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dc.contributor.authorFu, Guangtao
dc.contributor.authorButler, David
dc.date.accessioned2013-05-24T14:25:54Z
dc.date.issued2012
dc.description.abstractIn recent years integrated models have been developed to simulate the entire urban wastewater system, including urban drainage systems, wastewater treatment plants, and receiving waterbodies. This paper uses such an integrated urban wastewater model to analyze the frequency of receiving water quality in an urban wastewater system with the aim of assessing the overall system performance during rainfall events. The receiving water quality is represented by two indicators: event mean dissolved oxygen (DO) concentration and event mean ammonium concentration. The compliance probability of the water quality indicators satisfying a specific threshold is used to represent the system performance, and is derived using the rainfall events from a series of 10 years' rainfall data. A strong correlation between the depth of each rainfall event and the associated volume of combined sewer overflow (CSO) discharges is revealed for the case study catchment, while there is a low correlation between the intensity/duration of the rainfall event and the volume of the CSO discharges. The frequency analysis results obtained suggest that the event mean DO and ammonium concentrations have very different characteristics in terms of compliance probabilities at two discharging points for CSO and wastewater treatment plant effluent, respectively. In general, the simulation results provide an understanding of the performance of the integrated urban wastewater system and can provide useful information to support water quality management.en_GB
dc.identifier.citationVol. 65 (12), pp. 2112 - 2117en_GB
dc.identifier.doi10.2166/wst.2012.127
dc.identifier.urihttp://hdl.handle.net/10871/9634
dc.language.isoenen_GB
dc.publisherIWA Publishingen_GB
dc.relation.urlhttp://dx.doi.org/10.2166/wst.2012.127en_GB
dc.subjectFresh Wateren_GB
dc.subjectOxygenen_GB
dc.subjectRiversen_GB
dc.subjectUrbanizationen_GB
dc.subjectWater Pollutantsen_GB
dc.subjectTheoretical modelsen_GB
dc.subjectcombined sewer overflowen_GB
dc.subjectfrequency analysisen_GB
dc.subjectintegrated modellingen_GB
dc.subjecturban drainage systemen_GB
dc.subjectwater qualityen_GB
dc.titleFrequency analysis of river water quality using integrated urban wastewater modelsen_GB
dc.typeArticleen_GB
dc.date.available2013-05-24T14:25:54Z
dc.identifier.issn0273-1223
exeter.place-of-publicationEngland
dc.descriptionCopyright © IWA Publishing 2012.The definitive peer-reviewed and edited version of this article is published in Water Science and Technology Volume 65 Issue 12, pp. 2112–2117 (2012), DOI: 10.2166/wst.2012.127 and is available at www.iwapublishing.com.en_GB
dc.identifier.journalWater Science and Technologyen_GB


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