Wastewater B License Fl Study Guide.

©SIRJOEL EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.




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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, ©SIRJOEL EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.
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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