据报道，许多氯胺化废水中都出现了硝化暴发事件 配水系统（CWDSs）和水质恶化通常会导致这种情况 系统。这种现象背后的一个主要罪魁祸首被认为是人口的增长 CWDSs中生物膜中的硝化微生物。这表明常用的 一氯胺（NH₂Cl）残留物没有有效地灭活生物膜 CWDSs中的微生物。在对生物膜中的嵌入细胞进行灭活的过程中， NH₂Cl必须首先穿透生物膜基质，然后攻击其目标。 了解渗透过程对于评估NH₂Cl的有效性至关重要 灭活生物膜微生物。基于一种新型微电极，适用于 NH₂Cl测定，本研究研究研究了NH₂Cl在饮用水中的渗透过程 生物膜以及基质材料对该过程的影响。 生物膜是在安装有3种类型的环形反应器中开发的 由聚氯乙烯（PVC）、聚碳酸酯（PC）和混凝土制成的可拆卸载玻片。 在配水系统中的水管维修工作期间采集的冲洗水 用作接种种子以及反应器的连续进料。条件 对配水系统中的慢流段进行了剪切力和流动模拟 速度过滤后的空气被分散到进料罐中，以确保反应器中的好氧条件。包括数字。

Episodes of nitrification outbreak have been reported in many chloraminated water distribution systems (CWDSs), and water quality deterioration often results in such systems. One major culprit behind this phenomenon has been believed to be the growth of nitrifying microorganisms in biofilms in the CWDSs. This indicates that commonly used monochloramine (NH₂Cl) residuals have not been effectively inactivating biofilm microorganisms in CWDSs. In the process of inactivation against embedded cells in biofilms, NH₂Cl must first penetrate through the biofilm matrix and then attack its targets. Understanding of the penetration process is critical to evaluating the effectiveness of NH₂Cl in inactivating biofilm microorganisms. Based on a newly developed microelectrode suitable for NH₂Cl measurement, this research studied the penetration process of NH₂Cl in drinking water biofilms as well as the impacts of substratum materials on this process. Biofilms were developed in an annular reactor installed with 3 types of removable slides made from polyvinyl-chloride (PVC), polycarbonate (PC) and concrete. Flushed wash water sampled during repair work of water mains in a water distribution system was used as the seed for inoculation as well as the continuous feed of the reactor. Conditions of slow-flow sections in distribution systems were simulated with respect to shear force and flow rate. Filtered air was dispersed into the feed tank to ensure an aerobic condition in the reactor. Includes figure.