
description The interaction of chemical dispersants and suspended sediments with crude oil influences the fate and transport of oil spills in coastal waters. A wave tank study was conducted to investigate the effects of chemical dispersants and mineral fines on the dispersion of oil and the formation of oil–mineral-aggregates (OMAs) in natural seawater. Results of ultraviolet spectrofluorometry and gas chromatography flame ionized detection analysis indicated that dispersants and mineral fines, alone and in combination, enhanced the dispersion of oil into the water column. Measurements taken with a laser in situ scattering and transmissometer (LISST-100X) showed that the presence of mineral fines increased the total concentration of the suspended particles from 4 to 10 μl l −1, whereas the presence of dispersants decreased the particle size (mass mean diameter) of OMAs from 50 to 10 μm. Observation with an epifluorescence microscope indicated that the presence of dispersants, mineral fines, or both in combination significantly increased the number of particles dispersed into the water.
doi_str_mv 10.1016/j.marpolbul.2007.02.012
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source MEDLINE; ScienceDirect Journals (5 years ago - present)
subjects Applied sciences
Breaking waves
Crude oil
Disasters
Dispersants
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Environmental Monitoring
Exact sciences and technology
Fuel Oils - analysis
Fuel Oils - toxicity
Marine
Microscopy
Mineral fines
Minerals - chemistry
Natural water pollution
Oil droplets
OMAs
Particle Size
Pollution
Pollution, environment geology
Risk Assessment
Seawater
Seawaters, estuaries
Spectrum Analysis
Water Movements
Water Pollutants, Chemical - analysis
Water treatment and pollution
title Effects of chemical dispersants and mineral fines on crude oil dispersion in a wave tank under breaking waves
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