Distribution system on‐line monitoring for detecting contamination and water quality changes
Distribution system on‐line monitoring for detecting contamination and water quality changes
复制标题
分配系统在线监测，检测污染和水质变化
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
S. Bahl
中科院分区：
文献类型：
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作者：
J. Skadsen;R. Janke;W. Grayman;W. B. Samuels;Mark J. Tenbroek;Brian Steglitz;S. Bahl
对水质的担忧和对配水系统可能的故意污染使得在线监测成为许多水务公司越来越重要的优先事项。密歇根州安阿伯市评估了不同的水质监测参数，测试了多个制造商的监测设备，并评估了如何在配电系统中有效地定位监测设备，以解决这两个问题。在本案例研究中使用了一套建模工具。根据中试试验，选择总氯、254 nm处的紫外吸光度、电导率和溶解氧进行监测。在平衡成本和效益时，发现四个水质监测站和四个污染事件监测站足以满足该市的需要。水质和安全地点之间只有一个共用地点，所需安全监测器的数量不受系统需求的影响。经确认，为了减轻污染事件的影响，最大限度地缩短反应时间至关重要。
Concerns about water quality and possible intentional contamination of water distribution systems are making on‐line monitoring an increasingly important priority for many water utilities. The city of Ann Arbor (Mich.) evaluated different water quality monitoring parameters, tested multiple manufacturers— monitoring equipment, and evaluated how to effectively locate monitoring equipment within the distribution system to address these two concerns. A suite of modeling tools was used in this case study. Total chlorine, ultraviolet absorbance at 254 nm, conductivity, and dissolved oxygen were selected for monitoring based on pilot testing. When balancing costs and benefits, four stations for monitoring water quality and four stations for monitoring contamination events were found to be sufficient for the city. Only one location was common between water quality and security sites, and the number of security monitors needed was not affected by system demands. It was confirmed that it is critical to minimize response time in order to mitigate the effects of a contamination event.