Wastewater Management

What is the first phase of the wastewater treatment called?

• Secondary Treatment Phase

• Primary Treatment Phase

• Tertiary Treatment Phase

What is the purpose of the primary treatment phase?

• To remove pathogens

• To remove large solids

• To remove bacteria

What is the second phase of water treatment called?

• Primary Phase

• Tertiary Phase

• Biological Treatment Phase

What is the goal of the biological treatment phase?

• To remove solids

• To remove biological waste

• To remove non-biological waste

What is used to clean sewage during the biological treatment phase?

• UV radiation

• Bacteria and sunlight

• Chemicals

What is the purpose of the tertiary phase?

• To remove solids

• To remove biological substances

• To remove non-biological substance

How are pathogens removed from wastewater?

• UV radiation and chemicals

• strainers

• sedimentation tanks

According to the video, choose all the places that treated sewage are used. There are 3 correct answers.

• Domestic Purposes

• Industrial Purposes

• Recreational Purposes

• Agricultural Purposes

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Where is a septic tank used?

• Rural areas

• New York City

• Chicago

• Atlanta