Index Catalog // ScholarsArchive@OSU

Down-borehole permeable barrier reactor : primary substrate selection for aerobic dichlorophenol degradation

Creator:: Kaslik, Peter J.
Abstract:: In situ bioremediation of pentachlorophenol-contaminated ground water in a sequential anaerobic-aerobic down borehole permeable barrier reactor requires a non-toxic primary substrate for dichlorophenol cometabolism. Serum bottle tests comparing the effectiveness of eight primary substrates for aerobic dichlorophenol degradation showed phenol to be the most effective followed by imitation vanilla flavoring,...
Resource Type:: Masters Thesis
Full Text:: approved: Sandra L. Woods In situ bioremediation of pentachlorophenol-contaminated ground water in a

A model for the prediction of biologically mediated reductive dechlorination pathways

Creator:: Cozza, Cynthia L.
Abstract:: The environment has been exposed to a number of hazardous chlorinated organic compounds. These compounds may be anaerobically biotransformed by sequential reductive dechlorination reactions in which the chlorine atoms are replaced with hydrogen atoms. Because reductive dechlorination processes may occur very slowly in the environment and chlorine position affects the...
Resource Type:: Masters Thesis
Full Text:: Biologically Mediated Reductive Dechlorination Pathways. Abstract Approved:(Redacted for Privacy Sandra L

Startup and performance of a gas-permeable-membrane-supported (GPMS) biofilm system using a mixed culture of methylotrophs to degrade methylene chloride, chloroform, and carbon tetrachloride

Creator:: Ely, Roger L.
Abstract:: The methane monooxygenase (MMO) enzyme, used by methylotrophs to oxidize methane, has been shown to possess quite broad substrate specificity, being able to oxidize many organic compounds including n-alkanes, n-alkenes, ethers, and aromatic, alicyclic, and heterocyclic compounds. In this research, it was sought to determine whether a gas-permeable-membrane-supported (GPMS) biofilm...
Resource Type:: Masters Thesis
Full Text:: Chloride Chloroform, and Carbon Tetrachloride. Abstract approved: Redacted for Privacy Sandra L. Woods

The effect of environmental conditions on the reductive dechlorination of pentachlorophenol by a mixed, methanogenic culture

Creator:: Stuart, Sheryl L.
Resource Type:: Dissertation
Full Text:: Mixed, Methanogenic Culture. Abstract approved: Sandra L. Woods Reductive dechlorination is an energy

Demonstration of a permeable barrier technology for the in-situ bioremediation of pentachlorophenol contaminated groundwater

Creator:: Cole, Jason David
Abstract:: A pilot scale demonstration of a biological permeable barrier was conducted in a pentachlorophenol-contaminated aquifer at a wood preserving facility. A permeable reactor was constructed to fit within a large diameter well. Arranged in series, a cylindrical reactor 24" x 36" (0.61 x 0.91m) (diameter x height) was partitioned to...
Resource Type:: Dissertation
Full Text:: opportunity to thank my major professor Dr. Sandra Woods for the guidance and enthusiasm that she provided

Reductive, dechlorination of sediment-sorbed polychlorinated biphenyls by vitamin B₁₂(subscript s)

Creator:: Trobaugh, Darin James
Abstract:: The reductive dechlorination of chlorobiphenyls in sediment by titanium(III) citrate-reduced vitamin Bus was studied in batch reactors. Long term ampoule studies demonstrated reductive dechlorination of sediment-sorbed 2,3,4,5,6-pentachlorobiphenyl (2,3,4,5,6-PeCB) to tetra-, tri-, di-, and monochlorobiphenyl products. Over 50% chlorine removal was observed over 160 days. The results of the ampoule experiment...
Resource Type:: Masters Thesis
Full Text:: Dechlorination of Sediment-Sorbed Polychlorinated Biphenyls by Vitamin B12s. Abstract approved.:--- Sandra L

A kinetic approach for the determination of sorption rate constants using a column-type reactor

Creator:: Patrier, Lionel
Abstract:: A Langmuir sorption model incorporating a second step of irreversible absorption was applied to a model soil system. The column was packed with cellulose triacetate; pulse and step input tests with 3,4-dichlorophenol were performed; the effluent concentration was measured by electron capture detector gas chromatography and sorption rate constants were...
Resource Type:: Masters Thesis
Full Text:: Privacy Abstract approved:_ ,..--- Sandra L. Woods A Langmuir sorption model incorporating a second step

Down-borehole permeable barrier reactor : verification of complete mineralization of pentachlorophenol in a sequential anaerobic-aerobic process

Creator:: Roberts, David Bradley
Resource Type:: Masters Thesis
Full Text:: of Pentachlorophenol in a Sequential Anaerobic-Aerobic Process Abstract approved. Sandra L. Woods

The development of a gas-permeable-membrane-supported (GPMS) biofilm reactor for the combined anaerobic/aerobic treatment of polychlorinated biphenyls

Creator:: Polonsky, Jon D.
Abstract:: A continuous flow, gas-permeable-membrane-supported (GPMS) biofilm reactor was developed to facilitate the treatment of polychlorinated biphenyls (PCBs). The GPMS biofilm reactor consisted of a cylindrical glass vessel made up of three compartments: the gas, liquid and headspace compartments. A gas-permeable membrane separated the bottom gas compartment from the liquid compartment....
Resource Type:: Masters Thesis
Full Text:: Redacted for Privacy Sandra L. wooas A continuous flow, gas-permeable-membrane-supported (GPMS) biofilm

Measurement of the rates of reductive dechlorination of chlorinated phenols

Creator:: Nicholson, David K.
Abstract:: Knowledge of a compound's degradation pathway is crucial to the assessment of risk at contaminated sites. Pentachlorophenol and its metabolic products can serve as model compounds to study the fate and transport of halogenated aromatic compounds in the environment. Acclimation of anaerobic sewage sludge to pentachlorophenol produced a microbial consortium...
Resource Type:: Masters Thesis
Full Text:: I would like to gratefully acknowledge the help of my advisor, Dr. Sandra L. Woods, and the other

ScholarsArchive@OSU

Down-borehole permeable barrier reactor : primary substrate selection for aerobic dichlorophenol degradation

A model for the prediction of biologically mediated reductive dechlorination pathways

Startup and performance of a gas-permeable-membrane-supported (GPMS) biofilm system using a mixed culture of methylotrophs to degrade methylene chloride, chloroform, and carbon tetrachloride

The effect of environmental conditions on the reductive dechlorination of pentachlorophenol by a mixed, methanogenic culture

Demonstration of a permeable barrier technology for the in-situ bioremediation of pentachlorophenol contaminated groundwater

Reductive, dechlorination of sediment-sorbed polychlorinated biphenyls by vitamin B₁₂(subscript s)

A kinetic approach for the determination of sorption rate constants using a column-type reactor

Down-borehole permeable barrier reactor : verification of complete mineralization of pentachlorophenol in a sequential anaerobic-aerobic process

The development of a gas-permeable-membrane-supported (GPMS) biofilm reactor for the combined anaerobic/aerobic treatment of polychlorinated biphenyls

Measurement of the rates of reductive dechlorination of chlorinated phenols

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