Answered by Tamie (46010 pts) 2 years Ago
Reed bed drain pump appears to be pumping filamentous bacteria straight to areation basin.
Oxidation ditch, .450 MGD design rate, .220 MGD flow. I have dosed the RAS with sodium hypochlorite and the filamentous immediately returns. Eventually there is nothing but filamentous left in activated sludge. After examining the reed bed drain effluent that flows to oxidation ditch, there isn't...