A silt particle with a density of 2500 kg/m3 and terminal settling velocity (vs) of 1.9 m/hr is entering a rectangular sedimentation basin which has a depth (H) of 4 m. The entire flow rate of 21000 m3/day has to flow through the basin. The temperature of operation is 20C  and the density of water at this temperature is 998 kg/m3 and the viscosity is 0.001 kg m-1 s-1. Note: Volume of a rectangular basin = L x W x H.1) What is the size of the particle?2) What will be the volume of the rectangular sedimentation basin needed to remove the particle from the water, assuming 100% removal?

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