Preliminary & Primary Treatment
10 questions · ~12 minutes · instant grading with full explanations
- 01
Grit removed at the headworks consists mainly of:
- 02
What is the principal purpose of bar screening at the headworks?
- 03
The typical target velocity across a grit removal channel is approximately:
- 04
Associated with primary clarifier scum, FOG stands for:
- 05
Primary clarifiers most effectively remove which pair of pollutants?
- 06
H₂S is the formula for which gas, and at low concentrations it smells like:
- 07
Corrosion of the crown of a sewer (crown corrosion) is caused when H₂S is converted to:
- 08
Primary sludge is most commonly pumped to which downstream unit?
- 09
Wet scrubbers for headworks odor control most commonly use which reagent?
- 10
Activated carbon odor control works by which mechanism?
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