Decision-based territorial life cycle assessment for the management of cement concrete demolition waste
| Autor: | Nicolas Antheaume, Marjan Mousavi, Anne Ventura |
|---|---|
| Přispěvatelé: | Institut de Recherche en Génie Civil et Mécanique (GeM), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-École Centrale de Nantes (ECN)-Centre National de la Recherche Scientifique (CNRS), Granulats et Procédés d'Elaboration des Matériaux (MAST-GPEM ), Université Gustave Eiffel, Laboratoire d'économie et de management de Nantes Atlantique (LEMNA), Institut d'Économie et de Management de Nantes - Institut d'Administration des Entreprises - Nantes (IEMN-IAE Nantes), Université de Nantes (UN)-Université de Nantes (UN)-FR 3473 Institut universitaire Mer et Littoral (IUML), Le Mans Université (UM)-Université d'Angers (UA)-Université de Nantes (UN)-École Centrale de Nantes (ECN)-Université de Bretagne Sud (UBS)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Le Mans Université (UM)-Université d'Angers (UA)-Université de Nantes (UN)-École Centrale de Nantes (ECN)-Université de Bretagne Sud (UBS)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2020 |
| Předmět: |
Environmental Engineering
RECYCLING geographical downscale 020209 energy media_common.quotation_subject ANALYSE DU CYCLE DE VIE 02 engineering and technology recycling 010501 environmental sciences CYCLE DE VIE 01 natural sciences 12. Responsible consumption Waste Management URBAN METABOLISM RECYCLAGE DES MATERIAUX Teknik och teknologier 11. Sustainability 0202 electrical engineering electronic engineering information engineering Animals Quality (business) Life-cycle assessment 0105 earth and related environmental sciences media_common Urban metabolism Life Cycle Stages Construction Materials MATERIAL FLOW ANALYSIS business.industry Material flow analysis Scale (chemistry) Environmental resource management Land-use planning Pollution Product (business) [SPI.GCIV]Engineering Sciences [physics]/Civil Engineering material flow analysis Demolition waste [SDE]Environmental Sciences Engineering and Technology Environmental science GEOGRAPHICAL DOWNSCALE France business |
| Zdroj: | Waste Management and Research Waste Management and Research, SAGE Publications, 2020, pp.1405-1419. ⟨10.1177/0734242X20965676⟩ |
| ISSN: | 1096-3669 0734-242X |
| DOI: | 10.1177/0734242x20965676 |
| Popis: | Existing territorial life cycle assessments (LCAs) consider all activities in a given geographical area, defined as the foreground system, but cannot lead to operational decisions. In product scale LCA, the foreground system is defined as the part of the system directly controlled by an actor and is thus more adapted to compare possible scenarios within a decision perimeter. The present paper uses that concept applied to a geographical area. The developed method consists of five steps: (a) definition of the foreground material flow analysis (MFA) or LCA system corresponding to the decision perimeter; (b) territorial MFA; (c) geo-location of activities and downscaling of territorial flows to individual activities; (d) calculation of local transport distances; and (e) calculation of LCA impact indicators. The case study concerns the management of primary and secondary resources of basic quality aggregates (BQAs) in the Loire-Atlantique department (France) in 2012. Our results show that the amount of recycled cement concrete is only 7% of total consumed BQAs, although 90% of cement concrete demolition waste (CCDW) is recycled. The environmental impacts are importantly related to off-site activities. Local impacts are mainly driven by the transport of aggregates. For land planning, a concentration of fewer recycling facilities with high authorised production capacities in main cities, close to where CCDW is mainly produced, would divide transport needs in half and thus considerably reduce environmental impacts. |
| Databáze: | OpenAIRE |
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