Different Types Of Filters Used In OWS

 Type of Filters used in OWS 

    
   Coalescence type:

1.    Hydrophilic material i.e. glass wool.
2.    Absorbs water rather than oil.
3.    Has to be renewed after certain periods.

    Absorption type:

1.   Oleophilic material
2.   Absorbs oil rather than water.
3.   Frequent replacement is not required.

High rate of separation is favored by:

       > Large size of oil globule.

       > Elevated temperature of the system ( i.e. lowers viscosity of oil, density of oil-water but oil is higher).

       > Residence time.

       > Avoidance of turbulence or agitation.

       > Laminar or stream line flow.

       > Low viscosity of oil globule.