Exercise 1. Estimate the terminal velocity of a particle 1mm in diameter with a density of 5000kg/m^3 settling in an unhindered environment of water at room temperature. 2. A particle settles freely...

Extracted text: Exercise 1. Estimate the terminal velocity of a particle 1mm in diameter with a density of 5000kg/m^3 settling in an unhindered environment of water at room temperature. 2. A particle settles freely without turbulence through a cylindrical thickener having a diameter of 15m and a tank volume 3181m^3 operating at a level of 80%. The feed slurry with an average particle diameter of 0.02mm and density of 1500kg/m^3 settles through water. The average weather conditions that the thickener experiences is 24degC whilst at any instant the sediment bed has a height of 1m. Determine how long (tmin) it will take for a particle to settle to the surface of the bed. Confirm your assumptions by showing in which region the flow exits. STATE ALL ASSUMPTIONS. Which thickener listed in the notes is most likely used for this application and why. Assuming plant production rates increase, how will this affect settling and how can the consequences be mitigated in current example problem? B M