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Which of the activated sludge system types is not used in slaughter house wastewater treatment?

(a) Cascade

(b) Single

(c) Two stage

(d) Parallel

This question was posed to me in a national level competition.

My question is taken from Wastewater Treatment of Food Processing Industries in chapter Wastewater Treatment of Food Processing Industries of Environmental Biotechnology

1 Answer

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Best answer
The correct choice is (d) Parallel

Easy explanation: The activated sludge system types that is used in slaughter house waste water treatment includes various activated sludge systems like Cascade, Single, two stage systems, whereas Parallel sludge system is not used in slaughter house waste water treatment.

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