Explain the different steps involved during primary treatement phase o

1.	Explain the different steps involved during primary treatement phase of sewage.
Answer» The primary phase of sewage treatment involves physical removal of particals by filtration and sedimentatin. Different steps - Initially ,floating debrids of sewage water is removed by sequential filtration Then , grit (soil+ small pebbles ) is removed by sedimentation. The remaining solid particles, which have settld down, form the sludge while the supernatant forms the effluent . Effluent is then taken for secondary tratment .

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

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