Abstract
Automated sorting for plastic recyclables has been seen as the way forward in the plastic recycling industry. Automated sorting provides significant improvements in terms of efficiency and consistency in the sorting process. In the case of macro sorting, which is the most common type of automated sorting, efficiency is determined by the mechanical details of the material handling system as well as the detection system. This paper provides a review on the state of-the-art technologies that have been deployed by some of the recycling facilities abroad. The design and development of a cost effective prototype automated system for sorting plastic recyclables is proposed and discussed.
Highlights
Plastic materials are generally light, able to contain most consumable and household liquids and as such, are one of the highly utilized materials for domestic packaging
They are among the type of plastic materials that have numerous recycled applications
For plastic materials, sorting is normally based on the resin categories. This is important due to the fact that for plastic materials to be recycled into useable resins, a pure stream of resin must be obtained
Summary
Plastic materials are generally light, able to contain most consumable and household liquids and as such, are one of the highly utilized materials for domestic packaging. They are among the type of plastic materials that have numerous recycled applications. For plastic materials, sorting is normally based on the resin categories. This is important due to the fact that for plastic materials to be recycled into useable resins, a pure stream of resin must be obtained. Inefficient sorting that leads to a combination of different types of resins for example, PVC and PET can result in the release of hydrochloric gases[1]
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