Photochemical Treatment of a Mixed PAH/Surfactant Solution for Surfactant Recovery and Reuse

摘要

Because of their hydrophobic nature, polycyclic aromatic hydrocarbons (PAHs) are generally thought to be unavailable to in situ remediation processes, and solubilization of PAHs by surfactants is usually recommended. However, mixed PAH/surfactant solutions are wastewaters that need a post-treatment after solubilization. In this study, mixed solutions of PAH and perfluorinated surfactant (PFS) were photochemically treated with and without hydrogen peroxide (H_2O_2),and the subsequent recovery and reuse of surfactant solutions were demonstrated.