• Libraries
    • Log in to:
    View Item 
    •   MSpace Home
    • University of Manitoba Researchers
    • University of Manitoba Scholarship (login required)
    • View Item
    •   MSpace Home
    • University of Manitoba Researchers
    • University of Manitoba Scholarship (login required)
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Thermophilic anaerobic acid digestion of biosolids: hydrolysis, acidification, and optimization of retention time of acid digestion

    View/Open
    Puchajda_Thermophilic_anaerobic.pdf (164.3Kb)
    Date
    2006-05-31
    Author
    Puchajda, B
    Oleszkiewicz, J
    Metadata
    Show full item record
    Abstract
    The objective of the study was the optimization of the retention time in a thermophilic acid digestion system. To achieve this optimization, acidification index defined as the ratio between acidification rate and hydrolysis-rate was used. First-order reaction model developed by Eastman and Ferguson (1981) was used to describe hydrolysis of particulate matter in sludge. The first-order hydrolysis rate constant was found to be 2.36 d(-1), and the initial concentration of degradable particulate COD was found to be 10.4 g/L. A model of acid digestion was proposed that included acidogenic biomass growth and decay. The total acidogenic population was estimated and kinetic parameters of acidogenic population were specific growth rate 6.78 d(-1), net specific growth rate 0.25 d(-1), decay coefficient 0.52 d(-1), and observed yield 0.05 mg biomass/mg COD consumed.,Based on the acidification index, the optimum retention time in a thermophilic acid digester was 3-3.5 d.
    URI
    http://hdl.handle.net/1993/3004
    DOI
    10.1139/S05-038
    Collections
    • University of Manitoba Scholarship (login required) [171]

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of MSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    Login

    Statistics

    View Usage Statistics

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV