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ANSWERS / 2025-2026
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Anaerobic
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Dangerous gases are produced
What should an operator do before during bacterial decomposition of
1 2
entering a manhole organics in wastewater. The main
gases are
Calculated the volume in gallons of
a rectangular aeration tank that is 60 Odors occur when treatment
3
feet long, 30 feet wide and 20 feet becomes
deep
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Terms in this set (28)
, Odors occur when treatment Anaerobic
becomes
What should an operator do Test for all hazardous gases and oxygen levels and ventilate the
before entering a manhole manhole before entering
What treatment devices is a mechanically raked bar screen
commonly used to separate
and remove large solids
from raw wastewater
What diseases are caused by Hepatitis, typhoid, paratyphoid, dysentery, and cholera
pathogenic organisms that
may be present in raw
wastewater?
What is typically used to Belt press, Drying beds, solid bowl centrifuge, and gravity
dewater sludge? thickener
Calculated the volume in 269,280
gallons of a rectangular
aeration tank that is 60 feet
long, 30 feet wide and 20
feet deep
What is typically used Lift station
whenever wastewater
cannot flow to the
treatment plant by gravity
A centrifugal pump must be ? Primed
or it will not pump
V-Knotch
One common type of weir
design for measuring flow is