Waste water treatment

What is a waste water treatment plant?

• The place where water is cleaned, filtered and tested before going back into the river.

• The place where water is cleaned, filtered and tested before going to our houses.

• The network of pipes that carry sewage (dirty water) from our houses.

• The place where water is bottled for drinking.

What is the sewage network?

• The place where water is cleaned before being returned to rivers.

• The pipes that carry sewage (dirty water) from our houses to the wastewater treatment plant.

• The place where all our sewage is cleaned.

• The place where water is cleaned before being returned to our taps.

Tags

NGSS.MS-ETS1-1

When the water is clean where is it returned to?

• Our taps.

• The sea.

• The river.

• The reservoir.

Tags

NGSS.MS-ESS2-4

What is the first stage of the wastewater plant?

• Screening

• Primary treatment

• Secondary treatment

• Final treatment

What kinds of things are stopped by the screens?

• water

• Big things e.g. cloth, rags, bricks

• small things

• cars

How many hours does it take to clean the waste water and make it safe to return to the river?

• 4 years

• 40 minutes

• 4 days

• 4 hours

What happens to the solid sludge (sludge cakes) once they are dried?

• They go in the river

• They eat them

• They are burnt

• They throw them away

Why is wastewater treatment important?

• To protect the environment and keep people healthy

• To promote the growth of harmful bacteria
• To save money and resources
• To increase pollution and harm public health

Tags

NGSS.MS-ESS3-4