Effectiveness of water treatment methods for removal of haloforms and their precursors

Simple item page
dc.contributor.authorGoode, Robert Paulen
dc.contributor.committeechairHoehn, Robert C.en
dc.contributor.committeememberRandall, Clifford W.en
dc.contributor.committeememberKing, Paul H.en
dc.contributor.departmentEnvironmental Sciences and Engineeringen
dc.date.accessioned2014-03-14T21:41:23Zen
dc.date.adate2010-07-28en
dc.date.available2014-03-14T21:41:23Zen
dc.date.issued1977-03-05en
dc.date.rdate2010-07-28en
dc.date.sdate2010-07-28en
dc.description.abstractUsing a simulated lake water containing humic acid, various combinations of water treatment processes were utilized to determine their effect on precursor removal and haloform removal subsequent to their formation. Laboratory tests t including temperature, pH, alkalinity, absorbance, and chlorine residual, were performed throughout the treatment process. Samples were collected and shipped to California Analytical Laboratory for volatile organic analysis. The results of this study supported those from past studies in that it showed humic .acid to be a precursor to volatile organics. The data indicated that effective precursor removal could be achieved by coagulation, flocculation, and sedimentation, especially when followed by doses of activated carbon in the range of 30-50 mg/l. It was also observed that the chlorine concentration had more effect on the production of volatile organics than the humic acid concentration. The reaction between humic acid and chlorine was not instantaneous as haloform concentrations continued to increase for up to eight or more hours after chlorination. The data appear to show that the most effective treatment to insure minimum concentrations of haloforms in finished waters is precursor removal prior to chlorination. If the raw water is a surface water, then coagulation, flocculation, and sedimentation, and possible powdered activated carbon treatment, should proceed chlorination. However, if prechlorination is necessary, chlorination should be rapidly succeeded by the routine water treatment processes which would insure reasonably low haloform levels in finished water.en
dc.description.degreeMaster of Scienceen
dc.format.extentix, 135 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-07282010-020142en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-07282010-020142/en
dc.identifier.urihttp://hdl.handle.net/10919/43939en
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1977.G66.pdfen
dc.relation.isformatofOCLC# 39802455en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectwater treatmenten
dc.subject.lccLD5655.V855 1977.G66en
dc.titleEffectiveness of water treatment methods for removal of haloforms and their precursorsen
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.G66.pdf
Size:
3.68 MB
Format:
Adobe Portable Document Format
Download

Collections

Masters Theses