臭氧氧化后，许多水体中细菌再生的可能性增加。这种额外的再生潜力在某些情况下与总有机碳中可生物降解部分或可生物降解有机碳（BDOC）的增加有关。使用氯来控制额外的细菌再生会导致DBP的形成，必须尽可能减少DBP的形成，以满足拟议法规的要求。单独臭氧氧化并不能始终降低DBP浓度。因此，如果要达到处理目标，可能需要在臭氧氧化后进行额外的处理步骤，例如生物处理以去除可生物降解的有机碳。这项研究测量了在一定臭氧剂量范围内，去除地表水中可生物降解的有机碳对氯残留、DBP浓度和细菌再生的影响。

The potential for bacterial regrowth increases in many waters after ozonation. This additional regrowth potential is related in some cases to an increase in the biodegradable portion of the total organic carbon, or the biodegradable organic carbon (BDOC). Application of chlorine to control additional bacterial regrowth results in DBP formation, which must be minimized as much as possible to meet the proposed regulations. Ozonation alone has not consistently produced reductions in DBP concentrations. Thus, an additional treatment step after ozonation, such as biological treatment to remove biodegradable organic carbon, may be necessary if treatment goals are to be met. This research measured the effect of removing the biodegradable organic carbon in one surface water on chlorine residuals, DBP concentrations, and bacterial regrowth, over a range of ozone doses.