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USE OF DRINKING WATER TREATMENT RESIDUALS AS A SOIL AMENDMENT FOR STORMWATER NUTRIENT TREATMENT

dc.contributor.advisorDavis, Allen Pen_US
dc.contributor.authorO'Neill, Sean Williamen_US
dc.date.accessioned2010-10-07T06:15:56Z
dc.date.available2010-10-07T06:15:56Z
dc.date.issued2010en_US
dc.identifier.urihttp://hdl.handle.net/1903/10973
dc.description.abstractStormwater runoff has been implicated as a major source of excess nutrients to surface waters, contributing to the development of eutrophic conditions. Bioretention, a promising technology for urban stormwater pollution treatment, was investigated to determine if an aluminum-based water treatment residual (WTR) amended bioretention soil media (BSM) could adsorb phosphorus to produce discharge concentrations below 25 μg/L. Batch, small column, and vegetated column studies were employed to determine both the optimal BSM mixture and media performance. Media tests demonstrated P adsorption proportional to WTR addition. Final selected experimental media consisted of 75% sand, 10% silt, 5.8% clay, 5.2% WTR, and 3.4% bark mulch (air dry mass basis).This media showed excellent P removal relative to a non-WTR-amended media. Whereas the control media leached P (71.1% increase in mass), the experimental media adsorbed 85.7% of the P mass applied, displaying a cumulative effluent EMC of 16.1 μg/L, below the 25 μg/L goal.en_US
dc.titleUSE OF DRINKING WATER TREATMENT RESIDUALS AS A SOIL AMENDMENT FOR STORMWATER NUTRIENT TREATMENTen_US
dc.typeThesisen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentCivil Engineeringen_US
dc.subject.pqcontrolledEngineering, Environmentalen_US
dc.subject.pquncontrolledbioretentionen_US
dc.subject.pquncontrolledphosphorusen_US
dc.subject.pquncontrolledstormwateren_US
dc.subject.pquncontrolledwater treatment residualen_US
dc.subject.pquncontrolledWTRen_US


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