Wastewater Treatment Quiz

What are the three phases of wastewater treatment?

• Primary, Secondary, Tertiary

• Initial, Middle, Final

• Basic, Intermediate, Advanced

• First, Second, Third

What is the purpose of tertiary treatment in wastewater management?

• To add nutrients

• To remove extra nutrients and particles

• To increase water flow

• To add oxygen

What is zooplankton?

• Large fish

• Small protozoa and crustaceans

• Aquatic plants

• Algae

What is greywater?

• Water from toilets

• Water from domestic activities like laundry

• Industrial waste water

• Rainwater

What happens to sewage sludge in primary treatment?

• It is filtered

• It is digested in a separate process

• It is evaporated

• It is chlorinated

What is the main component removed during secondary treatment?

• Solids

• Biological matter

• Heavy metals

• Nutrients

What is the purpose of using fixed film systems in secondary treatment?

• To increase water temperature

• To allow bacteria to grow on filters

• To add chemicals

• To remove oxygen

What is the significance of aerobic conditions in sewage treatment?

• They reduce water flow

• They facilitate bacterial growth

• They remove nutrients

• They increase solid waste

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What is the purpose of tertiary treatment in wastewater management?

• To remove large debris from sewage

• To further clean water before discharge into sensitive ecosystems

• To add nutrients to the water

• To increase the water temperature

Tags

NGSS.MS-LS2-5

Which method is used in tertiary treatment to remove particulate matter?

• Chemical precipitation

• Sand filtration

• Chlorination

• Aeration