Technological Advances in Mechanical Recycling Innovations and Corresponding Impacts on the Circular Economy of Plastics

Abstract

The impact of plastic pollution on the world and its inhabitants is yet to be fully measured. Significant quantities of microplastics and nanoplastics have been found in human organs, and many diseases have been traced to their presence. Even human placentas have been found to contain microplastics. This study examines the recycling landscape, advanced reprocessing techniques, and technical challenges in this industry. It points out the top recyclable types of plastics (such as high-density polyethylene, polyethylene terephthalate, and thermoplastic elastomers) by analyzing their different recycling capacities globally. It highlights the most advisable recycling techniques by identifying those most successful, least environmentally damaging, and easiest. Mechanical recycling is arguably the easiest and most common recycling technique. This study examines mechanical reprocessing technologies for construction materials, composite boards, additive manufacturing, and other applications. It also points out prevailing setbacks of these approaches and analyzes different solutions. Promising recycling processes are suggested for further investigation.

Synthetic Degradable Polyvinyl Alcohol Polymer and Its Blends with Starch and Cellulose—A Comprehensive Overview

“…To avoid the pollution's adverse advertising effects, it is crucial to implement circular economy policies through recycling domestic waste [26]. When waste is polluted with green waste particles, mechanical recycling might only grow to be challenging and complex [27]. In a traditional mechanical recycling process, trash is collected, separated, cleaned, crushed, and pelletized for necessary conversion and reprocessing, which leads to the development of new goods without changing the chemical makeup of the material [28].…”