- Extent of Gordona Foaming Problem
- Cambi Process
- Methods & Materials
- Cost Comparison
- Conclusions, Future Concerns
Extent of Gordona Foaming Problem
- Gordona (aka Nocardia) is the predominant organism in 66% of 114 USA treatment plants (Pitt and Jenkins,1990).
- San Francisco experiences operating problems due to Gordona scum.
Foaming control methods
- Operation at low MCRTs
- Selective wasting of scum
- Addition of polymer