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in Environmental Engineering by (81.4k points)
In which type of filter, the filtration is done in two opposite directions at the same time?

(a) Dual media filter

(b) Mixed media filter

(c) Bi-flow filter

(d) Rapid sand filter

I have been asked this question in an online interview.

Enquiry is from Various Other Filters topic in division Filtration of Environmental Engineering

1 Answer

+2 votes
by (693k points)
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Best answer
Correct choice is (c) Bi-flow filter

For explanation: In Bi-flow filter, the filtration is done in the opposite direction at the same time. It is divided into single media and dual media bi-flow filter.

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