The physical–biological processes of petroleum hydrocarbons in seawater/sediments after an oil spill

Abstract

Physical adsorption and biodegradation processes of crude oil in a seawater–sediment system.

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

“…21 In this case, simulation of these interactions in laboratory experiments was possible because the turbulence in the ask was similar to those found in marine environments. 32,33 To simulate the marine environment as much as possible, environmental factors had a salinity of 3.4 wt%, pH 7.2, and temperature of 15 AE 2 C. We acknowledged that there was a certain gap between the laboratory environment and a real-world oil spill. However, understanding these factors is crucial to extrapolating the results from idealized laboratory experiments.…”

Kinetics and thermodynamics of dissolved petroleum hydrocarbons in sediment under sophorolipid application and their effects on oil behaviour end-results in marine environment

“…The rst model was the Langmuir isotherm model 1/ Q e ¼ 1/Q m + 1/K L Q m C e (where Q m (mg g À1 ) is the saturated adsorption capacity, C e (mg L À1 ) is the crude oil concentration at equilibrium in solution, and K L (L mg À1 ) is the isotherm constant); the second was the Freundlich isotherm model ln Q e ¼ ln K F + 1/ n(ln C e ) (where K F (mg g À1 ) is the isotherm constant); the third was the Temkin isotherm model Q e ¼ b ln a + b ln C e ; and the fourth was Hurkin's-Jura isotherm model 1/Q e 2 ¼ B/A À 1/A(log C e ) (where A and B are the isotherm constants). 29,30 The Freundlich isotherm model was used to describe nonuniform and multiple-substance adsorption, which was not restricted to the formation of a monolayer. 31 Fig.…”