Basic Wastewater D Complete Exam Study Guide With
Practice Questions and Verified Answer, Exams of
Nursing
flume - ANSWERrestriction in an open channel used to measure flow
hydraulic retention time (HRT) - ANSWERThe period of time that wastewater
remains in a tank. This term is also known as detention time.
sludge age - ANSWERtheoretical time a particle of activated sludge stays in
the treatment plant.
Inflow and Infiltration (I/I) - ANSWERany unwanted clear water that leaks into
a collection system. Consists of ground water, rainwater, or snow melt
sanitary sewer overflow (SSO) - ANSWERa release of wastewater from a
sewage collection system or interceptor sewer directly into a water of the
state or to the land surface. All SSOs must be reported to DNR within 24 hrs
of occurrence
treatment facility overflow (TFO) - ANSWERa release of wastewater, other
than through permitted outfalls, from a wastewater facility into a water of
the state or land surface.
, anoxic - ANSWERcondition under which oxygen is only available in a
combined form such as nitrate (NO3), nitrite (NO2), or sulfate (SO4) in an
aqueous environment
clarifier - ANSWERA circular or rectangular tank used to remove floatable and
settleable solids in wastewater.
primary treatment - ANSWERconsists of clarification by solid and liquid
separation removing a substantial amount of floating matter
process control - ANSWERThe tools and methods used to optimize treatment
plant operations.
Return Activated Sludge (RAS) - ANSWERThe settled activated sludge
(biomass) collected in a final clarifier and returned to the secondary
treatment process to mix with incoming wastewater. This returns a
concentrated population of microorganisms back into the aeration basin.
secondary treatment - ANSWERuses biological processes that utilize bacteria
to remove pollutants
Wisconsin pollutant discharge elimination system (WPDES) permit -
ANSWERissued to wastewater facility owners and contains facility effluent,
bio solids and sludge limitations, conditions, and reporting requirements
inflow - ANSWERflows increase as soon as rain flows, and slows when rain
stops
Practice Questions and Verified Answer, Exams of
Nursing
flume - ANSWERrestriction in an open channel used to measure flow
hydraulic retention time (HRT) - ANSWERThe period of time that wastewater
remains in a tank. This term is also known as detention time.
sludge age - ANSWERtheoretical time a particle of activated sludge stays in
the treatment plant.
Inflow and Infiltration (I/I) - ANSWERany unwanted clear water that leaks into
a collection system. Consists of ground water, rainwater, or snow melt
sanitary sewer overflow (SSO) - ANSWERa release of wastewater from a
sewage collection system or interceptor sewer directly into a water of the
state or to the land surface. All SSOs must be reported to DNR within 24 hrs
of occurrence
treatment facility overflow (TFO) - ANSWERa release of wastewater, other
than through permitted outfalls, from a wastewater facility into a water of
the state or land surface.
, anoxic - ANSWERcondition under which oxygen is only available in a
combined form such as nitrate (NO3), nitrite (NO2), or sulfate (SO4) in an
aqueous environment
clarifier - ANSWERA circular or rectangular tank used to remove floatable and
settleable solids in wastewater.
primary treatment - ANSWERconsists of clarification by solid and liquid
separation removing a substantial amount of floating matter
process control - ANSWERThe tools and methods used to optimize treatment
plant operations.
Return Activated Sludge (RAS) - ANSWERThe settled activated sludge
(biomass) collected in a final clarifier and returned to the secondary
treatment process to mix with incoming wastewater. This returns a
concentrated population of microorganisms back into the aeration basin.
secondary treatment - ANSWERuses biological processes that utilize bacteria
to remove pollutants
Wisconsin pollutant discharge elimination system (WPDES) permit -
ANSWERissued to wastewater facility owners and contains facility effluent,
bio solids and sludge limitations, conditions, and reporting requirements
inflow - ANSWERflows increase as soon as rain flows, and slows when rain
stops
