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Sedimentation (:fire:Gravitational sedimentation:fire: (Principle :!!:…

- - - - To remove sewage from clean water
    - - To separate oil and water
    - - By detecting any material containing elements with Z > 12
- - - - van der Waal's forces make them drift toward each other and become floc.
    - - metallic salts
      - polymers.
- - - - ω2R
        
        R= distance between particle and center of rotation
        
        ω=angular velocity
    - - Gravity
        
        9.8 m/s2
- - - - A very slow rate sedimentation is might due to ;
        
        The density of particles is close to that liquid,
        
        Diameter is small
        
        Viscosity is ⬆️
      - 🏃🏻‍♀️Faster sedimentation*🏃🏻‍♂️
        
        Replacing gravitational acceleration ⇢ the acceleration generated by a rotating centrifuge.
- - - - They become floc and will settle out of the water.
    - - sufficient density difference exists between the suspended matter and the liquid.