Multiple choice

A biogas plant works to its maximum capacity when

  1. Conditions are aerobic and temperature 40 deg C

  2. Conditions are anaerobic and temperature 40 deg C

  3. Conditions are aerobic and sewage is supplied

  4. Conditions are anaerobic and sewage is supplies
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Biogas production is an anaerobic process that is most efficient at thermophilic temperatures, typically around 40 degrees Celsius.

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