Demonstration of Chemical Recycling for Plastic Waste from Construction Sites

Six companies, including Kajima Corporation, have completed a demonstration project for the chemical recycling of plastic waste from construction sites. They established a supply chain to convert waste plastic into oil for reuse, confirming a 15% reduction in CO2 emissions. They also evaluated economic viability, demonstrating the potential for sustainable social implementation.
techNQ 51/100出典:PR Times

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  • 📰 Published: June 2, 2026 at 23:00
  • 🔍 Collected: June 2, 2026 at 14:20
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Six companies—Kajima Corporation, Takenaka Corporation, Nippon Express Co., Ltd. (a group company of NIPPON EXPRESS HOLDINGS, INC.), Refinverse Group Inc., Aozora Co., Ltd., and Mitsubishi Chemical Corporation—have completed the 'Demonstration Project for Chemical Recycling of Plastic Waste from Construction Sites,' which was selected as a project under the Ministry of the Environment's 'FY2025 Support Project for Forming Advanced Social Implementation Models for Plastic Resource Circulation.' Currently, most plastic waste from construction sites is disposed of through thermal recovery, incineration, or landfill, making it a challenge to improve the recycling rate. In this project, the six companies built a reverse supply chain that applies chemical recycling technology to convert waste plastic into oil for reuse. They evaluated environmental and economic performance and confirmed that it is possible to improve the recycling rate of construction plastic waste and reduce CO2 emissions.

FAQ

Why is recycling construction plastic waste difficult?

It contains many mixtures, requiring cost and technology for sorting and processing into suitable feedstock for oil conversion.