Index Catalog // ScholarsArchive@OSU

High-shear and pressure activated sludge treatment : solid-liquid separation

Creator:: Coddington, Charles William
Abstract:: Since the development of the activated sludge process in 1913 many attempts have been made to improve it. One approach has been to increase the oxygen available to the bio-mass. This study combined the use of elevated pressure and high-shear mixing to increase the oxygen transfer. The conventional method of...
Resource Type:: Masters Thesis
Full Text:: activated sludge process for sewage treatment was unchanged for almost 30 years after its development in

Heat utilization in a sewage disposal plant

Creator:: Peterson, Roy Stanley
Resource Type:: Masters Thesis
Full Text:: Gallons sludge per million Perceìtage reioval Bacteria BUD 02 suspended solids gal. sewage consumed

The effect of elevated pressure on the activated sludge process

Creator:: Godsil, Patrick James
Abstract:: A study of the effect of elevated pressure on the activated sludge waste treatment process is presented. The method of study involved a comparison of two laboratory, batch type, activated sludge units. One unit was operated at atmospheric pressure as a base control and the other operated at elevated pressures...
Resource Type:: Masters Thesis
Full Text:: - tion of settled sewage and seed material from an activated- sludge treatment plant and was acclimated

The effect of elevated pressure and high shear on oxygen uptake rates in activated sludge

Creator:: Streebin, Leale E.
Abstract:: The purification capacity of an activated sludge process is highly dependent of the rate of oxygen transfer from the air to the microorganisms. This rate can be increased in an air diffusion system by subjecting the culture to high shear and high pressure. A study of the effects of high...
Resource Type:: Masters Thesis
Full Text:: . Pasveer, A. Re search on activated sludge. III. Distribution of oxygen in activated sludge floc. Sewage

Determination of equilibrium partial pressure of ammonia gas above anaerobically digested sewage sludge

Creator:: English, Charles Joseph
Abstract:: A laboratory study of anaerobically digested sewage sludge was performed to measure equilibrium constants for ammonia in the sludge. Measured constants describing the solution and dissociation of ammonia in sludge were compared to theoretical constants obtained from thermodynamic data. No significant difference was found between these two sets of constants....
Resource Type:: Masters Thesis
Full Text:: Gas Above Anaerobically Digested Sewage Sludge AN ABSTRACT OF THE THESIS OF MASTER OF CHARLES

Winter wheat response to nitrogen, phosphorus, sulfur, and zinc supplied by municipal biosolids

Creator:: Shearin, Todd E.
Resource Type:: Masters Thesis
Full Text:: application of biosolids (formerly called sewage sludge) has been a desirable recycling alternative. Due to

An investigation of radioactively contaminated wastewater reclamation plant biosolids

Creator:: Brannan, C. Thomas
Abstract:: Within the last 15 years, wastewater treatment plants have increasingly begun to find radioactive isotopes incorporated in biosolids. Regulations concerning the disposal of radioactive material via sanitary sewer systems were in place since the early 1960's and recently were further restricted. However, the updated regulations would not have prevented certain...
Resource Type:: Masters Thesis
Full Text:: sludge incineration ash at the sewage treatment plant. In 1984, tests showed 241Am levels up to 750 pCi

Effect of Landfill Leachate Pretreatment and SBR Operational Parameters on Nitrification Efficiency and Activated Sludge Microbial Populations

Creator:: Miller, Kierstin M.
Abstract:: A year-long, bench-scale treatability study was performed to assess whether an activated sludge sequencing batch reactor could be used to treat an influent stream of 50/50 (v/v) municipal wastewater and landfill leachate to discharge standards established by the Oregon Department of Environmental Quality. One primary obstacle that was exposed during...
Resource Type:: Masters Thesis

Molecular and Kinetic Characterization of Anammox Bacteria Enrichments and Determination of the Suitability of Anammox for Landfill Leachate Treatment

Creator:: Sultana, Sharmin
Abstract:: Anaerobic ammonium oxidation (anammox) has recently appeared as a promising approach for removing nitrogen from landfill leachates because it requires less oxygen and no organic carbon compared to traditional nitrification-denitrification system, and it produces low sludge volumes, thereby reducing operating and biological sludge disposal costs by over 60%. Anammox bacteria...
Resource Type:: Masters Thesis
Full Text:: organic carbon compared to traditional nitrification-denitrification system, and it produces low sludge

ScholarsArchive@OSU

High-shear and pressure activated sludge treatment : solid-liquid separation

Heat utilization in a sewage disposal plant

The effect of elevated pressure on the activated sludge process

The effect of elevated pressure and high shear on oxygen uptake rates in activated sludge

Determination of equilibrium partial pressure of ammonia gas above anaerobically digested sewage sludge

Winter wheat response to nitrogen, phosphorus, sulfur, and zinc supplied by municipal biosolids

An investigation of radioactively contaminated wastewater reclamation plant biosolids

Effect of Landfill Leachate Pretreatment and SBR Operational Parameters on Nitrification Efficiency and Activated Sludge Microbial Populations

Molecular and Kinetic Characterization of Anammox Bacteria Enrichments and Determination of the Suitability of Anammox for Landfill Leachate Treatment

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