What device uses a series of corrugated plate packs at an inclined angle in a vessel to separate oil, water, and solids?
A. API separator
B. Parallel plate interceptor
C. Corrugated plate interceptors
D. Circular mechanical clarifier
A. Incorrect. The design of the API separator is based on specific gravity differences between the oil and the wastewater.
B. Incorrect. Parallel plate interceptors (PPIs) perform the same function as API separators, but with a parallel plate assembly.
C. Correct. Corrugated plate interceptors are like API separators and PPIs; however, they use a series of corrugated plate packs at an inclined angle in a vessel to separate oil, water, and solids.
D. Incorrect. Circular mechanical clarifiers feed wastewater up through a pipe in the center of the clarifier and distribute it into the “settling zone,” where the bacteria settles out of the water and falls to the bottom of the clarifier.
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