Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 54 for “"contactor"”.
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A numerical, parametric study of plasma contactor performance
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1989.
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Pulseback of panel bed contactor for carbon and water
A method for removing chemical contaminants, such as phenol, from a stream of waste water has been proposed. The method uses a device for contacting water with activated carbon, called a "panel bed". In this device, water flows across a bed of activated carbon retained within a set of parallel …
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Liquid-liquid extraction in a pilot scale rotating disc contactor
… in a 450 mm diameter, 4.30 m high Rotating Disc Contactor (R.D.C.) has been undertaken. The literature relating to this type of extractor and the relevant phenomena, such as droplet break-up and coalescence, drop mass transfer and axial mixing has been revjewed. Experiments were performed using …
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Continuous solvent extraction of a Venezuelan reduced crude on a rotating disc contactor
Includes bibliographical references.
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Start-up and shock loading characteristics of a rotating biological contactor package plant
A full-scale rotating biological contactor treatment system primarily used for treatment of wastes from single-family dwellings was studied at the Blacksburg-Virginia Tech wastewater treatment plant. Municipal primary clarifier effluent was pumped into the 600 gpd rated RBC unit at the rate of 480 …
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A STUDY OF THE MICROORGANISMS INHABITING ROTATING BIOLOGICAL CONTACTOR BIOFILMS DURING VARIOUS OPERATING CONDITIONS
<p>The microbial ecology of rotating biological contactors (RBC) is a combination of complex interrelationships among bacteria, protozoa, and metazoa and their perceived environment. Since very little information is available on the microorganisms inhabiting the biofilms, the major objective of …
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An examination of plasma contactor performance through a comparison of theory, numerical results, and data
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1989.
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A Pilot-scale Evaluation of Soluble Manganese Removal Using Pyrolucite Media in a High-Rate Adsorptive Contactor
… greensand effect in a post-filtration sorptive contactor for application at water treatment facilities. The research reported by Zuravnsky (2007) focused on the use of oxide-coated media in a post-filtration contactor and served as a starting point for the research reported in this thesis. As a …
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On the Shape of the Free Surface of a Rubber-Like Material in Proximity to a Rigid Contactor
… or other types of interaction from a proximate contactor. We consider an incompressible rubber-like film of infinite depth, account for the influence of the contactor and both residual surface stress and curvature on the surface free-energy density, and impose force balance both in the bulk and …
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A novel microchemical system for rapid liquid-liquid chemistry
… been a microchemical system with a multi-inlet contactor for liquid-liquid processes. The systems are fabricated using, primarily, silicon and glass in which feature sizes range from approximately 10 to 500 [mu]m. The multi-inlet contactor consists of 10 alternating inlets for two components. …
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Development of Soluble Manganese Sorptive Contactors for Enhancing Potable Water Treatment Practices
… greensand effect in a post-filtration sorptive contactor for application at water treatment facilities. The process of adsorption and oxidation of Mn onto oxide-coated media grains in the contactor will be used for the removal of soluble Mn. However, small media grains, such as sand or …
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Mathematical Modeling for Nitrogen Removal via a Nitritation: Anaerobic Ammonium Oxidation-Coupled Biofilm in a Hollow Fiber Membrane Bioreactor and a Rotating Biological Contactor
… biofilm in a co-diffusion rotating biological contactor (RBC) were developed and implemented using AQUASIM. Four different start-up scenarios on the nitritation: anammox-coupled biofilm in an HFMBR were investigated. The supply of oxygen was simulated with the flow through the lumen of the …
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Denitrification in Membrane Bioreactors
… however, the membrane module was used as a contactor that separated the treated water and the bioreactor system, which allowed the transfer of solutes through the membrane porous structure and supported the growth of a biofilm on the membrane surface. The nitrate removal rate of the DF …
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A machine for tribological experimentation on indexing continuous media with specific application to semiconductor testing
… designed to accurately reproduce semiconductor contactor operating environments while measuring contact resistance in-situ, thereby effecting the study of operating temperature, test current, cleaning method, and cleaning interval on contactor life. To manipulate the continuous media while …
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No uniformidades y estabilidad lineal de contactores esféricos en plasmas no magnetizados
… y delgada, que se forman en torno a un contactor de plasma. Se considera el caso específico de un contactor anódico con simetría esférica en un plasma no magnetizado. Se realiza primero una revisión del modelo estacionario que incluye algunas aportaciones novedosas sobre la influencia de …
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Fundamental study of hydrophobic microporous membrane contactors for the recovery of insoluble oil from oil-water mixtures
… was to advance the understanding of a membrane contactor process for the recovery of insoluble oil from water. The hydrophobic hollow fiber membrane had been successfully tested in our laboratories for oil recovery from algae slurries. However, a thorough study to understand the fundamental …
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Contact-type mechanical interfaces for high speed digital interconnects
… in the field of semiconductor test. These contactors will be incorporated into a socket or an interconnect used in testing devices or printed circuit boards. The heights of the solder ball leads on BGA packages have a high degree of co-planarity. As BGA pitches become tighter, the …
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