Page 359 - Chemical Process Equipment - Selection and Design
P. 359

322  SOLID-LIQUID  SEPARATION

                                             FILTRATION  LEAF  TEST  DATA  SHEET  - VACUUM  AND  PRESSURE
                     Capany                       Mat'l as Received:   Date              Test No.
                     Addrrss                         Salids:        %                    Date T-rtcd
                                                       Analysis                          *Y
                                                     Liquid:        5                    Location
                     Filter  Type - Size      Ft.2     Analysis
                                Ccof
                     Used  Shim:   No   Yes          Precot Forming Liquid                   Temp.          OFPC
































                     Figure 11.8. A filtration leaf test data sheet (Dahlstrom and Siluerblatt,  1977).










                                                         Backwash











                                                                            -
                                                                          OUTLET




                                            (a)                                                 (b)
                     Figure 11.9. Deep bed sand filters for removal of small contents of solids from large quantities of liquids. Accumulations from the
                     top and within the bed are removed by intermittent backwashing. Charcoal may be used instead of sand for clarifying organic
                     liquids. (a) Gravity operation. (b) Pressure operation.
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