An electrostatic separator uses electrostatic forces to selectively sort solid particles based on their charge. It works by inducing a charge on particles in a gas stream using discharge electrodes, then collecting the charged particles on oppositely charged collecting electrodes. Key components include discharge electrodes, collecting electrodes, a rapping system to remove collected particles, and hoppers to contain the separated particles. Electrostatic separators can separate mixtures of different metal, plastic, or metal and plastic particles, and operate either dry or wet.

1. By
Gulshad Ahmad
Department of Chemical & Polymer Engineering
University of Engineering & Technology Lahore (FSD Campus)

2.  It is defined as the selective sorting of solid
species by means of utilizing forces acting on
charged of polarized body in an electrical
field.
 Selective sorting: on the basis of charge
 Solid species: smoke, dust, oil
 Utilizing forces: electrostatic forces.
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3.  An electrostatic separators (ESS) or
electrostatic precipitator (ESP) is a
particulate collection device that removes
particles from a flowing gas such as air using
the force of an induced electrostatic charge.
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5.  Discharge electrode
 Collecting electrodes
 Rapping system
 Hoppers
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6.  Ionization
 Migration particles
 Collection particles
 Charge dissipation
 Particle dislodging
 Particle removal
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7.  Role type electrostatic separators
 Plate type electrostatic separators
 Free fall electrostatic separators
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8.  Separate the mixtures of metal/plastic
particles
 Example: Copper/PVC
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9.  Separate the mixtures of metal/metal
particles
 Example: Copper/lead
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10.  Separate the mixtures of plastic/plastic
particles
 Example: PE/PVC
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11.  Dry Electrostatic precipitator
 Wet Electrostatic precipitator
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12.  Use dry air for
removing the
precipitated
material on the
electrodes
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13.  Uses water flushing to remove the sticky
particles from the collecting surface area.
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