Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal (A) By chemical coagulation (B) In sedimentation tanks equipped with mechanical scrapper (C) In vacuum filter (D) In clarifiers

Coal washing waste water containing about 3% suspended solids
(comprising of clay, slate, stone etc.) is treated for solid particles removal
(A) By chemical coagulation
(B) In sedimentation tanks equipped with mechanical scrapper
(C) In vacuum filter
(D) In clarifiers
by

1 Answer

Answer :

(B) In sedimentation tanks equipped with mechanical scrapper
by

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