Lessons Learned

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2. Careful SRTControl:• 20-30 day SRT Strategyfor Ammonia RemovalToo Old• Need to be in 10-15 day(Aerobic SRT) Range– Avoids P Release inAerobic Zone andClarifiers– Better Setting Sludge inClarifiers– Minimizes Competing(GAO) BacteriaBio-P OperatingLessons Learned
Bio-P Operating3. Good ClarifierPerformance• Lower SRT forBetter SettlingSludge• Adjust RAS to KeepLower SludgeBlankets (< 3 ft.)• Bio-P Sludge SettlesBetter!Lessons Learned
Page 3 and 4: PhosphorusRemoval Processes• Biol
Page 5 and 6: Standard ActivatedSludge Process
Page 7 and 8: Bio-P Removal
Page 9 and 10: Biological NutrientRemoval Process
Page 11 and 12: What It Takes• Good ClarifierPerf
Page 13: Bio-P OperatingLessons Learned1. In
Page 17 and 18: Bio-P OperatingLessons Learned5. St
Page 19 and 20: Bio-P OperatingLessons Learned7. Av
Page 21 and 22: Bio-P Operating• Higher D.O.• L
Page 23 and 24: Filtration Operating• Canopy Over
Page 25 and 26: Chemical AdditionLessons Learned•
Page 27 and 28: Odor Control and PRemoval• Calciu
Page 29 and 30: Summary• Low Effluent Phosphorus

Lessons Learned

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