28. Based on the sedimentation of limestone particles, plot a sedimentation curve and set. What is the range of particle sizes?
Settling time, s 30 60 120 240 480 720 1000
Amount of settled suspension, mg 8 11 15 21 29 34 39
Experimental conditions: settling height - 15 * 10-2, density of the dispersed phase - 2800 kg/m3; the density of the dispersion medium (water) is 1000 kg/m3, the viscosity of the medium is 1*10-3.

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