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Wastewater Treatment Methods Quiz

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Questions and Answers

What is the purpose of screening in a municipal sewage system?

To remove large particles of solid waste before final treatment (correct)

To provide final treatment to liquid waste

To introduce large particles of solid waste

To increase the volume of solid waste

Which of the following is NOT one of the principles involved in lagooning for waste disposal?

Oxidation (correct)

Biological Action (aerobic and anaerobic)

Sedimentation

Evaporation

In which type of lagoon does the volumetric capacity equal the total waste flow with less loss due to evaporation and percolation?

Biological Lagoon

Impounding Lagoon (correct)

Flow-through Lagoon

Sedimentation Lagoon

Which factor is NOT required when setting up spray irrigation for waste disposal?

Distance from the city center Signup and view all the answers

What type of treatment is not mentioned in the text for waste disposal?

Thermal Treatment Signup and view all the answers

Why is it important to store chemicals of the same category together?

To prevent chemical reactions Signup and view all the answers

What special storage requirement do flammable chemicals like methanol have?

Should be kept away from heat Signup and view all the answers

Why are oxidizing substances stored separately from other chemicals?

To prevent quick reactions with other chemicals Signup and view all the answers

What safety risk do toxic chemicals pose if they come in contact with your skin?

They can cause skin corrosion Signup and view all the answers

Why is it crucial to check the expiry date of chemicals before using them?

To confirm their strength and effectiveness Signup and view all the answers