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

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          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.

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          Author and article information

          Journal
          Sci Total Environ
          The Science of the total environment
          Elsevier BV
          1879-1026
          0048-9697
          Sep 15 2014
          : 493
          Affiliations
          [1 ] Department of Industrial Engineering, University of Catania, Viale A. Doria 6, 95125 Catania, Italy. Electronic address: ing.carloingrao@gmail.com.
          [2 ] 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.
          [3 ] Department of Economics, University of Foggia, Via Romolo Caggese 1, 71121 Foggia, Italy.
          [4 ] Department of Industrial Engineering, University of Catania, Viale A. Doria 6, 95125 Catania, Italy.
          Article
          S0048-9697(14)00877-8
          10.1016/j.scitotenv.2014.06.022
          25006757
          6365512f-5ecf-41eb-8a78-426a2e1832cf
          Copyright © 2014 Elsevier B.V. All rights reserved.
          History

          Buildings,Environmental sustainability,Life Cycle Assessment,RPET-fibre,Thermal insulation,Transportation

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