Recycling plastics
It involves the following major operations:
o Granulation
o Washing
o Drying
o Extrusion and pelletizing
o Packing
Alternative Plastic recycling technology:
Mechanical recycling
Mechanical recycling of plastics refers to processes which involve the melting, shredding or granulation of waste plastics. Plastics must be sorted prior to mechanical recycling. Technology is being introduced to sort plastics automatically, using various techniques such as X-ray fluorescence, infrared and near infrared spectroscopy, electrostatics and flotation. Following sorting, the plastic is either melted down directly and molded into a new shape, or melted down after being shredded into flakes and then processed into granules called re-granulate.
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