硬质聚对苯二甲酸乙二醇酯包装废弃物:奥地利废弃物组成及其回收潜力的调查

IF 3.6 Q2 ENVIRONMENTAL SCIENCES

Resources Pub Date : 2023-10-31 DOI:10.3390/resources12110128

Viktoria Helene Gabriel, Andreas Schaffernak, Manuel Pfitzner, Johann Fellner, Manfred Tacker, Silvia Apprich

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引用次数: 0

摘要

从法律和废物管理的角度来看，显然需要增加塑料包装废物的回收利用，因此，需要根据其回收潜力对进一步的废物流进行详细调查。聚对苯二甲酸乙二醇酯(PET) PW已经是闭环可回收的(瓶对瓶回收);然而，其他刚性PET PW主要是热回收。关于硬质PET包装废弃物的明确定量和定性数据是有限的。因此，本研究通过人工分类分析，调查奥地利单独废物收集和混合PET分类流中所含硬质PET包装废物的组成和包装特征。此外，预测了废物量，并根据新的欧洲回收率报告格式推断了回收潜力。结果表明，大约11%的单独收集代表刚性PET包装废物。大多数PW来自食品包装，是透明的。含有超过包装总重量1%的残留物可能会对分选性产生负面影响。分拣阶段适用的净数量指标(ALR)为0.888。预计到2020年，刚性PET PW的体积将达到26 - 36kt，高质量回收率为25%，这对奥地利50%的PPW回收目标贡献了2.6%。

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Rigid Polyethylene Terephthalate Packaging Waste: An Investigation of Waste Composition and Its Recycling Potential in Austria

The need for increased recycling of plastic packaging waste (PPW) is apparent from a legal and waste management perspective and, therefore, further waste streams need to be investigated in detail in terms of their recycling potential. Polyethylene terephthalate (PET) PW is already closed-loop recyclable (bottle-to-bottle recycling); however, other rigid PET PW is mainly thermally recovered. Explicit quantitative and qualitative data on rigid PET packaging waste are limited. Therefore, this study investigates the composition and packaging characteristics of rigid PET packaging waste contained in separate waste collection as well as in the mixed PET sorting stream in Austria by conducting a manual sorting analysis. Furthermore, the waste volume is projected, and the recycling potential is extrapolated according to new European recycling rate reporting formats. The results show that approximately 11% of separate collection represents rigid PET packaging waste. Most PW derives from food packaging and is transparent. Contained residues with more than 1% of the total packaging weight might negatively impact the sortability. The applicable net quantity indicator (ALR) amounts to 0.888 at the stage of sorting. The volume of rigid PET PW is extrapolated to 26–36 kt in 2020 with a high-quality recycling rate of 25%, which contributes 2.6% to the Austrian PPW recycling target of 50%.

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来源期刊

Resources Environmental Science-Nature and Landscape Conservation

CiteScore

7.20

自引率

6.10%

发文量

审稿时长

11 weeks

期刊介绍： Resources (ISSN 2079-9276) is an international, scholarly open access journal on the topic of natural resources. It publishes reviews, regular research papers, communications and short notes, and there is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental and methodical details must be provided so that the results can be reproduced. There are, in addition, unique features of this journal: manuscripts regarding research proposals and research ideas will be particularly welcomed, electronic files or software regarding the full details of the calculation and experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material. Subject Areas: natural resources, water resources, mineral resources, energy resources, land resources, plant and animal resources, genetic resources, ecology resources, resource management and policy, resources conservation and recycling.