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A settling tank in a water treatment plant is designed for a surface overflow rate of 30 m3/day.m2. Assume specific gravity of sediment particles = 2.65, density of water (ρ) = 1000 kg/m3, dynamic viscosity of water (μ) = 0.001 N.s/m2, and Stokes' law is valid. The approximate minimum size of particles that would be completely removed is:
Options:
A .  0.01mm
B .  0.02mm
C .  0.03mm
D .  0.04mm
Answer: Option B


-NA-



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