Class C Wastewater Exam
Questions and Answers
2024/2025 (Graded A+)
Save
Terms in this set (59)
,The Activated C. Is an Aerobic biological process
Sludge Process:
A. requires
preaeration
B. requires
Activated
Carbon
C. is an aerobic
biological
process.
D. Usually
precedes
primary
sedimentation.
E. Requires 50%
by volume old
sludge to work
effectively.
,A complete mix D. Increase the F/M Ratio by
activated Wasting More
sludge plant
has a fast
settling sludge
and high
amounts of pin
floc leaving the
clarifier. One
way to correct
this problem is
to :
A. Increase the
RAS Flow
B. Reduce
Wasting Rates
C. Increase
dissolved
oxygen levels.
D. Increase the
F/M ratio by
wasting more
E. Increase the
sludge age by
wasting less
, wasting less.
Which of the E. all the above
following flow
rates should be
measured if the
operator is to
control plant
properly?
A. Aeration rate
or resulting
dissolved
oxygen level.
B. Influent or
effluent.
C. return sludge
D. waste sludge
E. all the above
Questions and Answers
2024/2025 (Graded A+)
Save
Terms in this set (59)
,The Activated C. Is an Aerobic biological process
Sludge Process:
A. requires
preaeration
B. requires
Activated
Carbon
C. is an aerobic
biological
process.
D. Usually
precedes
primary
sedimentation.
E. Requires 50%
by volume old
sludge to work
effectively.
,A complete mix D. Increase the F/M Ratio by
activated Wasting More
sludge plant
has a fast
settling sludge
and high
amounts of pin
floc leaving the
clarifier. One
way to correct
this problem is
to :
A. Increase the
RAS Flow
B. Reduce
Wasting Rates
C. Increase
dissolved
oxygen levels.
D. Increase the
F/M ratio by
wasting more
E. Increase the
sludge age by
wasting less
, wasting less.
Which of the E. all the above
following flow
rates should be
measured if the
operator is to
control plant
properly?
A. Aeration rate
or resulting
dissolved
oxygen level.
B. Influent or
effluent.
C. return sludge
D. waste sludge
E. all the above
