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Floc Forming and Filamentous Bacteria in an Aerated Stabilization Basin
Concern or Curiosity? Part 1 - Haliscomenobacter hydrossis Mike Foster, Principal Consultant - Environmental Business Specialists, LLC Paul Klopping, Principal Consultant - Callan & Brooks Filamentous bulking has long been the bane of activated sludge operations....
Filamentous Bacteria in Aerated Stabilization Basins: Part 1
Filamentous bulking has long been the bane of activated sludge operations. Biomass or sludge bulking is generally defined as mixed liquor with a Settled Volume Index (SVI) of >150 ml/g. However, sludge bulking does not definitively translate to a sludge bulking...
Filamentous Bacteria Identification
Useful Tool or Red Herring Mike Foster, Principal Consultant - EBS Paul Klopping, Principal Consultant - Callan & Brooks Filamentous bulking is a major problem for operators of municipal and industrial activated sludge systems. For the past thirty years, renowned...
Primary Clarifier Operation
Primary clarification is the physical treatment process of removing solids before biological treatment. It is the most cost effective way to remove these solids after basic screening. Process water enters the clarifier tank and floatable solids (scum) are removed from...
Pros and Cons of Aerated Stabilization Basins and Activated Sludge Systems
In North America, there are predominantly two systems used to biologically treat industrial wastewater: the aerated stabilization basin (ASB or aerated lagoon) and the activated sludge system. These two systems have far more similarities than differences. Both pro...
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