Real-time modeling of trihalomethane formation in a full-scale distribution system

被引：6
|
作者：
Wert, Eric C. [1 ]
Bolding, Jim [2 ]
Rexing, David J. [1 ]
Zegers, Ronald E. [1 ]
机构：
[1] SNWA, Las Vegas, NV 89193 USA
[2] Argus Engn Inc, Denver, CO 80220 USA
来源：
JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA | 2012年 / 61卷 / 06期
关键词：
chlorination; disinfection byproduct (DBP); hydraulic model; online water quality instrumentation; predictive models; trihalomethane (THM); DRINKING-WATER; OZONATION;
D O I：
10.2166/aqua.2012.101
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Using a combination of modeling and online water quality instrumentation, utilities can produce real-time predictions of trihalomethane (THM) formation in their distribution system. In this study, an empirical model was used to predict THM formation and embedded into a full-scale supervisory control and data acquisition (SCADA) system. Online water quality instrumentation provided input values to the THM model for total organic carbon (TOC), pH, and temperature. A hydraulic model was also embedded in SCADA, and provided residence time input values for the wholesale portion of the distribution system, which included large lateral pipelines, reservoirs, and pump forebays. Results from a 3-year evaluation showed that predicted THM concentrations were within 10 mu g/L of the measured value 81% of the time. Real-time model predictions can provide an effective way to monitor the formation of THMs in a full-scale distribution system.
引用
收藏
页码：352 / 363
页数：12
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