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What is other name for biological filtration?

(a) Oxygen cycle

(b) Nitrogen cycle

(c) Carbon cycle

(d) Methane cycle

This question was posed to me in an interview.

Enquiry is from Fundamentals of Filtration in portion Filtration of Food Processing Unit Operations

1 Answer

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Best answer
Right answer is (b) Nitrogen cycle

Easiest explanation: Biological filtration is the action of bacteria breaking down dangerous ammonia, converting them to nitrites, and then the nitrites to the less toxic nitrates. The process is also known as the nitrogen cycle.

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