Question

The anaerobic digester tanks volume is upto?

(a) 2,000 m^3

(b) 12,000 m^3

(c) 24,000 m^3

(d) 200 m^3

This question was addressed to me by my school principal while I was bunking the class.

This interesting question is from Treatment Processes topic in chapter Effluent Treatment of Bioprocess Engineering

Answer 1

The correct choice is (b) 12,000 m^3

To explain: The anaerobic digesters tanks volume is upto 12,000 m^3 and equipped with heating coils for accurate temperature control normally in the mesophilic range (25°-38°, usually 28°-32° in anaerobic digestion).