Combined cavitation and oxidation allow efficient and cheap removal of polycyclic aromatic hydrocarbons (PAHs) following the generation of reactive oxygen species. Here, we review the removal of PAHs by sonochemistry, biodegradation, photodegradation, Fenton oxidation, ozone oxidation, and photochemical oxidation. We discuss factors controlling cavitation under sonochemical irradiation in various reactors such as ultrasonic horn, ultrasonic bath and longitudinal horn. The longitudinal horn-type sonochemical reactor has wide operating capacity of 9.5 L with higher power dissipation of 9.5 W and energy efficiency of 59.2%. Degradation is highly dependent on gas sources such as CO₂, Ar, O₂, H₂, and He. Phenanthrene degradation efficiency increases from 30 to 70% with decreasing phenanthrene concentration from 4 to 1 mg/L at constant ultrasound frequency 20 kHz at 25 °C. Reduction of phenanthrene in sediments ranges from 12.9 to 48.3%. Combined ultrasonic and photo-Fenton oxidation treatments of PAHs are more efficient than solely ultrasonic.

空化和氧化相结合，可在产生活性氧之后，高效而廉价地去除多环芳烃（PAH）。在这里，我们审查通过声化学，生物降解，光降解，Fenton氧化，臭氧氧化和光化学氧化去除PAHs。我们讨论了在各种反应堆（如超声喇叭，超声浴和纵向喇叭）中在声化学辐射下控制空化的因素。纵向角型声波化学反应器具有9.5升的宽工作容量和9.5瓦的高功耗，能源效率为59.2％。降解高度依赖于气体源，例如CO ₂，Ar，O ₂，H ₂， 和他。在25°C的恒定超声频率20 kHz下，菲的降解效率从30％提高到70％，菲的浓度从4 mg / L降低到1 mg / L。沉积物中菲的减少量为12.9％至48.3％。PAH的超声和光芬顿氧化相结合处理比单纯超声更有效。