DEGRADATION OF POLYCYCLIC AROMATIC HYDROCARBONS TO RENDER THEM AVAILABLE FOR BIODEGRADATION
申请人:Hong P.K. Andy
公开号:US20080242875A1
公开(公告)日:2008-10-02
A method for the degradation of polycyclic aromatic compounds is disclosed that involves dissolving ozone in a bipolar solvent comprising a non-polar solvent in which is of sufficiently non-polar character to solubilized the polycyclic aromatic compounds, and a polar-water-compatible solvent which is fully miscible with the non-polar solvent to form a single phase with the non-polar solvent. The bipolar solvent with dissolved ozone is contacted with the polycyclic aromatic compounds to solubilize the polycyclic aromatic compounds and react the dissolved polycyclic aromatic compounds with the ozone to degrade the dissolved polycyclic aromatic compounds to oxygenated intermediates. The bipolar solvent is then mixed with sufficient water to form separate non-polar and polar phases, the non-polar phase comprising the non-polar solvent and the polar phase comprising the non-polar solvent and the oxygenated intermediates. The polar phase is then diluted and incubated with bacteria to biodegrade the oxygenated intermediates.
揭示了一种降解多环芳烃化合物的方法,涉及将臭氧溶解在一种双极溶剂中,该溶剂包括一种非极性溶剂,其具有足够的非极性特性以溶解多环芳烃化合物,以及一种极性-水相容溶剂,与非极性溶剂完全互溶以形成与非极性溶剂相同的单一相。将含有溶解臭氧的双极溶剂与多环芳烃化合物接触,以溶解多环芳烃化合物并使溶解的多环芳烃化合物与臭氧反应,将溶解的多环芳烃化合物降解为含氧中间体。然后将双极溶剂与足够的水混合以形成分离的非极性和极性相,其中非极性相包括非极性溶剂,极性相包括非极性溶剂和含氧中间体。然后将极性相稀释并与细菌孵育以生物降解含氧中间体。