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**Purifier working and is there any equation for it?**

Principle: A purifier works on the

And it can't separate salt out of seawater. Why? Comment down.**difference between**the**specific gravity**of**two different liquids/****Stoke’s law**High Centrifugal Forces are developed and Heavier particles move towards the outer side of the Bowl

### The Force of separation Equation:

ω = Angular velocity

r = Effective radius

ρw = density of water

ρo = density of oil

Fs= seperation force

The Force of separation can be increased if we keep this in a rotating cylinder. This is called a centrifuge. Then the "g" changes to ω² r

**Fs = (pi/6) x D3 (ρw-ρo) * ω² r**

**Separation just by centrifugal force.**

### Settling Velocity Equation:

PIC: Equation showing Settling Velocity |

where

**v**= Settling velocity (m/s)

**rω²**= Acceleration in centrifugal Feild (m/s²)

### d = Diameter of the particle (m)

### ρp = Density of Particle (Kg/m

³)### ρl = density of Liquid medium (Kg/m

³)###
**μ**

= viscosity of the medium kg/(m.s)### A Must Watch Video For Beginners:

### Further reference :

**Note:**If you are a trainee then watching all the youtube videos about purifiers might confuse you initially. Alcap, clarifier, purifier, hi-dens, Alfa Laval, and some videos may include different desludging mechanisms each video is different.

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