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 Types of Liquid Waste; and Colloidal Particles in Water. This time, you can test your knowledge about sludge blanket level, and chemical feed calculation.
Wastewater Treatment Sample Question
What is the maximum sludge blanket level in a secondary (activated sludge) clarifier?
A. 5%B. 10%C. 25%D. 50%
Answer: The answer to the question is C. Basic operation and knowledge of clarifier process controls are fundamentals that should be understood by most operators. In activated
Exam Study Guide: Sludge Blanket Level; and Chemical Feed Calculations
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.
Jun 13, 2019 | by Rick Lallish and Drew Hoelscher |












