Release and runoff/infiltration removal of Escherichia coli, enterococci, and total coliforms from land-applied dairy cattle manure

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dc.contributor.advisorHill, Robert Len_US
dc.contributor.authorBlaustein, Ryan Andrewen_US
dc.contributor.departmentEnvironmental Science and Technologyen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2015-02-05T06:42:45Z
dc.date.available2015-02-05T06:42:45Z
dc.date.issued2014en_US
dc.description.abstractSimulating the rainfall-induced release of indicator bacteria from manure is essential to microbial fate and transport modeling with regard to water quality and food safety. Experiments were conducted to determine the effects of rainfall intensity, surface slope, and scale on the release of Escherichia coli, enterococci, and total coliforms from land-applied dairy manure. Rainfall intensity did not affect bacterial release dependencies on rainfall depth, but it did have a significant effect on the post-rainfall quantities of indicator bacteria in soil. While bacterial concentrations were evenly released into runoff and infiltration, the surface slope controlled the partitioning of total released bacterial loads. The proportion of E. coli released from manure exceeded enterococci, especially with infiltration flow. Scale had strong, inverse effects on the recovery of land-applied bacteria with runoff. These results will be used to improve microbial fate and transport models, critical for risk assessment of microbial contamination in the environment.en_US
dc.identifierhttps://doi.org/10.13016/M2HC84
dc.identifier.urihttp://hdl.handle.net/1903/16118
dc.language.isoenen_US
dc.subject.pqcontrolledEnvironmental scienceen_US
dc.subject.pqcontrolledMicrobiologyen_US
dc.subject.pqcontrolledSoil sciencesen_US
dc.subject.pquncontrolledDairy cattle manureen_US
dc.subject.pquncontrolledE. colien_US
dc.subject.pquncontrolledEnterococcien_US
dc.subject.pquncontrolledRainfallen_US
dc.subject.pquncontrolledRunoff/infiltrationen_US
dc.subject.pquncontrolledScale effecten_US
dc.titleRelease and runoff/infiltration removal of Escherichia coli, enterococci, and total coliforms from land-applied dairy cattle manureen_US
dc.typeThesisen_US

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