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dc.contributor.authorLavinder, Steven Roberten_US
dc.date.accessioned2012-11-17en_US
dc.date.accessioned2014-03-14T21:50:00Z
dc.date.available2012-11-17en_US
dc.date.available2014-03-14T21:50:00Z
dc.date.issued1987-06-05en_US
dc.date.submitted2012-11-17en_US
dc.identifier.otheretd-11172012-040344en_US
dc.identifier.urihttp://hdl.handle.net/10919/45820
dc.description.abstract

A pilot plant study was conducted in Newport News, Virginia to investigate the effectiveness of powdered activated carbon [PAC] and granular activated carbon [GAC], with and without preoxidation, for reducing trihalomethane [THM] precursor concentrations in Harwood's Mill Reservoir water. Preoxidation with ozone followed by GAC is referred to as the "biological activated carbonâ [BAC] process. This study showed that the GAC and BAC processes obtained the same level of organic removal; however, BAC would provide longer bed life and require less carbon than the GAC process. PAC treatment of alum coagulated water provided significantly higher TOC and THMFP removals than alum coagulation alone. The use of a preoxidant (ozone) with PAC slightly improved the organic removal efticiency. While treatment by PAC increased THMFP removals, it was not as efficient as the GAC and BAC processes. UV absorbance measured at 254 nm and TOC were found to be good surrogates for THMFP in the GAC column, but not in the BAC column.

en_US
dc.format.mediumBTDen_US
dc.publisherVirginia Techen_US
dc.relation.haspartLD5655.V855_1987.L384.pdfen_US
dc.subjectWateren_US
dc.subject.lccLD5655.V855 1987.L384en_US
dc.titleEvaluation of activated carbon processes for removing trihalomethane precursors from a surface water impoundmenten_US
dc.typethesisen_US
dc.contributor.departmentEnvironmental Engineeringen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
dc.contributor.committeechairHoehn, Robert C.en_US
dc.contributor.committeememberNovak, John T.en_US
dc.contributor.committeememberSroeylok, Vernonen_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11172012-040344/en_US


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