The ozonation process has recently been proposed as an effective treatment method for removing pharmaceutical compounds from seawater-based wastewater discharged from fish farms or hatcheries. Seawater ozonation can lead to the production of secondary stable oxidants such as bromine (HOBr/OBr^-), which can be expressed as a total residual oxidants (TRO) owing to the high reaction rate constant with respect to ozone and bromide ion. TRO formation depends on water quality, in terms of aspects such as salinity, ammonia, and organic matter content; therefore, it is important to understand the variations in the ozone chemistry of bromide-containing water by considering the factors influencing TRO formation. In addition, the removal of pharmaceutical compounds in bromide-containing water should be evaluated owing to the different oxidation efficiency between TRO and pure aqueous ozone. This study aims to investigate the factors influencing the formation of TRO and the removal of pharmaceutical compounds during the ozonation of bromide-containing water. The results show that salinity increased the TRO formation rate by 6%, while ammonia and organic matter decreased the TRO formation rate by 51% and 39%, respectively. The removal efficiency of pharmaceutical compounds by TRO was higher compared with that by only ozone. Ammonia and organic matter inhibited the ozonation of bromide-containing water. These results indicate that TRO can be broadly used in the field of seawater ozonation; however, additional case studies on the removal of pharmaceutical compounds from seawater-based wastewater are needed to elucidate the oxidation mechanisms of various TRO.

最近提出了臭氧化工艺作为从鱼场或孵化场排放的海水基废水中去除药物化合物的有效处理方法。海水可以臭氧化导致生产次级稳定氧化剂如溴（次溴酸/ OBR ^-），由于对臭氧和溴离子的反应速率常数高，可以表示为总残留氧化剂（TRO）。TRO的形成取决于水质，例如盐度，氨和有机物含量。因此，重要的是要通过考虑影响TRO形成的因素来了解含溴水中的臭氧化学变化。此外，由于TRO与纯臭氧水溶液之间的氧化效率不同，因此应评估含溴水中的药物去除率。这项研究旨在调查在含溴水的臭氧化过程中影响TRO形成和药物化合物去除的因素。结果表明，盐度使TRO的生成率增加了6％，而氨和有机物分别使TRO生成率降低了51％和39％。TRO对药物化合物的去除效率高于仅对臭氧的去除效率。氨和有机物抑制了含溴化物的水的臭氧化。这些结果表明TRO可广泛应用于海水臭氧化领域。然而，需要更多的案例研究来从海水废水中去除药物化合物，以阐明各种TRO的氧化机理。这些结果表明TRO可广泛应用于海水臭氧化领域。然而，需要更多的案例研究来从海水废水中去除药物化合物，以阐明各种TRO的氧化机理。这些结果表明TRO可广泛应用于海水臭氧化领域。然而，需要更多的案例研究来从海水废水中去除药物化合物，以阐明各种TRO的氧化机理。