Title: The Operation of a Selector for the Control of Foam-Foaming Bacteria in Activated Sludge
Abstract: Details are presented concerning the operation of a two-stage selector used in conjunction with an activated sludge process. The first-stage of the selector was not aerated, the second-stage had the facility for variable aeration. The prime objective of using the selector was to effect a sufficient reduction in the numbers of Microthrix parvicella to minimise the potential for the formation of stable foam in the aeration tank. In an extended trial (> 1 year) it was found that the most effective regime was when the second-stage was subjected to an aeration period of between 9 and 12 hours. It was noted that none of the changes in the aeration times had any effect on the population of the secondary filamentous species, Nostocoida limicola.
Publication Year: 1997
Publication Date: 1997-02-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 3
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