WASTEWATER TREATMENT PLANT

What is the main purpose of wastewater treatment?

• To generate electricity

• To increase water pollution

• To produce clean drinking water

• To remove harmful compounds and microorganisms

Which of the following is NOT a type of wastewater mentioned in the text?

• Domestic

• Industrial

• Rainwater

• Drinking water

What does BOD stand for in the context of wastewater treatment?

• Bacterial Oxygen Density

• Basic Organic Decomposition

• Biological Oxygen Demand

• Biochemical Oxygen Demand

What is the primary purpose of a septic tank?

• To treat industrial wastewater

• To store clean water

• To treat domestic wastewater in areas without a sewerage system

• To generate electricity

Which of the following is NOT a characteristic of wastewater mentioned in the text?

• Temperature

• Odour

• Colour

• Taste

What is the typical length to width ratio for a septic tank?

• 3:1

• 1:1

• 2:1

• 4:1

What is the main component of wastewater that is measured by BOD?

• Chemical compounds

• Microorganisms

• Organic matter

• Inorganic matter

What is the purpose of the preliminary treatment in wastewater treatment plants?

• To add chemicals for treatment

• To remove large debris

• To separate sludge

• To disinfect the water

What is the main reason wastewater is harmful to health?

• It contains pathogenic microorganisms and harmful compounds

• It is too cold

• It contains too much oxygen

• It is too clean

What is the primary function of a sewerage system?

• To generate electricity

• To store clean water

• To collect and transport wastewater

• To treat wastewater