How Are Oils and Grease Removed from Used Household or Restaurant

question 105

Multiple Choice

How are oils and grease removed from used household or restaurant water?

• A)They sink to the bottom of a sedimentation tank and are removed.
• B)A rotating skimmer removes them from the surface of a holding tank.
• C)They are filtered off with screens.
• D)They cannot be separated in wastewater treatment.

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Definitions:

Endorphins

Naturally occurring peptides produced in the brain that act as neurotransmitters to reduce the perception of pain and promote feelings of pleasure.

Morphine

An opiate analgesic derived from the opium poppy used for pain relief.

Sympathetic Systems

A part of the autonomic nervous system responsible for the body's 'fight or flight' response to stressful situations.

Parasympathetic Systems

A branch of the autonomic nervous system responsible for conserving energy and reducing the heart rate.