![Does Your Facility Face problems with Filaments and Foam? This Plant Tested a Solution](https://cole-tpomag.imgix.net/https%3A%2F%2Fwww.tpomag.com%2Fuploads%2Fimages%2Fwestpoint2_ml_foam_at3-6effluent_channel_102219.jpg?crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=620&ixlib=php-1.1.0&q=75&w=1024&s=f6ad302d948ed196a46b8fed5a385d9f)
Foam in the mixed liquor channel at the effluent end of aeration basins, before the addition of cationic polymer to the RAS line.
The aeration basins at West Point Treatment Plant in Seattle experienced periodic foaming caused by nocardiaform filamentous bacteria.
Although the foaming problem did not significantly affect significantly secondary effluent quality, it made process control more difficult by...