WasteWater Sources & Characteristics:
What is the most common reason for a wastewater to contain intermittent large amounts of
sand, gravel, and grit? - ANSWER storm events
WasteWater Sources & Characteristics:
Combined wastewater is defined as - ANSWER sanitary wastewater and stormwater run-
off
WasteWater Sources & Characteristics:
In general, the solids content in wastewater is about - ANSWER 0.1%
WasteWater Sources & Characteristics:
In general, what is the % of suspended solids in the total amount of solids - ANSWER 30%
WasteWater Sources & Characteristics:
Generally, the % of dissolved solids in the amount of total solids is about - ANSWER 70%
WasteWater Sources & Characteristics:
1
,Which type of organisms would most probably be associated with poor treatment or young
biomass - ANSWER 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 - ANSWER stalked cilates
Basic WasteWater Treatment:
Aerobic bacteria will reproduce and live in an environment that contains only - ANSWER
oxygen
Basic WasteWater Treatment:
Anaerobic bacteria will reproduce and live only in an environment that completely lacks -
ANSWER free or dissolved oxygen
Basic WasteWater Treatment:
The biochemical oxygen demand (BOD) test usually has a specific time of - ANSWER 5
days
Basic WasteWater Treatment:
An Imhoff cone measures - ANSWER volume of settleable solids
Basic WasteWater Treatment:
2
, Septic conditions are caused by - ANSWER anaerobic bacteria
Basic WasteWater Treatment:
Scum is usually removed in the _____treatment stage - ANSWER primary
Basic WasteWater Treatment:
When domestic wastewater enters natural waters, what species deplete most of the oxygen
- ANSWER aerobic bacteria
Basic WasteWater Treatment:
Once the oxygen is depleted in a natural body of water, which organisms take over? - AN-
SWER anaerobic
Basic WasteWater Treatment:
The major gas produces by anaerobic decomposition is - ANSWER methane
Wastewater Treatment Facilities:
Another name for promary treatment is - ANSWER sedimentation
Wastewater Treatment Facilities:
Digester gas is_______when mixed with air the the proper proportions - ANSWER ex-
tremely explosive
3
What is the most common reason for a wastewater to contain intermittent large amounts of
sand, gravel, and grit? - ANSWER storm events
WasteWater Sources & Characteristics:
Combined wastewater is defined as - ANSWER sanitary wastewater and stormwater run-
off
WasteWater Sources & Characteristics:
In general, the solids content in wastewater is about - ANSWER 0.1%
WasteWater Sources & Characteristics:
In general, what is the % of suspended solids in the total amount of solids - ANSWER 30%
WasteWater Sources & Characteristics:
Generally, the % of dissolved solids in the amount of total solids is about - ANSWER 70%
WasteWater Sources & Characteristics:
1
,Which type of organisms would most probably be associated with poor treatment or young
biomass - ANSWER 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 - ANSWER stalked cilates
Basic WasteWater Treatment:
Aerobic bacteria will reproduce and live in an environment that contains only - ANSWER
oxygen
Basic WasteWater Treatment:
Anaerobic bacteria will reproduce and live only in an environment that completely lacks -
ANSWER free or dissolved oxygen
Basic WasteWater Treatment:
The biochemical oxygen demand (BOD) test usually has a specific time of - ANSWER 5
days
Basic WasteWater Treatment:
An Imhoff cone measures - ANSWER volume of settleable solids
Basic WasteWater Treatment:
2
, Septic conditions are caused by - ANSWER anaerobic bacteria
Basic WasteWater Treatment:
Scum is usually removed in the _____treatment stage - ANSWER primary
Basic WasteWater Treatment:
When domestic wastewater enters natural waters, what species deplete most of the oxygen
- ANSWER aerobic bacteria
Basic WasteWater Treatment:
Once the oxygen is depleted in a natural body of water, which organisms take over? - AN-
SWER anaerobic
Basic WasteWater Treatment:
The major gas produces by anaerobic decomposition is - ANSWER methane
Wastewater Treatment Facilities:
Another name for promary treatment is - ANSWER sedimentation
Wastewater Treatment Facilities:
Digester gas is_______when mixed with air the the proper proportions - ANSWER ex-
tremely explosive
3
