期刊
MARINE POLLUTION BULLETIN
卷 106, 期 1-2, 页码 245-259出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2016.02.057
关键词
Oil-particle aggregation; Oil spill; Oil trapping rate; OPA formation; Nearshore environment
资金
- Gulf of Mexico Research Initiative through the Consortium DROPPS
- Department of Fisheries and Ocean Canada (DFO) [F5211-130060]
Oil-particle interactions play a major role in removal of free oil from the water column. We present a new conceptual-numerical model, A-DROP, to predict oil amount trapped in oil-particle aggregates. A new conceptual formulation of oil-particle coagulation efficiency is introduced to account for the effects of oil stabilization by particles, particle hydrophobicity, and oil-particle size ratio on OPA formation. A-DROP was able to closely reproduce the oil trapping efficiency reported in experimental studies. The model was then used to simulate the OPA formation in a typical nearshore environment Modeling results indicate that the increase of particle concentration in the swash zone would speed up the oil-particle interaction process; but the oil amount trapped in OPAs did not correspond to the increase of particle concentration. The developed A-DROP model could become an important tool in understanding the natural removal of oil and developing oil spill countermeasures by means of oil particle aggregation. (C) 2016 Elsevier Ltd. All rights reserved.
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