Hydrolysis of wastewater colloidal organic matter by extracellular enzymesextracted from activated sludge flocs

Authors
Guellil, A Boualam, M Quiquampoix, H Ginestet, P Audic, JM Block, JC
Citation
A. Guellil et al., Hydrolysis of wastewater colloidal organic matter by extracellular enzymesextracted from activated sludge flocs, WATER SCI T, 43(6), 2001, pp. 33-40
Citations number
29
Categorie Soggetti
Environment/Ecology
Journal title
WATER SCIENCE AND TECHNOLOGY
ISSN journal
02731223 → ACNP
Volume
43
Issue
6
Year of publication
2001
Pages
33 - 40
Database
ISI
SICI code
0273-1223(2001)43:6<33:HOWCOM>2.0.ZU;2-I
Abstract
Enzymatic activities associated with the exopolymeric substances (EPSs) ext racted from activated sludges were tested for their ability to hydrolyse th e organic colloidal fraction of wastewater. Bacteria extracted with EPS and concentrated by wastewater microfiltration were inhibited with NaN3 or KCN . The protein hydrolysis mainly resulted from the enzymatic activity of EPS , whereas the glycolytic activity was mainly present in the organic colloid al fraction of the wastewater.