Select the mismatched option from the followi | vedclass

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(D) In the process of sewage treatment,the primary treatment involves physical removal of particles through filtration and sedimentation.$1$. Filtrati

Vedclass · Accepted Answer

Primary sludge - Liquid effluent

Vedclass · Answer

(D) In the process of sewage treatment,the primary treatment involves physical removal of particles through filtration and sedimentation.$1$. Filtration removes floating debris.$2$. Sedimentation removes grit and small pebbles.$3$. The solid material that settles down is called primary sludge,while the supernatant liquid is called the effluent.Therefore,option $D$ is mismatched because primary sludge refers to the solid settled material,not the liquid effluent.

Select the mismatched option from the following:

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