Wastewater Operator Grade 1 EXAM COVERAGE
Wastewater Operator Grade 1
Basic wastewater treatment principles and
terminology
Treatment stages: preliminary, primary,
secondary
Collection systems basics (gravity lines, lift
stations, pumps)
Screening, grit removal, and sedimentation
processes
Activated sludge fundamentals and basic
biological treatment
Sludge handling basics (thickening, digestion
overview)
Disinfection methods (chlorination,
dechlorination, UV basics)
Laboratory testing: pH, DO, BOD, TSS
Flow measurement and sampling procedures
Basic process control calculations (flow,
detention time, pounds formula)
Equipment operation and routine maintenance
Safety practices (PPE, confined space,
lockout/tagout)
Regulatory compliance and permit basics
(NPDES overview)
, Recordkeeping, reporting, and operator
responsibilities
Combined wastewater is defined sanitary wastewater and stormwater runoff
as
In general, the solids content in 0.1%
wastewater is about
In general, what is the percentage 30%
of suspended solids in the total
amount of solids?
What is the most common reason storm events
for a wastewater to contain
intermittent large
amounts of sand, gravel, and grit?
Generally, the percentage of 70%
dissolved solids in the amount of
total solids is about
, Which type of organisms would amoebas
most probably be associated with
poor treatment or
young biomass?
Which type of organisms would stalked ciliates
most probably be associated with
very clear plant
effluent, low biochemical oxygen
demand (BOD), and low amounts
of suspended solids?
Aerobic bacteria will reproduce oxygen
and live in an environment that
contains only
Anaerobic bacteria will reproduce free or dissolved oxygen (DO)
and live only in an environment
that completely lacks
The biochemical oxygen demand 5 days
(BOD) test usually has a specific
time of
An Imhoff cone measures volume of settleable solids
Wastewater Operator Grade 1
Basic wastewater treatment principles and
terminology
Treatment stages: preliminary, primary,
secondary
Collection systems basics (gravity lines, lift
stations, pumps)
Screening, grit removal, and sedimentation
processes
Activated sludge fundamentals and basic
biological treatment
Sludge handling basics (thickening, digestion
overview)
Disinfection methods (chlorination,
dechlorination, UV basics)
Laboratory testing: pH, DO, BOD, TSS
Flow measurement and sampling procedures
Basic process control calculations (flow,
detention time, pounds formula)
Equipment operation and routine maintenance
Safety practices (PPE, confined space,
lockout/tagout)
Regulatory compliance and permit basics
(NPDES overview)
, Recordkeeping, reporting, and operator
responsibilities
Combined wastewater is defined sanitary wastewater and stormwater runoff
as
In general, the solids content in 0.1%
wastewater is about
In general, what is the percentage 30%
of suspended solids in the total
amount of solids?
What is the most common reason storm events
for a wastewater to contain
intermittent large
amounts of sand, gravel, and grit?
Generally, the percentage of 70%
dissolved solids in the amount of
total solids is about
, Which type of organisms would amoebas
most probably be associated with
poor treatment or
young biomass?
Which type of organisms would stalked ciliates
most probably be associated with
very clear plant
effluent, low biochemical oxygen
demand (BOD), and low amounts
of suspended solids?
Aerobic bacteria will reproduce oxygen
and live in an environment that
contains only
Anaerobic bacteria will reproduce free or dissolved oxygen (DO)
and live only in an environment
that completely lacks
The biochemical oxygen demand 5 days
(BOD) test usually has a specific
time of
An Imhoff cone measures volume of settleable solids
