Petroleum hydrocarbon release behavior study in oil-sediment aggregates: turbulence intensity and chemical dispersion effect

Abstract

This study investigated the effects of turbulence and oil dispersants on release of petroleum hydrocarbons in oil-sediment aggregates.

Contaminated aquatic sediments

“…Model predictions were compared to a database of over a thousand fish sample records (made up of 19 sport fish species) based on which the model was calibrated and with which to account for fish movement that improved the initial predictions. Yan et al (2019) studied the impact of oil dispersants and turbulence on petroleum hydrocarbon release in sediment–oil aggregates. They observed increased oil release with increasing salinity and temperature but it was not being affected by pH, and the residual oil contained higher fractions of C15‐C35 and 2‐3 ring PAHs.…”

A practical adsorption model for the formation of submerged oils under the effect of suspended sediments

“…can change the removal behavior of dispersed oil droplets, such as the use of chemical dispersant and change of salinity may cause redistribution, either promote or weaken the formation of submerged oils, which is complicated and could not be predicted. 24,31 Second, K d is an empirical and conditional parameter, and it's best to actually measure it. Our data used here were from literature and model empirical inference, which may overestimate the active part in the partitioning of dispersed oil droplets between solid and dissolved states.…”