Page 18 - Water Pollution Management - Silty Water Treatment - Preventing Discharge
P. 18

Settling velocity - a function of particle size









                   Material:                         SAND                                SILT                            CLAY

                   Typical diameter:                (2mm)                            (63µm)                              (2µm)











                                                                                                                     0.013 m/hr






                                                                                    11 m/hr









                                                                                            Settlement area proportional to settling velocity


                                                                                            Sand to clay variation of 100,000(!)


                                                 1000 m/hr





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