Affiliation:
1. Graduate School of Environment and Energy Engineering, Waseda University, Tokyo 1620041, Japan
2. Environmental Research Institute, Waseda University, Tokyo 1620041, Japan
Abstract
In Japan, mechanical plastic recycling has been widely practiced. In recent years, the chemical recycling method has been gaining interest, especially due to its high-quality products similar to virgin materials. Understanding the environmental impact of both methods from the energy consumption standpoint is crucial so that attempts to preserve plastic resources can be based in the most energy-sustainable way. This research aims to determine the environmental impact of mechanical recycling and two types of chemical recycling technologies (coke oven and gasification) by analyzing their energy usage and environmental loads. The results relating to the electricity consumption and water usage show that mechanical recycling results in a 17% share of global warming potential (GWP), coke oven 51%, and gasification 32%. Although mechanical recycling results in a lower GWP, chemical recycling yields highly valuable products and byproducts that can be reused in its processes, such as steam and industrial water, reducing the overall environmental load. These recovered materials are also potentially useful for other industrial processes in an industrial symbiosis ecosystem.
Subject
Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction
Reference74 articles.
1. OECD (2022). Global Plastics Outlook, OECD Publishing.
2. The COVID-19 Pandemic and Single-Use Plastic Waste in Households: A Preliminary Study;Salvia;Sci. Total Environ.,2021
3. (2023, January 15). Plastic Waste Management Institute (Both in Japanese and English). Available online: https://www.pwmi.or.jp/index.php.
4. Challenges and Strategies for Effective Plastic Waste Management during and Post COVID-19 Pandemic;Vanapalli;Sci. Total Environ.,2021
5. (2023, January 15). IEA Chemicals–Analysis. Available online: https://www.iea.org/reports/chemicals.
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