气候变化领域集成服务门户(CCPortal): Pilot-scale composting test of polylactic acid for social implementation

CCPortal

DOI	10.3390/su13041654
	Pilot-scale composting test of polylactic acid for social implementation
	Kawashima N.; Yagi T.; Kojima K.
发表日期	2021
ISSN	20711050
起始页码	1
结束页码	20
卷号	13 期号:4
英文摘要	The chemical industry and subsequent value chain of plastics are facing significant challenges from the viewpoints of resource conversion and environmental burden. Now is the time to explore the future direction of plastics, which will require an integrated scheme using resource cir-culation, carbon neutrality, and a social system to promote after-use treatment under the concept of a circular economy. Polylactic acid (PLA) should help reduce greenhouse gas (GHG) emissions as a biobased material and contribute to waste management after use due to its biodegradability if managed properly. That is, it will be necessary to treat biodegradable products appropriately in closed systems such as composting facilities after use and recovery. To realize the implementation of fully approved composting facilities in society, simply evaluating biodegradability in the laboratory is insufficient. In this study, a pilot-scale test using PLA under actual composting conditions was con-ducted in accordance with both international standards and domestic evaluation methods. The results not only confirm its biodegradability and disintegration, but also demonstrate that the presence of a biodegradable plastic product has a negligible impact on the composting process. The obtained compost did not adversely affect plant germination or growth, demonstrating its safety and high quality. Such a multifaceted perspective makes this study unique and useful for creating a social framework. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
英文关键词	Biodegradability; Circular economy; Composability; Pilot-scale compost; PLA; Social implementation
scopus关键词	biodegradation; chemical industry; composting; germination; greenhouse gas; organic acid; plastic; safety; waste management
来源期刊	Sustainability (Switzerland)
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177116
作者单位	Mitsui Chemicals, Inc, 1-5-2 Higashi-Shimbashi, Minato-ku, Tokyo, 105-7122, Japan
推荐引用方式 GB/T 7714	Kawashima N.,Yagi T.,Kojima K.. Pilot-scale composting test of polylactic acid for social implementation[J],2021,13(4).
APA	Kawashima N.,Yagi T.,&Kojima K..(2021).Pilot-scale composting test of polylactic acid for social implementation.Sustainability (Switzerland),13(4).
MLA	Kawashima N.,et al."Pilot-scale composting test of polylactic acid for social implementation".Sustainability (Switzerland) 13.4(2021).