Welcome back to TPO magazine's Exam Study Guide Series, which offers a pair of water/wastewater study questions with in-depth explanations of the answers. Last time, we covered a set of wastewater and drinking water treatment questions on the topics of Nutrient Deficient Influent and Softener Treatment Calculations. This time you can test your knowledge about wastewater treatment terminology and water system mandates.
Wastewater Treatment Sample Question
What is the term for activated sludge that is collected in the secondary clarifier and then sent to the aeration basin?
A. WAS
B. BOD
C. Effluent
D. RAS
Water Treatment Sample Question
What requires community water systems to assess the risks and resilience of specified assets for their utility operation?
A. America’s Water Infrastructure Act
B. Consumer Confidence Report Rule
C. Surface Water Treatment Rule
D. Public Notification Rule
To see answers for both of the above questions, click this link.
About the authors: 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. Lallish was also named the 2017 Illinois Operator of the Year and 2018 president of the Illinois Association of Water Pollution Control Operators.
Drew Hoelscher is the program director of drinking water operations at the Environmental Resources Training Center in Edwardsville, Illinois.
