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 Mean Cell Residence Time and Water Separation Processes. This time you can test your knowledge about aerobic digestion and water filtration processes.
Wastewater Treatment Sample Question
What is the main problem found when aerobically digesting primary sludge?
A. Increased amounts of endogenous respiration B. To maintain DO levels, more air is requiredC. Loss of microorganism growth required for endogenous respirationD. Primary sludge should never be fed to an aerobic digester
Water Treatment Sample
