Q. 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

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✅ Correct Answer: (B) In sedimentation tanks equipped with mechanical scrapper

Published by Nisha Gupta ⭐ 2.32K Points at 14-May-2023 07:30 pm in Environmental Engineering

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