WEF Discussion Forums
Biological Nutrient Removal
Biological Phosphorus Removal
I wanted to know if anyone has first hand knowledge of Biological Phosphorus Removal. It seems to be an interesting concept, and I would appreciate any information. Thank you in advance.
Yes we use Bio P removal and it works good. For 2009 the average was 8.39 MGD flow, 3.71 mg/L-P influent and 0.34 mg/L-P effluent. The plant design is 8.0 MGD. We have 2 anaerobic tanks and 5 aerobic tanks, 5 clarifiers, nitrification towers for ammonia, and cloth disk filters. At design flow the hydrolic detention time, including RAS, is 4.2 hours. We need no additional organic to maintain anaerobic conditions in anaerobic tanks. The downside is that phosphorous is released during anaerobic digestion at another facility.