Problems 6.9
Question 1.2
A 3% v/v suspension is to be settled in a batch settling tank prior to water reuse within a process.
A sample of the suspension settled with a clear interface when placed in a 1000 ml measuring cylinder.
The batch settling curve was as follows:
| Time (mins): | 20 | 40 | 60 | 80 | 100 | 120 | 140 | 160 | 200 | 240 | 260 | 280 |
| Height (cm): | 28 | 24.2 | 20.4 | 16.5 | 13.6 | 11.2 | 9.4 | 8.1 | 6.8 | 5.4 | 4.4 | 4.0 |
Plot the settling curve; i.e. the height of the interface against time on graph paper or on a spreadsheet. When completed, press the ready to move on button.
| Hint | Calculator | Ready to move on |
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