scholarly journals LCA Case Study to LED Outdoor Luminaries as a Circular Economy Solution to Local Scale

2019 ◽  
Vol 12 (1) ◽  
pp. 190 ◽  
Author(s):  
José Adolfo Lozano-Miralles ◽  
Manuel Jesús Hermoso-Orzáez ◽  
Alfonso Gago-Calderón ◽  
Paulo Brito
Keyword(s):  
Life Cycle ◽  
End Of Life ◽  
Manufacturing Industry ◽  
Life Time ◽  
Local Economy ◽  
Second Phase ◽  
Iso 14040 ◽  
Lca Case Study ◽  
Led Luminaire

The replacement of luminaires with discharge lamps with high luminous efficacy and long life-time LED based equipment is a reality worldwide promoted by policies that favor their gradual substitution. There is a great concern in this manufacturing industry to develop new luminaires with low environmental impact during the manufacturing and transportation processes and its end-of-life disposal (reducing greenhouse gas emissions, toxic or hazardous components, …). Life cycle assessment (LCA) is a very extended tool used to provide information on the quality and quantity of environmental impacts in the life cycle phases of any product, system, or service. This article includes all phases of the LCA analysis of a selected streetlight LED luminaire manufactured by a SME where a landfill deposit is the end-of-life scenario. In a second phase, alternatives are sought for the reuse of the most significant elements that improve its local economy. The results are classified and sorted according to the ISO 14040 standard.

scholarly journals From Buildings’ End of Life to Aggregate Recycling under a Circular Economic Perspective: A Comparative Life Cycle Assessment Case Study

2021 ◽  
Vol 13 (17) ◽  
pp. 9625
Author(s):  
Ambroise Lachat ◽  
Konstantinos Mantalovas ◽  
Tiffany Desbois ◽  
Oumaya Yazoghli-Marzouk ◽  
Anne-Sophie Colas ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
End Of Life ◽  
Environmental Impacts ◽  
Open Loop ◽  
Decision Makers ◽  
Construction And Demolition Waste ◽  
Recycled Aggregates ◽  
Demolition Waste

The demolition of buildings, apart from being energy intensive and disruptive, inevitably produces construction and demolition waste (C&Dw). Unfortunately, even today, the majority of this waste ends up underexploited and not considered as valuable resources to be re-circulated into a closed/open loop process under the umbrella of circular economy (CE). Considering the amount of virgin aggregates needed in civil engineering applications, C&Dw can act as sustainable catalyst towards the preservation of natural resources and the shift towards a CE. This study completes current research by presenting a life cycle inventory compilation and life cycle assessment case study of two buildings in France. The quantification of the end-of-life environmental impacts of the two buildings and subsequently the environmental impacts of recycled aggregates production from C&Dw was realized using the framework of life cycle assessment (LCA). The results indicate that the transport of waste, its treatment, and especially asbestos’ treatment are the most impactful phases. For example, in the case study of the first building, transport and treatment of waste reached 35% of the total impact for global warming. Careful, proactive, and strategic treatment, geolocation, and transport planning is recommended for the involved stakeholders and decision makers in order to ensure minimal sustainability implications during the implementation of CE approaches for C&Dw.

scholarly journals Comparison of Product Carbon Footprint Protocols: Case Study on Medium-Density Fiberboard in China

2018 ◽  
Vol 15 (10) ◽  
pp. 2060 ◽  
Author(s):  
Shanshan Wang ◽  
Weifeng Wang ◽  
Hongqiang Yang
Keyword(s):  
Life Cycle ◽  
End Of Life ◽  
Carbon Footprint ◽  
Medium Density Fiberboard ◽  
Ghg Emissions ◽  
Life Cycle Stage ◽  
Medium Density ◽  
Biogenic Carbon ◽  
Pas 2050

Carbon footprint (CF) analysis is widely used to quantify the greenhouse gas (GHG) emissions of a product during its life cycle. A number of protocols, such as Publicly Available Specification (PAS) 2050, GHG Protocol Product Standard (GHG Protocol), and ISO 14067 Carbon Footprint of Products (ISO 14067), have been developed for CF calculations. This study aims to compare the criteria and implications of the three protocols. The medium-density fiberboard (MDF) (functional unit: 1 m3) has been selected as a case study to illustrate this comparison. Different criteria, such as the life cycle stage included, cut-off criteria, biogenic carbon treatment, and other requirements, were discussed. A cradle-to-gate life cycle assessment (LCA) for MDF was conducted. The CF values were −667.75, −658.42, and 816.92 kg of carbon dioxide equivalent (CO2e) with PAS 2050, GHG protocol, and ISO 14067, respectively. The main reasons for the different results obtained were the application of different cut-off criteria, exclusion rules, and the treatment of carbon storage. A cradle-to-grave assessment (end-of-life scenarios: landfill and incineration) was also performed to identify opportunities for improving MDF production. A sensitivity analysis to assess the implications of different end-of-life disposals was conducted, indicating that landfill may be preferable from a GHG standpoint. The comparison of these three protocols provides insights for adopting appropriate methods to calculate GHG emissions for the MDF industry. A key finding is that for both LCA practitioners and policy-makers, PAS 2050 is preferentially recommended to assess the CF of MDF.

scholarly journals Succession pattern of invertebrates on an unburied corpse of a cat suffering from cancer: A case study

2020 ◽  
Vol 76 (03) ◽  
pp. 6366-2020
Author(s):  
KATARZYNA CZEPIEL-MIL ◽  
ROBERT STRYJECKI ◽  
PIOTR LISTOS ◽  
DANUTA KOWALCZYK-PECKA ◽  
KAMIL WYDRA ◽  
...  
Keyword(s):  
Life Cycle ◽  
Forensic Entomology ◽  
Calliphora Vicina ◽  
Second Phase ◽  
Time Of Death ◽  
The Third ◽  
Third Phase ◽  
First Instar ◽  
The Family

Forensic entomology frequently assists forensic medicine in legal investigations. It makes it possible to estimate the time of death when a cadaver is recovered at a relatively advanced stage of decomposition. In criminalistics practice, unburied bodies are found the most commonly, and therefore the fauna of these cadavers is the best investigated. The aim of this study was to collect a succession of insects and other invertebrates occurring on an unburied corpse. The experiment was conducted on the carcass of a cat euthanized due to an advanced cancer process. The carcass was colonized by three phyla of animals: Annelidae, Mollusca, and Arthropoda. They belonged to 7 classes and 10 orders. The most diverse were Arthropoda. They were classified into 5 classes: Insecta, Diplopoda, Malacostraca, Entognata, and Arachnida, and into 8 orders: Julida, Isopoda, Collembola, Diptera, Coleoptera, Hemiptera, Araneae, and Acari. The fly species Calliphora vicina from the family Calliphoridae is of particular interest among the insects collected because it is one of the fundamental indicator species whose life cycle makes it possible to determine an approximate time of death. During the study it was noted that arthropods occurred in a certain pattern of succession, predictable in forensic entomology. The first group was Calliphora vicina (Calliphoridae, Diptera), which laid eggs. The next (second) group consisted of first-instar C. vicina larvae and insects feeding on these larvae, such as Philonthus tenuicornis (Staphylinidae, Coleoptera). The first stage of succession was the appearance of eggs of C. vicina. The second phase was the appearance of adult flies other than Calliphoridae and of accidental species, as well as beetles (e.g. Philonthus tenuicornis, Staphylinidae, Coleoptera) feeding on larvae of C. vicina. The third phase of succession was the appearance of all larvae stages of C. vicina that continued and finished their life cycle.

scholarly journals Life cycle assessment as a tool to integrate environmental indicators in food products: a chocolate LCA case study

2016 ◽  
Vol 8 (1) ◽  
pp. 21 ◽  
Author(s):  
Enrica Vesce ◽  
Germana Olivieri ◽  
Maria Beatrice Pairotti ◽  
Annalisa Romani ◽  
Riccardo Beltramo
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Food Products ◽  
Environmental Indicators ◽  
Lca Case Study
Sign in / Sign up

Export Citation Format

Share Document