title: Influence of nonionic surfactant on the solubilization and biodegradation of phenanthrene.
abstract: Phenanthrene was solubilized in two different nonionic surfactants, Tween80 and Triton X-100. The bioavailability of phenanthrene to the bacteria isolated from the petroleum contaminated soils was studied based on the rotary flasks experiments. The results showed that the concentration of nonionic surfactants above the critical micelle concentration (CMC) can increase the solubility of phenanthrene in water and were innoxious to the phenanthrene-degrading bacteria; phenanthrene solubilized in the micelles of Tween80 was bioavailable and biodegradable. The research demonstrated the potential of surfactant-enhanced bioremediation of soils contaminated by hydrophobic organic compounds (HOCs).
authors.affiliation: Department of Environmental Science & Engineering, Tsinghua University, Beijing 100084, China. yang00@mails.tsinghua.edu.cn
authors.forename: Jian-gang
authors.initials: JG
authors.lastname: Yang
authors.forename: Xiang
authors.initials: X
authors.lastname: Liu
authors.forename: Tao
authors.initials: T
authors.lastname: Long
authors.forename: Gang
authors.initials: G
authors.lastname: Yu
authors.forename: She
authors.initials: S
authors.lastname: Peng
authors.forename: Liu
authors.initials: L
authors.lastname: Zheng
mesh_terms: D001419:Bacteria / Q000378:metabolism; D001673:Biodegradation, Environmental; D001682:Biological Availability; D008823:Micelles; D017830:Octoxynol / Q000737:chemistry*; D010616:Phenanthrenes / Q000737:chemistry* / Q000493:pharmacokinetics; D011136:Polysorbates / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis*; D012995:Solubility; D013501:Surface-Active Agents / Q000737:chemistry*
chemical_list: D008823:Micelles; D010616:Phenanthrenes; D011136:Polysorbates; D012989:Soil Pollutants; D013501:Surface-Active Agents; C031181:phenanthrene; D017830:Octoxynol