Abstract

Suspended particulate materials (SPM) play an important role in the formation of submerged oil in marine coastal environments. Dozens of papers described the adsorption of oil droplets by SPM in the water column. However, quantitative analyses of the formation of submerged oil due to adsorption are limited. To better understand the submerged oil formation, this work studied oil–SPM interactions using the Yellow River Estuary SPM and Liaohe crude oil. The effects of SPM concentration, salinity, and the use of a chemical dispersant on the adsorption of oil by SPM were described in detail. A model describing the adsorption processes of the Liaohe crude oil was used to predict the oil trapping efficiency by SPM in waters in which the SPM levels were moderate to high. Our study can be used to augment computer-based models designed to predict the SPM-facilitated formation of submerged oil in marine coastal environments.

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