Wastewater and Water Treatment Quiz

What is wastewater?

• Clean water

• Used water

• Rainwater

• Drinking water

What is the main purpose of sewage treatment?

• To increase water temperature

• To remove pollutants

• To create drinking water

• To add chemicals

Which of the following is a common impurity found in sewage?

• Hydrogen

• Carbon dioxide

• Nitrates

• Oxygen

What is sludge?

• Solid waste from treatment

• Clean water

• Liquid waste

• Airborne particles

What is the role of bar screens in wastewater treatment?

• To cool the water

• To add nutrients

• To filter out large objects

• To aerate the water

What is a major cause of water-related diseases?

• Water filtration

• Untreated sewage

• Clean drinking water

• Rainwater harvesting

Which chemical is commonly used to disinfect water?

• Hydrogen peroxide

• Chlorine

• Nitrogen

• Oxygen

What happens to the treated water after it leaves the treatment plant?

• It is released into natural bodies of water

• It is stored indefinitely

• It is used for drinking

• It is evaporated

What is the main source of sewage?

• Rainwater

• Agricultural runoff

• Industrial waste

• Household activities

What is the purpose of aeration in wastewater treatment?

• To add chemicals

• To cool the water

• To help bacteria grow

• To remove solids