The removal of low levels of poliovirus from water by coagulation with alum

Simple item page
dc.contributor.authorGraham, Richard Gilberten
dc.contributor.committeechairHoehn, Robert C.en
dc.contributor.committeecochairBates, Robert C.en
dc.contributor.committeememberBoardman, Gregory D.en
dc.contributor.departmentEnvironmental Sciences and Engineeringen
dc.date.accessioned2014-03-14T21:41:24Zen
dc.date.adate2010-07-28en
dc.date.available2014-03-14T21:41:24Zen
dc.date.issued1977-12-15en
dc.date.rdate2010-07-28en
dc.date.sdate2010-07-28en
dc.description.abstractHuman enteric viruses are present at low levels in sources of potable water. Due to the low minimum infective dose required for such viruses, these low levels are of public health significance and will become more important as water reuse increases. The effectiveness of alum coagulation for virus removal was evaluated using a synthetic water seeded with monodispersed poliovirus LScl. Experiments were done using 10(3),10(4),10(6) Plaque Forming Units (PFU) per liter. A microporous filter concentration technique was used post treatment to increase the virus titer to make possible virus enumeration by plaque assay on BGM cell cultures. Preliminary work was done to determine the efficiency of the concentration technique at 10(3),10(4),10(6)and PFU per liter. An average of 30.9 per cent of the original PFU were recovered. Two coagulation test methods were used at the lower virus titers. In one, virus was added to the system after the coagulant during the flash mix period and in the other, the coagulant was added to water already seeded with virus. Removals were similar for both conditions. Alum coagulation was found to remove 95 percent of the virus present at the low titers. This efficiency of virus removal is similar to that observed at high initial virus titers. Therefore, it appears that alum coagulation is an effective virus removal method.en
dc.description.degreeMaster of Scienceen
dc.format.extent60 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-07282010-020155en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-07282010-020155/en
dc.identifier.urihttp://hdl.handle.net/10919/43941en
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1977.G724.pdfen
dc.relation.isformatofOCLC# 21425404en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1977.G724en
dc.subject.lcshAlumen
dc.subject.lcshPoliovirusen
dc.subject.lcshWater -- Purificationen
dc.titleThe removal of low levels of poliovirus from water by coagulation with alumen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineEnvironmental Sciences and Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
LD5655.V855_1977.G724.pdf
Size:
2.06 MB
Format:
Adobe Portable Document Format
Download

Collections

Masters Theses