..:: Biomass Energy on Energy Engineering related Questions and Answers

Question : In what PH range does anaerobic digestion occurs at best?
1. 6.8 - 8.0
2. 0 – 5.0
3. 2.3 - 4.5
4. 3.5 – 7.2
Answer : 1 - 6.8 - 8.0

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