Filamentous bulking is well ...
Published by Ing.Tiziano Zampollo, Employee at Water Engineers & Consultants - WEnCo
Filamentous bulking is well known phenomenon and several techniques to address it are available under "bulking" "anti bulking" "filamentous bulking" keywords on the Internet.
Immediate "symptomatic" solution could be as simple as step aeration, mechanical foam scraping, increased disposal from SS and RAS chlorination
Root solution should come from feed analysis (toxic substances inhibiting correct floral inoculum and development), micronutrients misbalance (lack /excess of some basics) or simply poor ETP design (very low F/M, MLSS and MLVSS...) with respect to real feed.
HTH
Immediate "symptomatic" solution could be as simple as step aeration, mechanical foam scraping, increased disposal from SS and RAS chlorination
Root solution should come from feed analysis (toxic substances inhibiting correct floral inoculum and development), micronutrients misbalance (lack /excess of some basics) or simply poor ETP design (very low F/M, MLSS and MLVSS...) with respect to real feed.
HTH