If the settling velocity of a particle is 0.30 cm/s and the overflow rate of a horizontal flow clarifier is 0.25 cm/s.
(a) What percent of the particles are retained in the clarifier?
(b) If the flow rate is doubled, what percent removal of particles would be expected?
(c) If a 1.0-m^3/s flow water treatment plant uses 10 sedimentation basins with an overflow rate of 15 m3/d*m^2, what should be the surface area (m^2) of each tank?