再生 PET 纤维板在建筑保温中的应用：更环保生产的环境影响和改进潜力评估。

Recycled-PET fibre based panels for building thermal insulation: environmental impact and improvement potential assessment for a greener production.

机构信息

Department of Industrial Engineering, University of Catania, Viale A. Doria 6, 95125 Catania, Italy.

Department of Quality and Operations Management, Faculty of Engineering and the Built Environment, University of Johannesburg, APB Campus, P. O. Box 524, Auckland Park 2006, Johannesburg, South Africa.

出版信息

Sci Total Environ. 2014 Sep 15;493:914-29. doi: 10.1016/j.scitotenv.2014.06.022. Epub 2014 Jul 6.

DOI:10.1016/j.scitotenv.2014.06.022

PMID:25006757

Abstract

A screening of Life Cycle Assessment for the evaluation of the damage arising from the production of 1 kg of recycled Polyethylene Terephthalate (RPET) fibre-based panel for building heat insulation was carried out according to the ISO 14040:2006 and 14044:2006. All data used were collected on site based on observations during site visits, review of documents and interviews with technical personnel and management. These data were processed by using SimaPro 7.3.3, accessing the Ecoinvent v.2.2 database and using the Impact 2002+ method. The study showed damage to be equal to 0.000299 points mostly due to the: 1) PET thermo-bonding fibre supply from China by means of a freight-equipped intercontinental aircraft; 2) production of bottle-grade granulate PET; 3) medium voltage electricity consumption during the manufacturing of RPET fibre panel. It was also highlighted that there were environmental benefits due to recycling through mainly avoiding significant emissions and reduced resource consumption. An improvement assessment was carried out to find solutions aimed at reducing the damage coming from the most impacting phases. Furthermore, the environmental impacts due to the production of the analysed RPET fibre-based panel were compared to other materials with the same insulating function, such as polystyrene foam, rock wool and cork slab. Finally, the environmental benefits of the recycling of PET bottles for flake production were highlighted compared to other treatment scenarios such as landfill and municipal incineration.

摘要

采用生命周期评估方法，对 1 公斤回收聚对苯二甲酸乙二醇酯（RPET）纤维基建筑保温板生产过程中产生的危害进行了筛选，评估依据为 ISO 14040:2006 和 14044:2006 标准。所有使用的数据均根据现场考察期间的观察、文件审查以及与技术人员和管理人员的访谈进行现场采集。采用 SimaPro 7.3.3 软件对这些数据进行处理，访问 Ecoinvent v.2.2 数据库，并使用 Impact 2002+方法。研究表明，主要是由于以下三个方面的原因，造成危害值为 0.000299 分：1）采用配备货运设备的洲际飞机从中国供应 PET 热熔纤维；2）生产瓶级 PET 颗粒；3）制造 RPET 纤维板时使用中压电力。研究还强调了通过回收利用可以带来环境效益，主要是因为避免了大量排放和资源消耗。为了降低受影响最大的阶段带来的危害，进行了改进评估以寻找解决方案。此外，还比较了分析的 RPET 纤维板的生产与具有相同隔热功能的其他材料（如聚苯乙烯泡沫、岩棉和软木片）的环境影响。最后，与填埋和城市焚烧等其他处理方案相比，突出了回收 PET 瓶生产薄片的环境效益。