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California Wastewater Grade I
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wastewater grade 1 exam Wastewater Grade 1 Wastewaster Treatment Grade 1 Cert... Califor
92 terms 84 terms 108 terms 98 terms
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How does anaerobic digestion work? The process through which bacteria break down organic matter in the absence of
oxygen
What is the percent of BOD removed in a plant when the 91%
influent BOD is 245 mg/L and the effluent BOD is 22
mg/L?
What is an oxidation pond? Also called a Lagoon or Large and shallow ponds designed to treat wastewater through the interaction of
Stabilization pond. sunlight, bacteria and algae
What is an RBC? Rotating Biological Contactor, a treatment system using a series of large plastic
disks mounted on a horizontal shaft are partially submerged in primary effluent.
As the shaft rotates the disks are exposed alternately to air and wastewater,
allowing a layer of bacteria to grow on the disks and metabolize the organics in
the wastewater.
A pond that is used to treat raw wastewater Waste Stabilization Pond
, A pond with an aerobic top layer and anaerobic bottom Facultative Pond
layer
Another term for Primary Treatment Sedimentation
Processes to in a modern wastewater treatment plant are Most of, if not all, suspended material including settleable solids and colloidal
designed to remove most of what? particles
Combined Wastewater is defined as? Sanitary Wastewater and Stormwater Runoff
At what treatment stage is scum usually removed at? Primary Treatment
Once the oxygen is depleted in a natural body of water, Anaerobic Bacteria
which organisms take over?
Another name for primary treatment is what? Sedimentation
A pond that is used to treat raw wastewater is called Water stabilization pond
what?
A pond that has an aerobic top layer and an anaerobic Facultative pond
bottom layer is called what?
What is the angle of the bars on a manually cleaned bar 30 degrees
screen?
Which chemical gives water its greatest capacity to Hydroxide
neutralize acids?
Average detention time for wastewater in a primary 2 hours
clarifier?
Primary effluent and returned activated sludge mixture is Waste Activated Sludge (WAS)
called what?
Mixture of organisms and solids in water that is removed Mixed Liqour
from the settling tank is called what?
What test could be used to make process changes Chemic Oxygen Demand test (COD)
immediately?
California Wastewater Grade I
Leave the first rating
Students also studied
Flashcard sets Study guides
wastewater grade 1 exam Wastewater Grade 1 Wastewaster Treatment Grade 1 Cert... Califor
92 terms 84 terms 108 terms 98 terms
kamrank1988 Preview Sarah_Quintana4 Preview akvq14 Preview app
Terms in this set (98) Hide definitions
How does anaerobic digestion work? The process through which bacteria break down organic matter in the absence of
oxygen
What is the percent of BOD removed in a plant when the 91%
influent BOD is 245 mg/L and the effluent BOD is 22
mg/L?
What is an oxidation pond? Also called a Lagoon or Large and shallow ponds designed to treat wastewater through the interaction of
Stabilization pond. sunlight, bacteria and algae
What is an RBC? Rotating Biological Contactor, a treatment system using a series of large plastic
disks mounted on a horizontal shaft are partially submerged in primary effluent.
As the shaft rotates the disks are exposed alternately to air and wastewater,
allowing a layer of bacteria to grow on the disks and metabolize the organics in
the wastewater.
A pond that is used to treat raw wastewater Waste Stabilization Pond
, A pond with an aerobic top layer and anaerobic bottom Facultative Pond
layer
Another term for Primary Treatment Sedimentation
Processes to in a modern wastewater treatment plant are Most of, if not all, suspended material including settleable solids and colloidal
designed to remove most of what? particles
Combined Wastewater is defined as? Sanitary Wastewater and Stormwater Runoff
At what treatment stage is scum usually removed at? Primary Treatment
Once the oxygen is depleted in a natural body of water, Anaerobic Bacteria
which organisms take over?
Another name for primary treatment is what? Sedimentation
A pond that is used to treat raw wastewater is called Water stabilization pond
what?
A pond that has an aerobic top layer and an anaerobic Facultative pond
bottom layer is called what?
What is the angle of the bars on a manually cleaned bar 30 degrees
screen?
Which chemical gives water its greatest capacity to Hydroxide
neutralize acids?
Average detention time for wastewater in a primary 2 hours
clarifier?
Primary effluent and returned activated sludge mixture is Waste Activated Sludge (WAS)
called what?
Mixture of organisms and solids in water that is removed Mixed Liqour
from the settling tank is called what?
What test could be used to make process changes Chemic Oxygen Demand test (COD)
immediately?
