What should the rotation speed be for an RBC?
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1.5 RPM
How do trickling filters treat wastewater?
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Despite the name, they do not filter. Wastewater is distributed over the
media and trickles down over the biological slime layer attached to the
media. This layer is called zoogleal film. Organic matter is converted into
settleable material which is collected in the underdrains with the trickling
filter effluent.
,Define infiltration.
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Groundwater that makes its way into the sewer system through cracks and
joints.
What are fecal coliform bacteria?
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Bacteria that live in the intestines of humans and other mammals.
When the temperature starts to increase in the spring, there is less dissolved oxygen
in the wastewater and the organisms are more active. What actions should be taken to
help maintain good conditions?
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Increase aeration and decrease organisms
How often do bacteria reproduce/split?
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, every 20 - 30 minutes
How often do stabilization ponds discharge?
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Typically once in the spring and once in the fall
What are the elements of a UV light disinfection system?
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Lamp: emits UV light
Sleeve: protects the lamp
Ballast: provides power to the lamps
What factors affect chlorine dosage?
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Flow, contact time, temperature, pH, hydrogen sulfide, ammonia, organic
matter
Give this one a try later!
1.5 RPM
How do trickling filters treat wastewater?
Give this one a try later!
Despite the name, they do not filter. Wastewater is distributed over the
media and trickles down over the biological slime layer attached to the
media. This layer is called zoogleal film. Organic matter is converted into
settleable material which is collected in the underdrains with the trickling
filter effluent.
,Define infiltration.
Give this one a try later!
Groundwater that makes its way into the sewer system through cracks and
joints.
What are fecal coliform bacteria?
Give this one a try later!
Bacteria that live in the intestines of humans and other mammals.
When the temperature starts to increase in the spring, there is less dissolved oxygen
in the wastewater and the organisms are more active. What actions should be taken to
help maintain good conditions?
Give this one a try later!
Increase aeration and decrease organisms
How often do bacteria reproduce/split?
Give this one a try later!
, every 20 - 30 minutes
How often do stabilization ponds discharge?
Give this one a try later!
Typically once in the spring and once in the fall
What are the elements of a UV light disinfection system?
Give this one a try later!
Lamp: emits UV light
Sleeve: protects the lamp
Ballast: provides power to the lamps
What factors affect chlorine dosage?
Give this one a try later!
Flow, contact time, temperature, pH, hydrogen sulfide, ammonia, organic
matter
