5855Chemical EngineeringMedium
Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal?
AIn vacuum filter
BIn clarifiers
CBy chemical coagulation
DIn sedimentation tanks equipped with mechanical scrapper
Correct answer
D. In sedimentation tanks equipped with mechanical scrapper
Explanation
The correct answer is In sedimentation tanks equipped with mechanical scrapper.