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Wastewater B License Fl Study Guide.
3 Amigos
- Answers✔F/M, SVI, Current WAS rate
3 M's
- Answers✔MLSS, MLVSS, MCRT
High Sludge Age =_________ MCRT - Answers✔High MCRT
High Sludge Age=_______ MLSS - Answers✔High MLSS
Older Sludge F/M ratio - Answers✔=< 0.1 lbs/day CBOD : 1lb MLVSS
Young Sludge Bacteria - Answers✔Amoebas, Flagellates, Swimming ciliates
Old Sludge Bacteria - Answers✔Nocardioforms, Rotifers, Nematodes
To reduce F/M Ratio _______ the waste rate - Answers✔reduce the waste rate
6 Reasons for Filament Bacteria to flourish: - Answers✔Low F/M RATIO, High MCRT
Low DO
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Septic/High Organic Acids
Nutrient imbalance in influent
Low pH
FOG
Successful Biological Nutrient Removal (BNR) need specific environmental conditions -
Answers✔Air and Water Temperature
pH
Alkalinity
Nutrients
MCRT/SRT
Proper respiratory conditions
Water Temp for BNR - Answers✔Ideal is 77° - 95° F
Below 59°F inhibit bacteria
Above 104°F kills bacteria
pH for BNR - Answers✔Ideal is 7.0 to 8.0
Below 6.5 inhibit bacteria
Below 6.0 kills bacteria
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