Author: Tara C. HealyPublisher:
ISBN:
Category :
Languages : en
Pages : 174
Book Description
Surfactant-enhanced Solubilization of Polycyclic Aromatic Hydrocarbons Under Acidic Conditions
Author: Tara C. HealyEnhanced Solubilization of Two Polycyclic Aromatic Hydrocarbons from an Aquifer Soil Using Nonionic Surfactants
Author: Kathleen DonovanEnhancement of Solubilization and Sorption Behaviors of Polycyclic Aromatic Hydrocarbons Through Involvement of Gemini Surfactants in Soil-Water Systems
Author: Jia WeiSurfactant Enhanced Remediation of Polycyclic Aromatic Hydrocarbons (PAHs)
Author: James F. BrennanSurfactant-Enhanced In Situ Biodegradation of Strongly Sorbing Organic Substances in Soil Environments
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 62
Book Description
Low-solubility Polycyclic Aromatic Hydrocarbons such as phenanthrene are easily biodegradable but due to sorption onto soil or/or their presence in a non-aqueous phase, their bioavailability is greatly reduced. In an aqueous environment where surfactants exist above their critical micelle concentration hydrophobic contaminant will partitioning into the hydrophobic core of the micelle. This enhances the apparent solubility of these hydrocarbons and therefore also their desorption from soils. Conceivably, in the absence of any inhibitory effects, such surfactants may enhance the biodegradation of the hydrocarbon. Through a set of screening experiments a group of non-ionic surfactants were identified which do not inhibit the bacterial degradation of the phenanthrene. A mathematical model was formulated to describe the interaction of the biomass-contaminant-water-surfactant system. The model assumes that the surfactant affects the solubility of phenanthrene and does not affect the biochemical characteristics of the biomass. An effective bioavailable concentration was defined. The model predicts experimental data well indicating that a part of the phenanthrene in the micelle phase can be degraded simultaneously with the phenanthrene in the aqueous phase. (jg) p.2.
Solubilization and Photochemical Degradation of Polycyclic Aromatic Hydrocarbons in Perfluorinated Surfactant Solutions
Author: Youn-Joo AnSolubilization of Aromatic Hydrocarbons by Nonionic Surfactants Under Groundwater Conditions
Author: Craig Dean OwensSurfactant Solubilization of Polycyclic Aromatic Hydrocarbons from Nonaqueous Phase Liquids
Author: Surfactant Solubilization and Biodegradation of Polycyclic Aromatic Hydrocarbon Compounds in Soil/aqueous and Aqueous Systems
Author: Zhongbao LiuSurfactant Effects on Solubilization, Dissolution and Biodegradation of Polycyclic Aromatic Hydrocarbons from Non-aqueous Phase Liquids
Author: Leticia Alonso BernardezPublisher:
ISBN:
Category :
Languages : en
Pages : 410
Book Description
"The objective of the thesis was to investigate the effects of nonionic surfactants on the dissolution and biodegradation of polycyclic aromatics hydrocarbons (PAHs) from a multicomponent non-aqueous phase liquids (NAPLs)." --