Return Activated Sludge (RAS) is typically pumped from the:

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Environment & Ecology · Environmental Science

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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secondary clarifier to aeration tank to reintroduce active microorganisms

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Answer 1

primary clarifier to grit chamber to remove metals

Answer 2

secondary clarifier to effluent chamber to improve settling

Answer 3

aeration tank to primary clarifier to control odour

Answer 4

secondary clarifier to aeration tank to reintroduce active microorganisms

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