What Happens After You Flush?

The video explores the historical event known as The Big Stink in London, which highlighted the need for modern sewage treatment. It discusses the dangers of untreated sewage, including pathogens and environmental harm. The video explains how septic systems and sewer systems manage waste, detailing processes like anaerobic digestion and wastewater treatment. It emphasizes the importance of treating sewage to protect public health and the environment.

What historical event in London led to the development of modern sewage systems?

• The Great Fire

• The Big Stink

• The Industrial Revolution

• The London Flood

Why is human waste considered dangerous after it leaves the body?

• It is beneficial for the environment

• It contains essential nutrients

• It is completely sterile

• It can harbor harmful pathogens

What percentage of North Americans rely on septic systems for waste management?

• 75%

• 50%

• 25%

• 10%

What is the primary role of anaerobic bacteria in septic systems?

• To add oxygen to the water

• To increase water flow

• To filter out large debris

• To break down human waste

What is the purpose of the primary clarifier in wastewater treatment?

• To aerate the water

• To add chemicals to the water

• To remove large debris

• To slow down sewage for solid separation

What is the final product of the wastewater treatment process that can be used as fertilizer?

• Raw sewage

• Activated sludge

• Biosolids

• Gray water

What is the main change in wastewater treatment over the last few decades?

• Eliminating the use of digesters

• Stopping treatment after primary clarification

• Introducing secondary treatment

• Using untreated water for irrigation