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How many types of trickling filters are used in sewage treatment?

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in Environmental Engineering by (81.4k points)
How many types of trickling filters are used in sewage treatment?

(a) 6

(b) 5

(c) 3

(d) 2

I have been asked this question in unit test.

I'm obligated to ask this question of Types of Sewage Filter topic in chapter Sewage Filtration and Activated Sludge Process of Environmental Engineering

1 Answer

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Best answer
Right choice is (d) 2

The explanation is: The trickling filters are divided into conventional and high rate trickling filters.

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