Enhanced Solubilization and Desorption of Organochlorine Pesticides (OCPs) from Soil by Oil-Swollen Micelles Formed with a Nonionic Surfactant
作者： Guanyu Zheng , Ammaiyappan Selvam , Jonathan W. C. Wong
DOI: 10.1021/ES302832Z
关键词: Organochlorine pesticide 、 Loam 、 Micelle 、 Desorption 、 Chromatography 、 Linseed oil 、 Nonionic surfactant 、 Solubilization 、 Chemistry 、 Critical micelle concentration
摘要: The effect of oil-swollen micelles formed with nonionic surfactant polyoxyethylene sorbitan monooleate (Tween 80), cosurfactant 1-pentanol, and linseed oil on the solubilization desorption organochlorine pesticides (OCPs) including DDT γ-HCH from both loam soil clay were investigated. Results showed that solubilizing capacities dependent critical micelle concentration (CMC) Tween 80. Once concentrations exceeded CMC 80, exhibited much higher capacity than empty 80 for two OCPs. Desorption tests revealed could successfully enhance OCPs soil. However, compared efficiencies achieved by micelles, their superiority to desorb only in soil–water system while was less effective system. Distribution Twe...
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