28
Feb
Grades I&II Review Questions 8

Velocity is an important consideration in wastewater collection and treatment systems. What is the desired velocity of flow in gravity sewers and grit channels and why? At municipal wastewater treatment plants, primary clarifiers remove what percentage of settleable solids, BOD, and total suspended solids? How is percent removal of a pollutant across a unit process […]

Posted in: Exam Review,
28
Feb
Grades I&II Review Questions 7

Hydraulic loading in a treatment pond is always given in what units? Organic loading to a treatment pond is always given in what units? Is ft²/s units of flow? There are approximately how many Mgal in a pond 1 ac in area operated at a depth of 3 ft? Why does the solution bridge “work?”

Posted in: Exam Review,
28
Feb
Grades I&II Review Questions 6

What does “VSR” stand for? If the VSR in an anaerobic digester is found equal to 56%, how does WWTT recommend it be expressed for gas problems? What makes the relationship between two or more organisms symbiotic? The presence of what gas causes the pH in a wastewater treatment pond to go up and down? […]

Posted in: Exam Review,
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