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Filtering by: Subject Sewage sludge Remove constraint Subject: Sewage sludge Decade 1960-1969 Remove constraint Decade: 1960-1969

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  • 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

  • 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