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 purpose of screens, and different forms of iron. This time, you can test your knowledge about what influences sludge quality and how manganese greensand filters work.
Wastewater Treatment Sample Question
What process control measure has the most influence on sludge quality and determines the sludge age in an activated sludge process?
A. RAS (return activated sludge)
B. WAS (waste activated sludge)
C. SVI (sludge volume index)
D. F/M (food to mass ratio)
Answer: The answer is
Exam Study Guide: Sludge Quality; and Manganese Greensand Filters
Maintaining your education is important, especially in a career that demands licensing exams. Prove you’re an expert operator by answering these questions and others from our Exam Study Guide Series.
Nov 01, 2018 | by Rick Lallish and Drew Hoelscher |
