Wastewater Class B Texas Study Guide Questions And Correct Answers

Common operating problems with a trickling filter include {Ans: Ponding, Filter files, Odors, Clogging of Nozzles, & Snails}In the activated sludge system, if the operator observes excessive air being used with no apparent change in organic or hydraulic loading, the operator would suspect {Ans: Leaks in the system piping, Plugged air diffusers & High organic loading}If the ____ loading on the plant is high, the operator would need to ____Dissolved Oxygen (DO) levels. {Ans: Organic/Increase}In the activated sludge process, daily observation of the aeration basin treatment processes are essential. The operator should pay close attention to {Ans: Surface turbulence, Foam, Odors, & Color}___________would have an adverse effect on the proper settling of solids in a clarifier. {Ans: A short circuiting flow pattern}In the past ____ was used to construct manholes. This product is prohibited for construction or grading today {Ans: brick and mortar}