Determine the % overall removal efficiency for a sedimentation tank with a critical overflow velocity of 2 m3/m2-h containing particles in water with diameter as shown in the following table. Number of particles 30 Diameter, um 0 - 2 2-4 4-8 8 - 15 15 - 20 50 90 110 100 (Given: Pwater = 1000 kg/m3, 4water = 103 kg/m's, Pparticles = 7000 kg/m3, g = 9.81 m/s2) = [Use three digits for velocities, fractions of particles removed and the overall removal efficiency]