在这项研究中，使用生物膜环形反应器（BAR）来评估各种处理工艺的有效性，例如混凝、直接过滤、生物过滤（使用颗粒活性炭或无烟煤过滤介质）、初级消毒和溶解空气浮选对生物稳定性的影响。这些棒是连续流动的动态系统，用于模拟12英寸直径管道中两小时的停留时间。将生物膜反应器放置在给定处理工艺的出水处，以确定处理水的生物稳定性和再生潜力。生物膜反应器的表面被逃避治疗的本土细菌群接种和定植。BAR法的一个重要优点是，它可以对生物膜进行直接取样，并可以持续评估特定水在一段时间内的生物稳定性。 包括17个参考文献、表格、图表。

In this study, biofilm annular reactors (BARs) were used to evaluate the effectiveness of various treatment processes, such as coagulation, direct filtration, biofiltration (with granular activated carbon or anthracite filter media), primary disinfection, and dissolved air flotation on biostability. The BARs are continuous-flow, dynamic systems that were used to simulate two hours of residence time in a 12-inch diameter pipe. The biofilm reactors were placed at the effluent of a given treatment process to determine the biological stability and regrowth potential of the treated water. The surface of the biofilm reactors become inoculated and colonized by the indigenous bacterial populations that escape treatment. An important advantage of the BAR method is that it provides for the direct sampling of the biofilm and the continuous evaluation of the biostability of a specific water over time. Includes 17 references, tables, figures.