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Titre :
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Transient behaviour and time aspects of intermittently and continuously fed bacteria cultures with regard to filamentous bulking of activated sludge
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Auteurs :
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E. Van Den Eynde ;
L. Vriens ;
UNIVERSITY OF LEUVEN BEL LABORATORY OF INDUSTRIAL MICROBIOLOGY AND BIOCHEMISTRY ;
M. Wynants ;
H. Verachtert
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Type de document :
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article/chapitre/communication
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Année de publication :
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1984
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Format :
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p. 44-52
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Langues :
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= Anglais
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Catégories :
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MICROBIOLOGIE
TRAITEMENT DE L'EAU RESIDUAIRE
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Mots-clés :
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CULTURE BACTERIENNE
;
BOUES ACTIVEES
;
POLYMERE
;
BACTERIE FILAMENTEUSE
;
FOISONNEMENT DES BOUES
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Résumé :
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Pure culture transient experiments with Arthrobacter globiformis and Sphaerotilus natans revealed that the floc-forming species A. globiformis can adapt better to intermittent feeding (I-feeding) than the filamentous species S. natans. However, to be effective in the control of bulking, the frequency of I-feeding should allow for a sufficiently long endogenous phase. In addition the available fraction of the COD is important in the optimization of I-feeding as a control strategy for filamentous bulking. In this article we report on the transient behaviour of pure and mixed cultures after a pulse dose of substrate ; special attention is given to the fate of the substrates taken up according to the overcapacity.
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Source :
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Applied microbiology and biotechnology, vol. 19
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