Journal
WASTE MANAGEMENT
Volume 126, Issue -, Pages 309-322Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2021.03.025
Keywords
Tires; Circular economy; Sustainability; Recycle; End-of-life tire management; Sustainable mobility
Categories
Funding
- State Research Agency of Spain (AEI) [PID2019-107501RB-I00, RYC-201722837]
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This study explores the evolution from 3Rs to 7Rs concepts, highlighting the importance of transitioning towards a circular economy model and the significance of circular use of tire materials. By examining different scientific approaches and industrial implementations, evaluating the strengths and weaknesses of each strategy, substantial contributions have been made in advancing sustainable mobility.
Until nowadays, the concept of the 3Rs (Reduce, Reuse, Recycle) has tried to develop responsible consumption habits. Nonetheless, the rise of ecological thinking has generated the appearance of four new Rs in addition to these basic 3Rs; the currently 7Rs (Reduce, Reuse, Recycle, Redesign, Renew, Repair and Recover) which refer to the actions necessary to achieve the change towards a circular economy (CE) model. This model aims at extending the lifetime of the resources through their rational and efficient use to generate value repeatedly, reducing costs and waste. In this review, we examine the route followed by tires from the CE perspective, analyzing end-of-life strategies that aim to improve the circular flow of tire rubber materials. We discuss the most relevant studies on the 7Rs concepts applied to tires, comparing different scientific approaches, as well as their industrial and commercial implementation. We also illustrate the drawbacks and feasibility of each of the R-hierarchy strategies. From the early stages of production to the post-consumption step, the path that tires trail within this CE model evidences the commitment and efforts towards the development of effective management schemes for achieving a real sustainable mobility. (c) 2021 Elsevier Ltd. All rights reserved.
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