本powerpoint演示文稿首先简要概述了异养细菌及其与大量水的关系。有两个研究目标，第一个是确定 大量水异养平板计数（HPC）细菌的存在令人担忧 优于生物膜HPC的存在 细菌数据收集包括:生物膜HPC；散装水高性能混凝土；散装水氯；以及散装水AOC。余氯对生物膜和生物膜的影响 给出了细菌数量和比率方面的细菌浓度，以及停留时间对体积和生物膜的影响 细菌浓度的比例。第二个研究目标是开发能够 模拟停留时间，氯 浓度和水流速度会影响 生物膜中HPC细菌相对于 它们在散装水中的存在。比较了 全混流反应器（CMFR）模型与a 推流式反应器（PFR）模型。包括表格，数字。

This powerpoint presentation begins by providing a brief overview of heterotrophic bacteria and its relationship to bulk water. There were two study objectives, the first was to determine the conditions when the presence of bulk water heterotrophic plate count (HPC) bacteria is favored over the presence of biofilm HPC bacteria. Data collection included: biofilm HPC; bulk water HPC; bulk water chlorine; and, bulk water AOC. The effect of chlorine residual on bulk and biofilm bacteria concentration in terms of bacteria counts and ratio is presented, along with the effect of residence time on bulk and biofilm bacteria concentration in terms of ratio. The second study objective was to develop mechanistic models that can simulate how residence time, chlorine concentration, and water velocity influence the fraction of HPC bacteria in biofilms relative to their presence in bulk water. A comparison was done between a completely mixed flow reactor (CMFR) model vs. a plug flow reactor (PFR) model. Includes table, figures.