Waste Water Operator Certification
Study Guide Grade 1 Already Passed
WasteWater Sources & Characteristics:
What is the most common reason for a wastewater to contain intermittent large amounts of sand,
gravel, and grit? ✔✔storm events
WasteWater Sources & Characteristics:
Combined wastewater is defined as ✔✔sanitary wastewater and stormwater runoff
WasteWater Sources & Characteristics:
In general, the solids content in wastewater is about ✔✔0.1%
WasteWater Sources & Characteristics:
In general, what is the % of suspended solids in the total amount of solids ✔✔30%
,WasteWater Sources & Characteristics:
Generally, the % of dissolved solids in the amount of total solids is about ✔✔70%
WasteWater Sources & Characteristics:
Which type of organisms would most probably be associated with poor treatment or young
biomass ✔✔amoebas
WasteWater Sources & Characteristics:
Which type of organisms would most probably be associated with very clear plant effluent. low
BOD and low amounts of suspended solids ✔✔stalked cilates
Basic WasteWater Treatment:
Aerobic bacteria will reproduce and live in an environment that contains only ✔✔oxygen
, Basic WasteWater Treatment:
Anaerobic bacteria will reproduce and live only in an environment that completely lacks ✔✔free
or dissolved oxygen
Basic WasteWater Treatment:
The biochemical oxygen demand (BOD) test usually has a specific time of ✔✔5 days
Basic WasteWater Treatment:
An Imhoff cone measures ✔✔volume of settleable solids
Basic WasteWater Treatment:
Septic conditions are caused by ✔✔anaerobic bacteria
Study Guide Grade 1 Already Passed
WasteWater Sources & Characteristics:
What is the most common reason for a wastewater to contain intermittent large amounts of sand,
gravel, and grit? ✔✔storm events
WasteWater Sources & Characteristics:
Combined wastewater is defined as ✔✔sanitary wastewater and stormwater runoff
WasteWater Sources & Characteristics:
In general, the solids content in wastewater is about ✔✔0.1%
WasteWater Sources & Characteristics:
In general, what is the % of suspended solids in the total amount of solids ✔✔30%
,WasteWater Sources & Characteristics:
Generally, the % of dissolved solids in the amount of total solids is about ✔✔70%
WasteWater Sources & Characteristics:
Which type of organisms would most probably be associated with poor treatment or young
biomass ✔✔amoebas
WasteWater Sources & Characteristics:
Which type of organisms would most probably be associated with very clear plant effluent. low
BOD and low amounts of suspended solids ✔✔stalked cilates
Basic WasteWater Treatment:
Aerobic bacteria will reproduce and live in an environment that contains only ✔✔oxygen
, Basic WasteWater Treatment:
Anaerobic bacteria will reproduce and live only in an environment that completely lacks ✔✔free
or dissolved oxygen
Basic WasteWater Treatment:
The biochemical oxygen demand (BOD) test usually has a specific time of ✔✔5 days
Basic WasteWater Treatment:
An Imhoff cone measures ✔✔volume of settleable solids
Basic WasteWater Treatment:
Septic conditions are caused by ✔✔anaerobic bacteria
