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 Solids Retention Time; and Oxidizing Agents. This time, you can test your knowledge about sludge blanket depth, and aluminum sulfate as a coagulant.
Wastewater Treatment Sample Question:
It is generally accepted that the sludge blanket depth in secondary clarifiers should not exceed 2 feet or 0.6 meters. By allowing a deeper sludge blanket, what undesirable outcome may occur?
A. Nitrification may occur in the secondary clarifierB. Deeper blankets inhibit settleability
Exam Study Guide: Sludge Blanket Depth; and Aluminum Sulfate as a Coagulant
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.
Aug 23, 2018
| by Rick Lallish and Drew Hoelscher |
