Titre :
|
Effect of extracellular polymeric substances (EPS) on the attachment of activated sludge
|
Auteurs :
|
Y. Park ;
D. Kim ;
T. Park ;
S. Song
|
Type de document :
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article/chapitre/communication
|
Année de publication :
|
2000
|
Format :
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p. 1-3
|
Langues:
|
= Anglais
|
Catégories :
|
TRAITEMENT DE L'EAU RESIDUAIRE
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Mots-clés:
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BOUES ACTIVEES
;
MICROORGANISME
;
POLYMERE
|
Résumé :
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Extracellular polymeric substances (EPS) were removed by mechanical (high-speed centrifugation) and chemical (EDTA treatment) methods. The number of attached microorganisms decreased from 33.0 × 10 CFU cm to 17.5 × 10 CFU cm and 12.5 × 10 CFU cm, respectively. When the activated sludge was treated with polysaccharide-oxidizing agent (sodium meta periodate) and protease (pronase E), the number of attached microorganisms decreased to 41% and 43.5%, respectively. Transmission electron microphotographs showed that polysaccharide-oxidizing agent and protease treatment caused the removal of filamentous extracellular structures.
|
Source :
|
Bioprocess engineering, vol.22, n°1
|