Exam Study Guide: Activated Sludge General Knowledge

Exam Study Guide: Activated Sludge General Knowledge

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When faced with a licensing exam, don't struggle with test anxiety! Use the question below and others from our Exam Study Guide series to properly study and prepare for exam questions. Take a look at this sample wastewater treatment licensing question along with an explanation of the correct answer.

Sample question:

What condition is present when oxygen is absent and nitrate is used as an oxygen source?

A) Anoxic
B) Anaerobic
C) Aerobic
D) Endogenous

Answer: This condition is in contrast to aerobic (with oxygen) or anaerobic (no oxygen and nitrate) conditions. The answer is A, anoxic.

Source: WEF MOP11 20-57

About the author
Rick Lallish is the Water Pollution Control program director at the Environmental Resources Training Center of Southern Illinois University Edwardsville. He provides training for entry level operators in the wastewater field and operators throughout the state looking to further their education.



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