Page 437 - Water and wastewater engineering
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11-10   WATER AND WASTEWATER ENGINEERING



















                            (a)                                              (b)


















                            (c)                                              (d)



















                                                      (e)
                            FIGURE 11-4
                            Mechanisms of granular filtration: (a) mechanical screening, (b) sedimentation, (c) flocculation, (d) interception,
                            (e) impaction. Dashed line is particle trajectory. Solid line is water streamline (flow path).
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