Industrial metabolism of PVC in China: A dynamic material flow analysis |
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| Institution: | 1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640, China;2. University of Chinese Academy of Sciences, Beijing, 100049, China;3. University of Science and Technology of China, Hefei, 230026, China;4. CAS Key Laboratory of Renewable Energy, Guangzhou, 510640, China;5. Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640, China;6. SDU Life Cycle Engineering, Department of Green Technology, University of Southern Denmark, Odense, 5230, Denmark;7. Dalian National Laboratory for Clean Energy, Dalian, 116023, China;8. Guangdong International Engineering Consultant Corporation (GDIECC), Guangzhou, 510060, China;9. Energy Development Research Institute, China Southern Grid (CSG), Guangzhou, 510663, China;1. Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan;2. Research Institute of Science for Safety and Sustainability (RISS), National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan;1. Elisava, Barcelona School of Design and Engineering (UVic-UCC);2. Centre Català del Plàstic, Universidad Politécnica de Cataluña Barcelona Tech (EEBE-UPC), C/Colom, 114, Terrassa 08222, Spain;3. Centre for Environmental Policy, Imperial College London, The Weeks Building, 16-18 Princes Gardens, London SW7 1NE, United Kingdom |
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| Abstract: | In China, the rapid development of the polyvinylchloride (PVC) industry will inevitably lead to various environmental problems. This paper studies the PVC metabolism further by (1) constructing dynamic models based on material flow analysis (MFA), (2) introducing calculation on detailed lifetime distribution of different types of products and recycling, and (3) obtaining the performances of waste emissions and accumulation as a function of raw material input and time. Based on system evolution theory and population development models, the developing trend of the PVC industry is studied, and annual consumptions in future years are predicted. The annual emission and accumulation after metabolism can be calculated by tracking the amount of raw material input, existing form and process flow for a single year (2003), as well as over a longer period (from 1958 to 2048) in China. Analysis indicates that over 0.6 billion tons of PVC waste will have accumulated in the environment by the end of 2050. In this scenario analysis, the effects of product structure, lifetime distribution, mechanical recycling, chemical recycling and incineration on waste output are all taken into consideration. The product metabolism process can be decelerated by changing these factors appropriately. However, mechanical recycling and chemical recycling are the most effective solutions. |
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