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 Types of Bacteria, and Chemical Sequences. This time, you can test your knowledge about indicator organisms and iron contamination.
Wastewater Treatment Sample Question:
The presence of nematodes (round worms), water bears (tardigrades) and/or bristle worms is a typical indicator of what condition in an activated sludge treatment plant?
A. Young sludgeB. Mature sludgeC. Old sludgeD. Toxic condition
Answer: The answer to this question is C, old sludge. Understanding what indicator organisms represent, when
Exam Study Guide: Indicator Organisms; and Iron Contamination
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.
Sep 20, 2018
| by Rick Lallish and Drew Hoelscher |
