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dc.contributor.authorShugart, Steven Leeen_US
dc.date.accessioned2014-03-14T21:41:07Z
dc.date.available2014-03-14T21:41:07Z
dc.date.issued1976-03-05en_US
dc.identifier.otheretd-07242012-040030en_US
dc.identifier.urihttp://hdl.handle.net/10919/43884
dc.description.abstractThe purpose of this investigation was to determine the extent of phosphorus readsorption on Occoquan sediments and the amount of subsequent removal because of settling of the particles with time. Occoquan sediments were placed in six polyurethane cylinders and submerged. In two separate experiments, the cylinders were driven anaerobic, which allowed phosphorus, previously bound in the sediments, to release. The sedimentâ water system was then reaerated and mixed with a porous air diffuser. Analyses were conducted before and after the mixing period. From the results obtained, the following conclusions were drawn: phosphate readsorption occurred upon mixing the system, and as the turbidity decreased, the phosphate concentration decreased; phosphate readsorption occurred in a twoâ step process; each suspension tended toward equilibrium after mixing; interstitial waters contributed significant amounts of phosphorus upon mixing of the sedimentâ water systems; Occoquan sediments released variable amounts of phosphorus even within samples from similar sites; sediments from the Occoquan Creek arm contained less phosphorus than Bull Run sediments; and sediments low in phosphorus concentrations removed greater amounts of phosphorus in a shorter period of time.en_US
dc.format.mediumBTDen_US
dc.publisherVirginia Techen_US
dc.relation.haspartLD5655.V855_1976.S55.pdfen_US
dc.subjectphosphate readsorptionen_US
dc.subject.lccLD5655.V855 1976.S55en_US
dc.titlePhosphorus readsorption on Occoquan sedimentsen_US
dc.typeThesisen_US
dc.contributor.departmentEnvironmental Sciences and Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineEnvironmental Sciences and Engineeringen_US
dc.contributor.committeechairHoehn, Robert C.en_US
dc.contributor.committeememberRandall, Clifford W.en_US
dc.contributor.committeememberSherrard, Joseph H.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-07242012-040030/en_US
dc.date.sdate2012-07-24en_US
dc.date.rdate2012-07-24
dc.date.adate2012-07-24en_US


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