| 摘要 |
A process to reduce the concentration of dissolved polynuclear aromatic hydrocarbons in an aqueous composition, particularly a refinery waste water stream, by contacting the aqueous composition with a water insoluble inclusion agent comprising an anchored cyclodextrin, said cyclodextrin having an inclusion cavity diameter of at least about 10 angstroms, under conditions which facilitate the selective formation of an inclusion complex between a cyclodextrin and a polynuclear aromatic hydrocarbon.
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