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dc.contributor.authorLucas, William C
dc.contributor.authorGreenway, Margaret
dc.date.accessioned2017-05-03T12:08:13Z
dc.date.available2017-05-03T12:08:13Z
dc.date.issued2011
dc.date.modified2012-02-16T05:26:46Z
dc.identifier.issn1061-4303
dc.identifier.urihttp://hdl.handle.net/10072/42747
dc.description.abstractIn bioretention systems used for stormwater treatment, runoff interception improves with increased infiltration rates. However, nitrogen retention improves with increased retention time or decreasing infiltration rates. These contrasting responses were analyzed in 240-L experimental mesocosms using a variety of media treatments. The mesocosms were vegetated, except for one barren control. Dual-stage outlets were installed to extend retention time and equalize hydraulic responses. One unregulated treatment was free-draining. This part 1 paper presents the media properties and hydraulic responses. The highly aggregated media had saturated hydraulic conductivities ranging from 20.7 to 59.6 cm/h in August 2008 (austral winter), which increased to 42.8 to 110.6 cm/h in March 2009 (austral summer). The outlet regulated mesocosms provided retention over 8 times longer than the free-draining mesocosms, while still being able to capture large events. The outlets provide adaptive management for bioretention design to improve both runoff capture and nitrogen retention.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherWater Environment Federation
dc.publisher.placeUnited States
dc.publisher.urihttps://onlinelibrary.wiley.com/doi/10.2175/106143010X12780288628697
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom692
dc.relation.ispartofpageto702
dc.relation.ispartofissue8
dc.relation.ispartofjournalWater Environment Research
dc.relation.ispartofvolume83
dc.rights.retentionY
dc.subject.fieldofresearchChemical sciences
dc.subject.fieldofresearchBiological sciences
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchcode34
dc.subject.fieldofresearchcode31
dc.subject.fieldofresearchcode40
dc.titleHydraulic Response and Nitrogen Retention in Bioretention Mesocosms with Regulated Outlets: Part I-Hydraulic Response
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.date.issued2011
gro.hasfulltextNo Full Text
gro.griffith.authorGreenway, Margaret
gro.griffith.authorLucas, Bill


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