High sludge age mlss - Study guides, Class notes & Summaries
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Wastewater Treatment Operator Certification Test #2 (solved)
- Exam (elaborations) • 15 pages • 2022
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What is the typical BOD removal efficiency in a primary clarifier? 
 
A) 10 to 15% 
B) 40 to 60% 
C) 20 to 50% 
D) 95 to 99% - ANSWER C) 20 to 50% (v.1 pg 129) 
 
What does the "F" in F/M ratio represent? 
 
A) The microorganism population in the aeration tank 
B) The amount of filamentous bacteria in the activated sludge process 
C) The MLVSS in the aeration tank 
D) The food for the microorganisms flowing into the aeration tank, in lbs/day - ANSWER D) The food for the microorganisms flowing ...
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Wastewater B License FL Exam Questions and Answers 2024/2025( A+ GRADED 100% VERIFIED).
- Exam (elaborations) • 6 pages • 2024
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Wastewater B License FL Exam Questions and Answers 2024/2025( A+ GRADED 100% VERIFIED).
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Wastewater B License Fl Question and Answer 100% Correct
- Exam (elaborations) • 11 pages • 2024
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Wastewater B License Fl Question and 
Answer 100% Correct 
3 Amigos 
- F/M, SVI, Current WAS rate 
3 M's 
- MLSS, MLVSS, MCRT 
High Sludge Age =_________ MCRT - High MCRT 
High Sludge Age=_______ MLSS - High MLSS 
Older Sludge F/M ratio - =< 0.1 lbs/day CBOD : 1lb MLVSS 
Young Sludge Bacteria - Amoebas, Flagellates, Swimming ciliates 
Old Sludge Bacteria - Nocardioforms, Rotifers, Nematodes 
To reduce F/M Ratio _______ the waste rate - reduce the waste rate 
6 Reasons for Filament Bacteria t...
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