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    Detachment of Solids and Nitrifiers in Integrated, Fixed‐Film Activated Sludge Systems

    New search for: Maas, Carol L. A.
    New search for: Parker, Wayne J.
    New search for: Legge, Raymond L.

    Despite the importance of detachment to biofilm processes, detachment phenomena are not well understood. In this study, researchers investigated biofilm detachment from free‐floating biofilm carriers that were established in an integrated, fixed‐film activated sludge (IFAS) installation in Mississauga, Ontario. A method for assessing detachment from biofilm carrier systems was devised, evaluated, and refined during this study. In the absence of substrate, superficial air velocity significantly affected the 24‐hour detachment rates of total suspended solids from the carriers. Short‐term growth conditions did not appear to significantly affect the rate of detachment of solids and nitrifiers. The measured solids‐detachment rates were found to be described by a second order function of biofilm attached growth total solids with a detachment coefficient of 0.006 ± 0.0008 (g/m · d) −1.

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    Detachment of Solids and Nitrifiers in Integrated, Fixed‐Film Activated Sludge Systems

    New search for: Maas, Carol L. A.
    New search for: Parker, Wayne J.
    New search for: Legge, Raymond L.

    Despite the importance of detachment to biofilm processes, detachment phenomena are not well understood. In this study, researchers investigated biofilm detachment from free‐floating biofilm carriers that were established in an integrated, fixed‐film activated sludge (IFAS) installation in Mississauga, Ontario. A method for assessing detachment from biofilm carrier systems was devised, evaluated, and refined during this study. In the absence of substrate, superficial air velocity significantly affected the 24‐hour detachment rates of total suspended solids from the carriers. Short‐term growth conditions did not appear to significantly affect the rate of detachment of solids and nitrifiers. The measured solids‐detachment rates were found to be described by a second order function of biofilm attached growth total solids with a detachment coefficient of 0.006 ± 0.0008 (g/m · d) −1.

    Access

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    Check availability in my library
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    Detachment of Solids and Nitrifiers in Integrated, Fixed‐Film Activated Sludge Systems

    New search for: Maas, Carol L. A.
    New search for: Parker, Wayne J.
    New search for: Legge, Raymond L.

    Despite the importance of detachment to biofilm processes, detachment phenomena are not well understood. In this study, researchers investigated biofilm detachment from free‐floating biofilm carriers that were established in an integrated, fixed‐film activated sludge (IFAS) installation in Mississauga, Ontario. A method for assessing detachment from biofilm carrier systems was devised, evaluated, and refined during this study. In the absence of substrate, superficial air velocity significantly affected the 24‐hour detachment rates of total suspended solids from the carriers. Short‐term growth conditions did not appear to significantly affect the rate of detachment of solids and nitrifiers. The measured solids‐detachment rates were found to be described by a second order function of biofilm attached growth total solids with a detachment coefficient of 0.006 ± 0.0008 (g/m · d) −1.

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    Title:

    Detachment of Solids and Nitrifiers in Integrated, Fixed‐Film Activated Sludge Systems

    Contributors:

    Maas, Carol L. A. (author) / Parker, Wayne J. (author) / Legge, Raymond L. (author)

    Published in:

    Water Environment Research ; 80 ; 2202-2208

    Publication date:

    2008-12-01

    Size:

    7 pages

    ISSN:

    1554-7531 , 1061-4303

    DOI:

    https://doi.org/10.2175/106143008X304758

    Type of media:

    Article (Journal)

    Type of material:

    Electronic Resource

    Language:

    English

    Keywords:

    IFAS , nitrification , Biofilm carrier , detachment

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