کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4483466 | 1316889 | 2012 | 11 صفحه PDF | دانلود رایگان |
An innovative framework for the performance assessment of a traditional water treatment plant (WTP) is presented that integrates the concepts of reliability, robustness, and Quantitative Microbial Risk Assessment (QMRA). Performance assessment for a WTP comprised of three units (i.e., unit 1: Coagulation/Flocculation and Sedimentation; unit 2: Filtration, and unit 3: Disinfection) was conducted. Performance functions for units 1, 2, and units 1 and 2 combined, were constructed by integrating turbidity robustness indices. Performance function for chlorine disinfection was developed based on the difference between achieved and required CT values. A health-based performance function was developed by comparing the target daily infection rate to the site-specific infection rate. It was used to identify whether the health-based target was met during the failures of units 1 to 3. Results obtained from the proposed performance functions can be used by operators to ensure that multiple barriers perform successfully under variable conditions.
Figure optionsDownload high-quality image (141 K)Download as PowerPoint slideHighlights
► A framework for performance assessment of a water treatment plant is presented.
► The assessment incorporates the concepts of reliability, robustness and risk.
► Performance assessment functions for different unit operations are developed.
► Data from an existing water treatment plant was used to assess the methodology.
Journal: Water Research - Volume 46, Issue 6, 15 April 2012, Pages 1673–1683