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Anaerobic digestion is generally applied to BOD wastes above ________ ppm.

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in Hazardous Waste Management by (63.0k points)
Anaerobic digestion is generally applied to BOD wastes above ________ ppm.

(a) 3000

(b) 6000

(c) 9000

(d) 12000

The question was posed to me in an interview for internship.

Question is taken from Biological Treatment in division Chemical, Physical & Biological Treatment of Hazardous Waste Management

1 Answer

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by (424k points)
The correct answer is (b) 6000

For explanation: To make the process economical, sufficient methane has to be generated to maintain temperature, therefore anaerobic digestion is generally applied to BOD wastes above 6000 ppm.

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