A treatment plant has a horizontal flow sedimentation tank with a depth of 4m, width of 6m, length of 36m, and process flow rate of 450m3/h. What removal percentage should be expected for particles that have settling velocities of 1.0 m/h and 2.5 m/h? What is the minimum size of particles that would be completely removed? Assume the particle density is 2,650 kg/m3. The water temp is 10 degree celcuis