Facilitated iron reduction as a possible means of rejuvenating phosphorus removal performance of filtration substrates

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dc.contributor.authorRosenquist, Shawn E.en
dc.contributor.authorLevy, C. L.en
dc.contributor.authorSell, S. T.en
dc.contributor.authorHession, W. Cullyen
dc.contributor.authorEick, Matthew J.en
dc.contributor.authorVaughan, David H.en
dc.contributor.departmentBiological Systems Engineeringen
dc.contributor.departmentSchool of Plant and Environmental Sciencesen
dc.date.accessed2014-05-29en
dc.date.accessioned2014-05-30T13:13:45Zen
dc.date.available2014-05-30T13:13:45Zen
dc.date.issued2011en
dc.description.abstractIn order to mitigate nutrient pollution in surface runoff more sustainably, the finite capacity for phosphorus (P) sequestration in best management practices (BMP) that rely heavily on sorption processes must be addressed. These BMP include sand filters, bioretention cells, and several types of constructed wetland. This study investigated facilitated microbial reduction of iron-based filtration substrates to promote controlled release of P previously sequestered by the BMP, P harvest for recycling, and rejuvenation of the substrate sorption capacity. Total dissolved P was well correlated with total dissolved iron during the reduction process, indicating that microbial iron reduction was capable of releasing previously sequestered P from substrates. Furthermore, results indicated that a sufficient carbon source was necessary but addition of a microbial culture was not necessary to facilitate iron reduction. While a large percentage of the previously sequestered P was removed, the process was much slower than initial sequestration of P by adsorption, and further research is needed to promote a more rapid release of P in order to optimize the rejuvenation process for field application.en
dc.description.sponsorshipNSF 0649079en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRosenquist, S. E.; Levy, C. L.; Sell, S. T.; Hession, W. C.; Eick, M. J.; Vaughan, D. H., "Facilitated iron reduction as a possible means of rejuvenating phosphorus removal performance of filtration substrates," Transactions of the ASABE. 54(2): 715-722. (doi: 10.13031/2013.36474) @2011en
dc.identifier.doihttps://doi.org/10.13031/2013.36474en
dc.identifier.issn2151-0032en
dc.identifier.urihttp://hdl.handle.net/10919/48194en
dc.identifier.urlhttp://elibrary.asabe.org/abstract.asp?aid=36474&t=3&dabs=Y&redir=&redirType=en
dc.language.isoenen
dc.publisherAmerican Society of Agricultural and Biological Engineersen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectBest management practicesen
dc.subjectDesorptionen
dc.subjectEutrophicationen
dc.subjectFiltrationen
dc.subjectPhosphorusen
dc.subjectSorptionen
dc.subjectWater qualityen
dc.subjectConstructed wetlandsen
dc.subjectManagement-practicesen
dc.subjectNutrient removalen
dc.subjectSoil-phosphorusen
dc.subjectVertical flowen
dc.subjectWaste-wateren
dc.subjectStormwateren
dc.subjectSedimenten
dc.subjectPhosphateen
dc.subjectSorptionen
dc.subjectAgricultureen
dc.titleFacilitated iron reduction as a possible means of rejuvenating phosphorus removal performance of filtration substratesen
dc.title.serialTransactions of the ASABEen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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