Wastewater Treatment Quiz1

Where does all the city's wastewater eventually go?

• Into the air

• Into the ocean

• Into a wastewater treatment plant

• Into the ground

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

What is the first step in the wastewater treatment process?

• Bar screen

• Primary clarifier

• Aeration basin

• Grit chamber

What is the purpose of the bar screen?

• To add chemicals to the water

• To remove larger items from the sewage

• To disinfect the water

• To add oxygen to the water

What is the main function of the grit chamber?

• To remove chlorine from the water

• To disinfect the water

• To add bacteria to the water

• To remove sand and rock particles

What is the primary clarifier used for?

• To remove bacteria from the water

• To add oxygen to the water

• To remove larger particles from the sewage

• To add chlorine to the water

What is the purpose of the aeration basin?

• To add chemicals to the water

• To add bacteria and oxygen to the water

• To remove chlorine from the water

• To remove sand and rock particles

Tags

NGSS.MS-ESS2-4

What is the final step in the wastewater treatment process?

• Disinfection

• Grit chamber

• Bar screen

• Primary clarifier

Tags

NGSS.HS-ESS2-5

NGSS.HS-ESS3-4

NGSS.HS-LS2-7

Which method is NOT used for disinfection?

• Ultraviolet light

• Aeration

• Ozone

• Chlorine

What happens to the water after the disinfection process?

• It is sent to a landfill

• It is evaporated into the air

• It is stored in tanks

• It is released back into a stream or lake

Tags

NGSS.MS-ESS2-4

How long does the entire wastewater treatment process take on average?

• 1 week

• 12 to 18 hours

• 48 to 72 hours

• 24 to 36 hours