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Article: Modeling sewage leakage to surrounding groundwater and stormwater drains

TitleModeling sewage leakage to surrounding groundwater and stormwater drains
Authors
Issue Date2012
PublisherIWA Publishing. The Journal's web site is located at http://www.iwaponline.com/wst/default.htm
Citation
Water Science and Technology, 2012, v. 66 n. 12, p. 2659-2665 How to Cite?
AbstractUnderground sewage pipe systems deteriorate over time resulting in cracks and joint defects. Sewage thus leaks out and contaminates the surrounding groundwater and the surface water in stormwater drains. Many studies have investigated the problem of sewage leakage but no published studies, to the best knowledge of the authors, have examined the hydrologic interactions between leaky sewage pipes, groundwater and stormwater drains. This study numerically models such interactions using generic conditions in Singapore. It first develops accurate representations of weep holes and leaky sewage pipes, and further shows the long-term and short-term system responses to rainfall events. Some of the implications include: (1) quality of water seeping into the drains tends to be low in dry years; (2) complete contaminant attenuation after pipe rehabilitation takes several years; (3) responses to rainfall events at weep holes are immediate but the effects on sewage leakage might only show up a few days later. The simulation results allow us to better understand the local-scale migration of sewage leakage from a sewage pipe to nearby stormwater drains. With calibrations and verifications with local field data, the modeling framework would be applicable and beneficial to the sewage leakage monitoring and sewage pipe rehabilitation worldwide.
Persistent Identifierhttp://hdl.handle.net/10722/183625
ISSN
2015 Impact Factor: 1.064
2015 SCImago Journal Rankings: 0.469
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLy, DK-
dc.contributor.authorChui, TFM-
dc.date.accessioned2013-05-28T07:43:47Z-
dc.date.available2013-05-28T07:43:47Z-
dc.date.issued2012-
dc.identifier.citationWater Science and Technology, 2012, v. 66 n. 12, p. 2659-2665-
dc.identifier.issn0273-1223-
dc.identifier.urihttp://hdl.handle.net/10722/183625-
dc.description.abstractUnderground sewage pipe systems deteriorate over time resulting in cracks and joint defects. Sewage thus leaks out and contaminates the surrounding groundwater and the surface water in stormwater drains. Many studies have investigated the problem of sewage leakage but no published studies, to the best knowledge of the authors, have examined the hydrologic interactions between leaky sewage pipes, groundwater and stormwater drains. This study numerically models such interactions using generic conditions in Singapore. It first develops accurate representations of weep holes and leaky sewage pipes, and further shows the long-term and short-term system responses to rainfall events. Some of the implications include: (1) quality of water seeping into the drains tends to be low in dry years; (2) complete contaminant attenuation after pipe rehabilitation takes several years; (3) responses to rainfall events at weep holes are immediate but the effects on sewage leakage might only show up a few days later. The simulation results allow us to better understand the local-scale migration of sewage leakage from a sewage pipe to nearby stormwater drains. With calibrations and verifications with local field data, the modeling framework would be applicable and beneficial to the sewage leakage monitoring and sewage pipe rehabilitation worldwide.-
dc.languageeng-
dc.publisherIWA Publishing. The Journal's web site is located at http://www.iwaponline.com/wst/default.htm-
dc.relation.ispartofWater Science and Technology-
dc.rightsWater Science and Technology. Copyright © IWA Publishing.-
dc.rights©IWA Publishing 2012. The definitive peer-reviewed and edited version of this article is published in Water Science and Technology v. 66 n. 12, p. 2659-2665, 2012. DOI 10.2166/wst.2012.496 and is available at www.iwapublishing.com-
dc.subject.meshCyclonic Storms-
dc.subject.meshDrainage, Sanitary-
dc.subject.meshGroundwater - chemistry-
dc.subject.meshModels, Chemical-
dc.subject.meshSewage - chemistry-
dc.titleModeling sewage leakage to surrounding groundwater and stormwater drainsen_US
dc.typeArticleen_US
dc.identifier.emailChui, TFM: maychui@hku.hk-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.2166/wst.2012.496-
dc.identifier.pmid23109583-
dc.identifier.scopuseid_2-s2.0-84872710110-
dc.identifier.volume66-
dc.identifier.issue12-
dc.identifier.spage2659-
dc.identifier.epage2665-
dc.identifier.isiWOS:000313397400020-
dc.publisher.placeUnited Kingdom-

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