Coal washing waste water containing about 3% suspended solids (compris – McqOptions

MCQOPTIONS

1.	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.
Answer» C. in vacuum filter.

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