Biological Health Assessment of an Industrial Wastewater Treatment Facility

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dc.contributor.authorZivich, Jamie Dionneen
dc.contributor.committeechairBoardman, Gregory D.en
dc.contributor.committeememberScardina, Robert P.en
dc.contributor.committeememberNovak, John T.en
dc.contributor.departmentEnvironmental Engineeringen
dc.date.accessioned2014-03-14T21:39:29Zen
dc.date.adate2011-08-08en
dc.date.available2014-03-14T21:39:29Zen
dc.date.issued2011-06-30en
dc.date.rdate2011-08-08en
dc.date.sdate2011-07-01en
dc.description.abstractThe biological treatment of wastewaters from an industry was studied. Among the more important wastewater constituents of concern were high levels of suspended solids, due to graphite and nitrocellulose, the solvents, ethanol and acetone, and nitroglycerine (NG). The goal of this project was divided into four objectives. The impacts of graphite on a microbial population were evaluated. Sequencing batch reactors (SBRs) were used to monitor the effects of graphite on mixed liquor suspended solids (MLSS), removal of soluble chemical oxygen demand (sCOD), and specific oxygen uptake rates (sOUR). Graphite appeared to have no adverse effect on the microbes. The potential benefits of adding sucrose, nitrogen, and phosphorus to SBRs were evaluated. The MLSS was maintained at 1,250 mg/L, similar to the microbial population in the suspended growth system at the industry. Sucrose addition increased the sCOD removals and sOUR. No direct effect was observed with the addition of nitrogen and phosphorus. The treatability of acetone and ethanol was studied through sOUR and batch testing to determine bacterial response to solvents. Both solvents were utilized by the microbes. The concentrations tested proved to be beneficial, not inhibitory. Ethanol and a 50/50 mixture of acetone and ethanol were more viable substrates than acetone. NG treatability was examined under anoxic and aerobic conditions in SBRs and batch biological reactors. NG degradation occurred under anoxic conditions, but was more favorable in aerobic environments. NG was degraded in all SBR tests to below detection limit (0.5 mg/L); therefore, the optimal treatment could not be determined.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-07012011-165659en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-07012011-165659/en
dc.identifier.urihttp://hdl.handle.net/10919/43523en
dc.publisherVirginia Techen
dc.relation.haspartZivich_JD_T_2011.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectindustrial wastewateren
dc.subjectgraphiteen
dc.subjectsucroseen
dc.subjectnitroglycerineen
dc.subjectsequencing batch reactorsen
dc.titleBiological Health Assessment of an Industrial Wastewater Treatment Facilityen
dc.typeThesisen
thesis.degree.disciplineEnvironmental Planningen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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