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  • 1
    Electronic Resource
    Electronic Resource
    Physicochemical Aspects of Activated Sludge in Relation to Stable Foam Formation (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 6 (1992), S. 0 
    Details
    ISSN: 1747-6593
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: The presence of stable foams can seriously impair the ability of an activated sludge to produce a high-quality effluent. This paper examines how the physicochemical characteristics of the solids are related to foam formation and describes how the foaming potential of full-scale plants can be assessed. It also confirms that Microthrix parvicella can exhibit a variable morphology and shows that these variations are related to the physicochemical properties that characterize foam-forming solids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1747-6593.1992.tb00758.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Operational Aspects of Three ‘Selectors’in Relation to Aeration Tank Ecology and Stable Foam Formation (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 7 (1993), S. 0 
    Details
    ISSN: 1747-6593
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: The use of ‘selectors’to control the filamentous bacteria which promote bulking in activated sludge is a well-established concept. However, their use as a control measure for stable foams is still to be optimized. This paper presents the results of a preliminary investigation into the use of selectors at three sewage-treatment works where stable foams occurred regularly. Chemical and biological data are reported together with the redox potentials in the selector zones. Taken overall, the results suggest that selectors cannot be designed or built on an ad hoc basis if the foam-producing filaments are to be controlled.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1747-6593.1993.tb00849.x
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    Paper (German National Licenses)
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