Explain the different steps involved during primary treatment phase of sewage.

Solution

The primary phase of sewage treatment involves physical removal of particles by filtration and sedimentation.
Different steps involved during the primary treatment are as follows:

i. Initially, floating debris of sewage water is removed by sequential filtration.

ii. Then, grit (soil and small pebbles) are removed by sedimentation.

Effluent (that is the supernatant formed when all the solids settle from the primary sludge) is then taken for secondary treatment.

Some More Questions From Microbes in Human Welfare Chapter

Name one micro-organism which is used in bakery.

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Microbes In Human Welfare

Explain the different steps involved during primary treatment phase of sewage.

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Name one micro-organism which is used in bakery.

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