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240814s2024 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2024.233
|2 doi
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
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|a Yang, Liyuan
|e verfasserin
|4 aut
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|a Identification of illicit discharges in sewer networks by an SWMM-Bayesian coupled approach
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 14.08.2024
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|a Date Revised 14.08.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2024 The Authors This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY-NC-ND 4.0), which permits copying and redistribution for non-commercial purposes with no derivatives, provided the original work is properly cited (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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|a Illicit discharges into sewer systems are a widespread concern within China's urban drainage management. They can result in unforeseen environmental contamination and deterioration in the performance of wastewater treatment plants. Consequently, pinpointing the origin of unauthorized discharges in the sewer network is crucial. This study aims to evaluate an integrative method that employs numerical modeling and statistical analysis to determine the locations and characteristics of illicit discharges. The Storm Water Management Model (SWMM) was employed to track water quality variations within the sewer network and examine the concentration profiles of exogenous pollutants under a range of scenarios. The identification technique employed Bayesian inference fused with the Markov chain Monte Carlo sampling method, enabling the estimation of probability distributions for the position of the suspected source, the discharge magnitude, and the commencement of the event. Specifically, the cases involving continuous release and multiple sources were examined. For single-point source identification, where all three parameters are unknown, concentration profiles from two monitoring sites in the path of pollutant transport and dispersion are necessary and sufficient to characterize the pollution source. For the identification of multiple sources, the proposed SWMM-Bayesian strategy with improved sampling is applied, which significantly improves the accuracy
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|a Journal Article
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|a Bayesian-MCMC
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|a SWMM-Bayesian
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|a illicit discharge
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|a sewer network
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|a source identification
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| 650 |
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|a Sewage
|2 NLM
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| 650 |
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|a Water Pollutants, Chemical
|2 NLM
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| 700 |
1 |
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|a Huang, Biao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Jiachun
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 90(2024), 3 vom: 14. Aug., Seite 951-967
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnns
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| 773 |
1 |
8 |
|g volume:90
|g year:2024
|g number:3
|g day:14
|g month:08
|g pages:951-967
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|u http://dx.doi.org/10.2166/wst.2024.233
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