Wastewater Guides d'étude, Notes de cours & Résumés
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Final Complete study guide for wastewater practice exam 2024/2025
- Examen • 3 pages • 2024
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Final Complete study guide for wastewater practice exam 2024/2025 
Odors occur when treatment becomes 
Anaerobic 
 
 
What should an operator do before entering a manhole 
Test for all hazardous gases and oxygen levels and ventilate the manhole before entering 
 
 
What treatment devices is commonly used to separate and remove large solids from raw wastewater 
a mechanically raked bar screen 
 
 
What diseases are caused by pathogenic organisms that may be present in raw wastewater? 
Hepatitis, ...
![Waste Water Operator Level 1 Exam Prep 2024/2025](/docpics/5421061/66502963cc4ed_5421061_121_171.jpeg)
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Waste Water Operator Level 1 Exam Prep 2024/2025
- Examen • 8 pages • 2024
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Waste Water Operator Level 1 Exam Prep 2024/2025 
In the activated sludge process, some of the activated sludge must be wasted to... 
 
A. Prevent excessive solid buildup 
B. Prevent clogging of the sludge return line 
C. Prevent overloading of sludge return pumps 
D. Increase digester gas production 
A. Prevent excessive solid buildup 
 
 
The best operating strategy for feeding primary sludge to an anaerobic digester is to feed... 
 
A. Several time a day 
B. Large quantities once or twice a d...
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Wastewater Treatment Operator Certification Test 2 final study guide 2024/2025
- Examen • 14 pages • 2024
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Wastewater Treatment Operator Certification Test 2 final study guide 2024/2025 
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% 
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 aera...
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