Water treatment and filtration

What is the final phase of Wastewater Treatment?

• Storage in a water tower for use in homes

• Discharge into a river, stream, ocean, etc.

• Settling tank

• Filtration

What is the first phase of Drinking Water treatment?

• Storage in a water tower

• Aeration (bubbling)

• Pumping from a river, reservoir, lake, or groundwater

• Chlorination

What is this part of wastewater treatment (just after floc is added)?

• Bar screen

• Water tower

• Filter

• Settling tank or clarifier

What is the first step in wastewater treatment (pictured)?

• Filtration with a bar screen

• Aeration tank

• Coagulation

• Aeration

Can sand pass through filter paper?

• Yes

• No

What is the best way to purify water?

• Add salt

• Put inside the refrigerator

• Filtration or Boiling

• Find a very clean stream of water

Tags

NGSS.MS-PS1-3

Which of these particles is NOT able to pass through a sand, gravel, and charcoal filter?

• bacteria

• water

• viruses

• large piece of dirt

What does chlorination do to the water?

• Removes microorganisms
• Cleans the water
• Makes the water taste nice
• Removes twigs and sediment

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are two things that water treatment plants need to do?

• Clean and disinfect the water
• Boil and evaporate the water
• Remove the animals and plants
• Add chemicals and remove pesticides

Which THREE of these are steps in wastewater treatment?

• Percolation

• Filtration

• Distillation

• Settling

• Chlorination

Tags

NGSS.MS-PS1-2