For satisfactory working of a sludge digestion unit, the pH range of digested sludge should be maintained as
A. 4.5 to 6.0
B. 6.5 to 8.0
C. 8.5 to 10.0
D. 10.5 to 12.0
Answer:B
For satisfactory working of a sludge digestion unit, the pH range of digested sludge should be maintained as
A. 4.5 to 6.0 B. 6.5 to 8.0 C. 8.5 to 10.0 D. 10.5 to 12.0