A-DROP: A predictive model for the formation of oil particle aggregates (OPA).

Citation:

Zhao L, Boufadel MC, Geng X, Lee K, King T, Robinson B, Fitzpatrick F. A-DROP: A predictive model for the formation of oil particle aggregates (OPA). Marine Pollution Bulletin [Internet]. 2016;106 (1-2) : 245–259.

Date Published:

2016

Abstract:

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.

Publisher's Version

Last updated on 08/29/2016