Waste Water Treatment

We should not throw cooking oil and paint down the drain because

• they break the pipe

• they harden and clog the pipe

• they flow through the drain freely

• None of these

Which of the following is a good practice be followed?

• Cooking oil and paint should not be thrown down a drain.

• Used tea leaves, solid food and cotton should not be thrown in the drain.

• Chemicals like insecticides should not throw in the drain.

• All of the above

Tags

NGSS.MS-ESS3-3

NGSS.MS-LS2-5

What happens to the sewage at the inlet works?

• The organic matter is eaten by bacteria.

• The sludge and solids are separated from the liquid.

• It is screened to remove unwanted objects like baby wipes etc.

• It is filtered and disinfected.

Which is the correct order for these three processes of sewage treatment? (disinfection, inlet works and bio reactor)

• 1. inlet works, 2. disinfection 3. bio reactor

• 1. bio reactor, 2. disinfection 3. inlet works

• 1. inlet works, 2. bio reactor 3. disinfection

• 1. disinfection, 2. bio reactor 3. inlet works

Where is the sludge and solids separated from the liquid?

• Inlet works

• Clarifyers

• Sewage treatment plant

• Bio reactor

What do u mean by WWTP?

• Wastewater Treatment Plant

• Wasting Water Together

• Wasted Water Treating Plant

Which of the following are products of wastewater treatment ?

• Bio - gas

• Sludge

• Both biogas and sludge

• None of the above

Advantages of Sewage System

• The domestic sewage treatment plant needs to be running

  steadily to be effective.

• The sewerage system provides a healthier and more appropriate way to manage liquid wastes.

• The sewerage system provides a healthier and more appropriate way to manage solid wastes.

Tags

NGSS.MS-ETS1-3

Which chemical is used to disinfect the water

• Washing Soda

• Silica

• Chlorine

• None of the above

Why should we plant eucalyptus trees near the sewage?

• Eucalyptus trees should be planted along with sewage ponds

  because these trees absorb all surplus wastewater

  quickly

• Eucalyptus trees should be planted along with sewage ponds

  because they give fresh oxygen so it can purify the water

• Eucalyptus trees should be planted along with sewage ponds

  because these trees purify the dust in water

Tags

NGSS.MS-LS2-5