Particle Technology

hindered settling

Problems 6.9

Question 1.7


Height of the settling interface against time graph. Batch settling curve
OK, we know that the vessel is too short, but we can now consider making it taller and, therefore, the diameter less. To do this we will follow a characteristic up from the origin on the settling curve above, but first we need to decide which one to use.

At the end of the settlement period, i.e. on day 4 after pumping the supernatant but before pumping the sediment out, the volume of sediment is (m3):

a) 90
b) 527
c) 437
d) 1351

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