Which of the following is incorrect about aerobic digestion in the sludge digestion process?
(a) It has a low capital cost
(b) It is easier to manage.
(c) It has high residual energy
(d) It decreases the BOD
The question was asked during an interview.
The question is from Digestion of Sludge, Sludge Digestion Tank in division Sewage Filtration and Activated Sludge Process of Environmental Engineering