Study Guide Answer Key

Here are the answers to the Aug. 17, 2022 edition of TPO's Exam Study Guide: What type of diffuser gives the best oxygen transfer but are less efficient at mixing? The answer to the question is B, fine. Diffusers to provide aeration are very common throughout various wastewater treatment operations. Fine diffusers typically will produce 1-3 millimeter bubbles and have much greater oxygen transfer but are less efficient at mixing compared to coarse diffuser operations which produce larger 5-12 millimeter bubbles. When choosing the best diffuser for the treatment operation, the operator must determine what attribute is most important to his or