Technical description and performance evaluation of different packaging plastic waste management's systems in a circular economy perspective
Technical description and performance evaluation of different packaging plastic waste management's systems in a circular economy perspective
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DOI：
10.1016/j.scitotenv.2020.137233
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发表时间：
2020-05-20
影响因子：
9.8
通讯作者：
Mastellone, Maria Laura
中科院分区：
文献类型：
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作者：
Mastellone, Maria Laura
近年来，塑料垃圾处理的重要性日益提高，在全球范围内正面临着严峻的形势，因此需要通过避免对塑料材料做出无意义的政策反应来实践循环经济的标准。塑料材料的世界包括我们生活中所有领域的广泛商品：包装，建筑，生物医药等。塑料垃圾处理的答案是建立一个工业网络，其特点是可靠、灵活、可持续、在工业周期中具有实用性，并能够向市场提供有用的产品。包括循环利用和能源回收在内的传统过程只满足了这些条件的一部分，需要根据它们对循环经济的实际影响进行评估，例如所获得的产品在人类圈生命周期中的使用情况、过程本身产生的负担等。从真正的循环经济角度来看，与传统工艺相比，在可能更具可持续性的工艺中，讨论和评估了那些基于塑料获得的产品的热化学开发的工艺。结果表明，将昂贵且无法解决的塑料废物管理系统转变为具有内在经济可持续性的工业网络是可能的，并且总体而言，在塑料经济链中具有明确的作用。结果表明，该系统与石油、汽油、合成气、天然气等石化产品的生产相结合。，大力提高整个废物系统的经济性能，允许更大程度地节省不可再生资源，减少有限的温室负担，在市场上释放有价值的产品而不是劣质材料，并最大限度地减少注定要填埋的废物。(C) 2020 Elsevier B.V.版权所有
The plastic waste disposal strongly raised in importance in the recent past and it is approaching a critical situation worldwide, so requiring putting in practice the criteria of circular economy by avoiding meaningless policy responses against the plastic materials. The world of plastic materials includes a wide range of goods in all the sectors of our life: packaging, construction, biomedicals, etc. The answer to the plastic waste disposal is build an industrial network characterized by reliability, flexibility, sustainability, utility in the industrial cycle and ability to provide useful products to the market. The traditional processes including recycling and energy recovery fulfil only a part of these conditions and need to be assessed in correlation to their real effect on the circular economy such as the uses of the obtained products in the anthroposphere's life cycle, the burdens generated by the processes itself, etc. Among the possible processes that can be more sustainable if compared with the traditional ones, in a real circular economy perspective, those based on thermochemical exploitation of products obtained by plastics are discussed and assessed. The results show that it is possible to transform an expensive and nonresolving plastic waste management system in an industrial network having an intrinsic economic sustainability and, overall, a well-defined role in the economic chain of plastics. The results show that an integration between the present system with the production of petrochemical products, induding oiligasoline/syngas/..., strongly improve the economic performance of the overall waste system, allowing a larger savings of not-renewable resources, a limited greenhouse burden, a release in the market of valuable products instead of poor quality materials and the minimization of waste destined to be landfilled. (C) 2020 Elsevier B.V. All rights reserved.