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What is anaerobic digestion PH range?

(a) 6.0 – 8.0

(b) 1.3 – 4.2

(c) 2.5 – 6.5

(d) 7.2 – 10.0

I have been asked this question in an interview.

This is a very interesting question from Problem involved in Biogas Production in section Biomass Energy of Energy Engineering

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