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Showing 1 to 5 of 5 for “"bulking control"”.
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Full scale demonstration of filamentous bulking control at a biological nutrient removal activated sludge plant
Includes bibliographical references.
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The effect of nitrite and nitrate concentrations on low F/M filament bulking in nitrogen removal activated sludge systems
Filamentous bulking and its associated poor sludge settleability is a considerable problem in South African activated sludge plants, as indicated by the two surveys undertaken on these plants in 1985 and 1988 (Blackbeard et al., 1986, 1988). Amelioration of this problem would enable a greater daily …
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The effect of fully anoxic conditions and frequency of exposure to anoxic and aerobic conditions on the growth of low F/M filaments in nitrogen remova
Filamentous bulking, caused predominantly by low F/M filaments (Blackbeard et al, 1986, 1988), results in considerable settling problems in full scale nitrogen (N) and nutrient (N & P) removal activated sludge plants in South Africa. The development of specific methods for control of low F/M …
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The effect of the type, size, position and recycle ratio of the anoxic zone on low F/M filament bulking in nitrogen removal activated sludge systems
Filamentous bulking, which causes deterioration in sludge settleability has been shown, in two nation-wide surveys to be a problem of considerable proportions. Poor sludge settleability in the secondary clarifier limits the daily flow and load that can be treated in activated sludge wastewater …
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Factors affecting the growth of Nostocoida limicola II and other filamentous microorganisms in activated sludge systems
… of various filamentous microorganisms in the bulking activated sludge at the Hoechst Celanese wastewater treatment plant. First, futile attempts were made to isolate the filamentous bacterium, <i>Nostocoida limicola II</i>, from activated sludge for purposes of its characterization. Chemostat …