Q. The moisture content of sludge is reduced from 90% to 80% in a sludge digestion tank. Thepercentage decrease in the volume of sludge, is (Solved)
1. 25 % (B) (C) (D)
2. 50 %
3. 10 %
4. 5 %
- b. 50 %
1. 25 % (B) (C) (D)
2. 50 %
3. 10 %
4. 5 %