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A platform for research: civil engineering, architecture and urbanism
Theoretical aspects of bulking in activated sludge
ABSTRACT: Percolation theory was applied in a theoretical analysis of bulking of activated sludge caused by filamentous microorganisms. Dimensionless filament concentration was defined as L = TEFLv · d2 (where TEFLv = total extended filament length per unit volume, d = length of an individual filament). For L less than a critical value L* , sludge settling is not affected. For L > L* sludge settling is impaired. The critical value L* was theoretically estimated at 0.90 and compared with experimental data reported in the literature. Settling and compression of sludge in a sludge volume index test was analyzed. Elasticity modulus of compressed sludge was related to solids concentration.
Theoretical aspects of bulking in activated sludge
ABSTRACT: Percolation theory was applied in a theoretical analysis of bulking of activated sludge caused by filamentous microorganisms. Dimensionless filament concentration was defined as L = TEFLv · d2 (where TEFLv = total extended filament length per unit volume, d = length of an individual filament). For L less than a critical value L* , sludge settling is not affected. For L > L* sludge settling is impaired. The critical value L* was theoretically estimated at 0.90 and compared with experimental data reported in the literature. Settling and compression of sludge in a sludge volume index test was analyzed. Elasticity modulus of compressed sludge was related to solids concentration.
Theoretical aspects of bulking in activated sludge
Hermanowicz, Slawomir W. (author)
Water Environment Research ; 65 ; 245-249
1993-05-01
5 pages
Article (Journal)
Electronic Resource
English
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