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 Settleometer Tests and Public Notification Requirements. This time you can test your knowledge about secondary clarifier denitrification and new groundwater sources.
Wastewater Treatment Sample QuestionDenitrification in the secondary clarifier is undesirable. Which of the following is the best method of minimizing denitrification of secondary clarifier sludge?
A. Proper wasting methodsB. Proper RAS controlsC. Maintaining elevated SRT levelsD. Maintaining higher HRT levels
Water Treatment Sample Question
New groundwater sources are:
A. Required to conduct triggered source water
