Question

Which of the following statement is not correct? a. During fermentation, when huge amount of organic acids is produced, the pH in the digester drops below 5. 
  b. At pH below 5, the methane formation is accelerated.   
c. Loading rate of around 0.2 kg/m3 of digester capacity is recommended. 
d. The retention time for the biogas digester ranges between from 35 days to 50 days.​

Answer 1

Answer:

I think all are correct answer and very interestin

Answer 2

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Correct answer ( B ) . . .