Study Guide Answer Key

Here are the answers to the March 3, 2022 edition of TPO's Exam Study Guide: What test is done on influent and effluent samples to determine volume of solids removed in clarifiers or ponds? What apparatus is used to run this analysis? The answer to the question is C, settleable solids, Imhoff cones. The settleable solids test is done using the Imhoff cones. It measures the volume of settleable solids in one liter of sample that settle to the bottom in a one-hour period. The test may be done on influent, effluent, clarifier or settling tanks. This test should not be confused with