A rectangular sedimentation tank is designed with a depth of 3.5 m and a detention time of 1 h. Is the design suffcient to achieve complete removal of particles with a diameter of 0.01 mm? Specifc gravity of the particles is 2.65. The fow rate and temperature of water are 10,000 m3/d and 20°C, respectively. At 20°C, density of water is 998 kg/m3 and dynamic viscosity of water is 10–3 kg/m·s. State any assumptions you make to calculate your results.

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