Wastewater III Study Exam question with complete solution 2023 graded A+

Wastewater III Study Exam question with complete solution 2023 graded A+ First action for a polymer spill - correct answer Apply an absorbent to the spill such as sand or kitty litter and then sweep up the materials. Total discharge head includes - correct answer Discharge pressure head + static discharge head + Velocity head (outlet) + Friction Head (discharge line) Where is the best location to collect a sample? - correct answer A location that represents the entire waste stream or basin. What are the preservation and hold times for BOD samples? - correct answer 48 hours at < or = to 6 degrees C. Define BOD. - correct answer The rate at which organisms use the oxygen in water or waste water while stabilizing decomposeable organic matter under aerobic conditions. What is the purpose of a dessicator? - correct answer To allow residual samples to control moisture prior to weighing. What will happen if the flow to the grit chamber is too low? - correct answer Too much organic material will be deposited. How does an operator control the suspended solids in an activated sludge basin? - correct answer By wasting and returning activated sludge. Chlorine combines with ammonia to form what - correct answer Chloramines