WasteWater Operator Certification Study Guide Grade 1
Study online at https://quizlet.com/_cnvqa
1. WasteWater Sources & Characteristics: storm events
What is the most common reason for a wastewater
to contain intermittent large amounts of sand, gravel,
and grit?
2. WasteWater Sources & Characteristics: sanitary wastewater and
stormwater runoff
Combined wastewater is defined as
3. WasteWater Sources & Characteristics: 0.1%
In general, the solids content in wastewater is about
4. WasteWater Sources & Characteristics: 30%
In general, what is the % of suspended solids in the
total amount of solids
5. WasteWater Sources & Characteristics: 70%
Generally, the % of dissolved solids in the amount of
total solids is about
6. WasteWater Sources & Characteristics: amoebas
Which type of organisms would most probably be as-
sociated with poor treatment or young biomass
7. WasteWater Sources & Characteristics: stalked cilates
Which type of organisms would most probably be as-
sociated with very clear plant effluent. low BOD and
low amounts of suspended solids
, WasteWater Operator Certification Study Guide Grade 1
Study online at https://quizlet.com/_cnvqa
8. Basic WasteWater Treatment: oxygen
Aerobic bacteria will reproduce and live in an environ-
ment that contains only
9. Basic WasteWater Treatment: free or dissolved oxygen
Anaerobic bacteria will reproduce and live only in an
environment that completely lacks
10. Basic WasteWater Treatment: 5 days
The biochemical oxygen demand (BOD) test usually
has a specific time of
11. Basic WasteWater Treatment: volume of settleable solids
An Imhoff cone measures
12. Basic WasteWater Treatment: anaerobic bacteria
Septic conditions are caused by
13. Basic WasteWater Treatment: primary
Scum is usually removed in the _____treatment stage
14. Basic WasteWater Treatment: aerobic bacteria
When domestic wastewater enters natural waters,
what species deplete most of the oxygen
15. Basic WasteWater Treatment: anaerobic
Study online at https://quizlet.com/_cnvqa
1. WasteWater Sources & Characteristics: storm events
What is the most common reason for a wastewater
to contain intermittent large amounts of sand, gravel,
and grit?
2. WasteWater Sources & Characteristics: sanitary wastewater and
stormwater runoff
Combined wastewater is defined as
3. WasteWater Sources & Characteristics: 0.1%
In general, the solids content in wastewater is about
4. WasteWater Sources & Characteristics: 30%
In general, what is the % of suspended solids in the
total amount of solids
5. WasteWater Sources & Characteristics: 70%
Generally, the % of dissolved solids in the amount of
total solids is about
6. WasteWater Sources & Characteristics: amoebas
Which type of organisms would most probably be as-
sociated with poor treatment or young biomass
7. WasteWater Sources & Characteristics: stalked cilates
Which type of organisms would most probably be as-
sociated with very clear plant effluent. low BOD and
low amounts of suspended solids
, WasteWater Operator Certification Study Guide Grade 1
Study online at https://quizlet.com/_cnvqa
8. Basic WasteWater Treatment: oxygen
Aerobic bacteria will reproduce and live in an environ-
ment that contains only
9. Basic WasteWater Treatment: free or dissolved oxygen
Anaerobic bacteria will reproduce and live only in an
environment that completely lacks
10. Basic WasteWater Treatment: 5 days
The biochemical oxygen demand (BOD) test usually
has a specific time of
11. Basic WasteWater Treatment: volume of settleable solids
An Imhoff cone measures
12. Basic WasteWater Treatment: anaerobic bacteria
Septic conditions are caused by
13. Basic WasteWater Treatment: primary
Scum is usually removed in the _____treatment stage
14. Basic WasteWater Treatment: aerobic bacteria
When domestic wastewater enters natural waters,
what species deplete most of the oxygen
15. Basic WasteWater Treatment: anaerobic
