A variety of separation methods for municipal solid waste materials are available, and will become increasingly familiar soon.
Here is our Waste Separation Technology list:
1. Screeners are sifting units that are rotated as powder is fed into their interior.
2. Air classifiers, cones or cyclones use the spiral air flow action or acceleration within a chamber to separate or classify solid particles.
3. Concentrating tables or density separators screen bulk materials or minerals based on the density (specific gravity), size and shape of the particles.
4. Electrostatic separators use preferential ionization or charging of particles to separate conductors from dielectrics (non conductors).
5. Floatation systems separate hydrophobic particulates from hydrophilic particulates by passing fine air bubbles up through a solid- liquid mixture. The fine bubbles attach to and lift or float the hydrophobic particles up where they are collected.
6. Magnetic separators use powerful magnetic fields to separate iron, steel, ferrosilicon or other ferromagnetic materials from non-magnetic bulk materials. The magnetic field may be generated by permanent magnets or electromagnets.
7. Rake, spiral and bowl classifiers use mechanical action to dewater, deslime or separate coarse bulk materials from finer materials or liquids.
8. Trommels are large rotary drums shaped with a grate-like surface with large openings to separate very coarse materials from bulk materials, e.g. coarse plastics from fine aluminium.
9. Water classifiers such as elutriators and classifying hydrocyclones use settling or flow in water or a liquid to separate or classify powdered materials based on particle size or shape.
10. Hydrocyclones are a a type of Static Separator based on centrifugal separation in which a vortex generated with a cono-cylindrical configuration.
This type of equipment is normally found in Labs and in Industrial use – in wheelie bins.