Civil Engineering > GATE 2026 SET-2 > Sludge Treatment
One-third of the solid matter in a sludge containing 90 % water is composed of fixed mineral solids with specific gravity 2.5, and two-third is composed of volatile solids with specific gravity 1.0.
Specific gravity of all solids lies between
A
1.2 and 1.3
B
1.5 and 1.6
C
1.7 and 1.8
D
2.0 and 2.1

Correct : a

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sludge composition solid matter in sludge GATE Civil Engineering 2026 sludge specific gravity civil engineering gate fixed mineral solids volatile solids sludge composition analysis

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