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Filtering by: Creator Dempster, L. J. Remove constraint Creator: Dempster, L. J. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering Degree Level Master's Remove constraint Degree Level: Master's

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  • 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:
    , chloroform, and carbon tetrachloride AN ABSTRACT OF THE THESIS OF Roger L. Ely for the degree of Master of

  • Disposal of sandy pipeline dredge spoils by end dumping

    Creator:
    Pyles, Marvin Russell
    Abstract:
    Channel maintenance operations in the rivers and harbors of the United States annually require the disposal of over 320 million cubic meters of dredge spoils. As the availability of suitable land sites diminishes, open water disposal presents an attractive yet controversial alternative method. For open water disposal to be acceptable,...
    Resource Type:
    Masters Thesis
    Full Text:
    : Redacted for privacy W. L. Schroeder Channel maintenance operations in the rivers and harbors of the

  • A method of PCB metabolite determination in anaerobic freshwater sediments using a upflow anaerobic biofiltration process (ANBIOF)

    Creator:
    Low, Edmond J.
    Abstract:
    The biodegradation of five polychlorinated biphenyls (PCBs) by Hudson River and Silver Lake sediments was studied using gas chromatography with electron capture detection (GC/ECD) and gas chromatography with mass spectrometry (GC/MS) analyses. Methanogenic sediments from the Hudson River and Silver Lake were used to inoculate four anaerobic filter reactors. The...
    Resource Type:
    Masters Thesis
    Full Text:
    Edmond J. Low for the degree of Master of Science in Civil Engineering presented on April 29, 1988

  • 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:
    selection for aerobic dichlorophenol degradation AN ABSTRACT OF THE THESIS OF Peter J. Kaslik for the

  • A manual for plate loading tests performed on rock

    Creator:
    Dodds, Donald J.
    Abstract:
    Plate loading tests in rock are deceptively simple tests to perform. Consequently, many varieties have been developed in the past 60 years. From each of the varieties various investigators have added their own developments and modifications, some good, and some not so good. The result has been a confusion of...
    Resource Type:
    Masters Thesis
    Full Text:
    to Dr. W, L. Schroeder, Dr. J. Richard Bell and Dr. Keith F. Olds for their time, labor and counsel

  • Engineering properties of Oregon and Washington coast range soils

    Creator:
    Alto, Jalmer V.
    Abstract:
    Landslides are frequent in the steep forested regions of the Oregon and Washington coastal mountain ranges. The need for forest products has resulted in increasing logging activity in these marginally stable areas. The occurrence of landslides has increased, which in turn has focused greater interest in slope stability management. Of...
    Resource Type:
    Masters Thesis
    Full Text:
    major professor, Dr. W. L. Schroeder for his guidance and constant availability through- out the

  • Consolidation characteristics of calcareous deep sea-floor sediments from the Panama Basin

    Creator:
    Kao, Yeoung Ting
    Abstract:
    Calcareous sediments containing a large percentage of foraminiferal microskeletal tests were taken from sites in the Panama Basin and subjected to an investigation to determine the consolidation characteristics of this type of soil. The consolidation-stress curves and the time rate of consolidation curves in particular were investigated in this study....
    Resource Type:
    Masters Thesis
    Full Text:
    gratefulness is owed to Dr. J. R. Bell who has been a constant inspiration. All the hours given for guidance

  • Modeling hydraulic dredge spoil fate

    Creator:
    Tseng, Ying-chuan
    Abstract:
    Hydraulic dredging is and most certainly will remain a primary means of maintaining and improving ship channels and for land reclamation in near-shore water. The study of which this thesis describes a part is intended to develop a method of predetermining the immediate disposition of sand spoils from hydraulic dredging...
    Resource Type:
    Masters Thesis
    Full Text:
    . L. Schroeder Hydraulic dredging is and most certainly will remain a primary means of maintaining

  • GOSEP: Georeferenced Oregon Soil Engineering Properties

    Creator:
    Dutille, Victoria L.
    Abstract:
    Geotechnical engineers design and analyze the interface between the natural and built environments, often based on uncertain and inherently variable data due to the nature of the building material, soil. Engineers must estimate the subsurface conditions at a site using historical, in-situ, and laboratory testing data. However, only discrete representative...
    Resource Type:
    Capstone Project

  • 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