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LCA life Cycle Assessment

Lies Huysegoms, Sandra Rousseau, Valérie Cappuyns
Site contamination is a global concern because of the potential risks for human health and ecosystem quality. Every contaminated site has its own specific characteristics and the increased availability and efficiency of remediation techniques makes the choice of remediation alternative increasingly complicated. In this paper an attributional Life Cycle Assessment (LCA) of the secondary environmental impacts of a site remediation is performed and its results are monetized using two different monetization techniques, namely Stepwise 2006 and Ecovalue 08...
November 14, 2017: Science of the Total Environment
Valeria Ibáñez-Forés, María D Bovea, Claudia Coutinho-Nóbrega, Hozana R de Medeiros-García, Raissa Barreto-Lins
The aim of this study is to analyse the evolution of the municipal solid waste management system of João Pessoa (Brazil), which was one of the Brazilian pioneers cities in implementing door-to-door selective collection programmes, in order to analyse the effect of policy decisions adopted in last decade with regard to selective collection. To do it, this study focuses on analysing the evolution, from 2005 to 2015, of the environmental performance of the municipal solid waste management (MSWM) system implemented in different sorting units with selective collection programmes by applying the Life Cycle Assessment (LCA) methodology and using as a starting point data collected directly from the different stakeholders involved in the MSWM system...
November 13, 2017: Waste Management
Pietro P Falciglia, Carlo Ingrao, Guido De Guidi, Alfio Catalfo, Guglielmo Finocchiaro, Marcello Farina, Maria Liali, Giuseppe Lorenzano, Gaetano Valastro, Federico G A Vagliasindi
The potential ability of microwave heating (MWH) for the remediation of marine sediments affected by severe hydrocarbon (HC) contamination was investigated. Decontamination effectiveness and environmental sustainability through a comparative Life Cycle Assessment (LCA) were addressed. Main results revealed that the application of a 650-W MWH treatment resulted in a rapid (15min) HC removal. A citric acid (CA) dose of 0.1M led to enhanced-HC removals of 76.9, 96.5 and 99.7% after 5, 10 and 15min of MW irradiation, respectively...
November 13, 2017: Science of the Total Environment
Ranjan Parajuli, Tommy Dalgaard, Morten Birkved
This study evaluates environmental impacts of an integrated mixed crop-livestock system with a green biorefinery (GBR). System integration included production of feed crops and green biomasses (Sys-I) to meet the demand of a livestock system (Sys-III) and to process green biomasses in a GBR system (Sys-II). Processing of grass-clover to produce feed protein was considered in Sys-II, particularly to substitute the imported soybean meal. Waste generated from the livestock and GBR systems were considered for the conversion to biomethane (Sys-IV)...
November 13, 2017: Science of the Total Environment
Mert Duygan, Michael Stauffacher, Grégoire Meylan
As a complex socio-technical system, waste management is crucially important for the sustainable management of material and energy flows. Transition to better performing waste management systems requires not only determining what needs to be changed but also finding out how this change can be realized. Without understanding the political context, insights from decision support tools such as life cycle assessment (LCA) are likely to be lost in translation to decision and policy making. This study strives to provide a first insight into the political context and address the opportunities and barriers pertinent to initiating a change in Swiss waste management...
November 10, 2017: Waste Management
Lisa Winter, Stephan Pflugmacher, Markus Berger, Matthias Finkbeiner
PURPOSE: For the past twenty years the life cycle assessment (LCA) community has sought to integrate impacts on biodiversity into the LCA framework. However, existing impact assessment methods still fail to do so comprehensively, as they only quantify few impacts related to specific species and specific regions. This paper proposes a methodological framework that will allow LCA practitioners to assess currently missing impacts on biodiversity on a global scale. METHOD: Building on existing models which seek to quantify the impacts of human activities on biodiversity, the herein proposed methodological framework consists of two components: a habitat factor for 14 major habitat types and the impact on the biodiversity status in those major habitat types...
November 10, 2017: Integrated Environmental Assessment and Management
Sara Dominguez, Jara Laso, María Margallo, Rubén Aldaco, Maria J Rivero, Ángel Irabien, Inmaculada Ortiz
Greywater reuse is an attractive option for the sustainable management of water under water scarcity circumstances, within a water circular economy restorative thinking framework. Its successful deployment relies on the availability of low cost and environmentally friendly technologies. The life cycle assessment (LCA) approach provides the appropriate methodological tool for the evaluation of alternative treatments based on environmental decision criteria and, therefore, it is highly useful during the process conceptual design...
October 26, 2017: Science of the Total Environment
I Noya, S González-García, J Berzosa, F Baucells, G Feijoo, M T Moreira
This study focuses on the assessment of the environmental profile of a milk farm, representative of the dairy sector in Northeast Spain, from a cradle-to-gate perspective. The Life Cycle Assessment (LCA) principles established by ISO standards together with the carbon footprint guidelines proposed by International Dairy Federation (IDF) were followed. The environmental results showed two critical contributing factors: the production of the livestock feed (e.g., alfalfa) and the on-farm emissions from farming activities, with contributions higher than 50% in most impact categories...
October 26, 2017: Science of the Total Environment
D N Vienescu, J Wang, A Le Gresley, J D Nixon
The aim of this study was to investigate the sustainability of producing synthetic fuels from biomass using thermochemical processing and different upgrading pathways. Life cycle assessment (LCA) models consisting of biomass collection, transportation, pre-treatment, pyrolysis and upgrading stages were developed. To reveal the environmental impacts associated with greater post-processing to achieve higher quality fuels, six different bio-oil upgrading scenarios were analysed and included esterification, ketonisation, hydrotreating and hydrocracking...
October 20, 2017: Bioresource Technology
Nancy Peña, Assumpció Antón, Andreas Kamilaris, Peter Fantke
Application of plant protection products (PPP) is a fundamental practice for viticulture. Life Cycle Assessment (LCA) has proved to be a useful tool to assess the environmental performance of agricultural production, where including toxicity-related impacts for PPP use is still associated with methodological limitations, especially for inorganic (i.e. metal-based) pesticides. Downy mildew is one of the most severe diseases for vineyard production. For disease control, copper-based fungicides are the most effective and used PPP in both conventional and organic viticulture...
October 28, 2017: Science of the Total Environment
Murnira Othman, Mohd Talib Latif, Ahmad Fariz Mohamed
This study intends to determine the health impacts from two office life cycles (St.1 and St.2) using life cycle assessment (LCA) and health risk assessment of indoor metals in coarse particulates (particulate matter with diameters of less than 10µm). The first building (St.1) is located in the city centre and the second building (St.2) is located within a new development 7km away from the city centre. All life cycle stages are considered and was analysed using SimaPro software. The trace metal concentrations were determined by inductively couple plasma-mass spectrometry (ICP-MS)...
October 25, 2017: Ecotoxicology and Environmental Safety
Sarah von Pfingsten, David Oliver Broll, Niklas von der Assen, André Bardow
Life cycle assessment (LCA) results are inevitably subject to uncertainties. Since the complete elimination of uncertainties is impossible, LCA results should be complemented by an uncertainty analysis. However, the approaches currently used for uncertainty analysis have some shortcomings: statistical uncertainty analysis via Monte Carlo simulations are inherently uncertain due to their statistical nature and can become computationally inefficient for large systems; analytical approaches use a linear approximation to the uncertainty by a first-order Taylor series expansion and thus, they are only precise for small input uncertainties...
October 27, 2017: Environmental Science & Technology
C Buccino, C Ferrara, C Malvano, G De Feo
This study presents an evaluation of the environmental performance of an ice cream cup made of PE/paper laminate using a Life Cycle Assessment (LCA) approach "from cradle to grave". Two opposite alternative disposal scenarios, as well as their intermediate combinations, were considered: 100% incineration and 100% landfilling. The environmental impacts were calculated using the EPD 2013 evaluation method since the study was developed in an environmental product declaration (EPD) perspective as well as the method ReCiPe 2008 H at the endpoint level...
October 26, 2017: Environmental Technology
Pooja Yadav, Sukha Ranjan Samadder
The goal of this study is to use life cycle assessment (LCA) tool to assess possible environmental impacts of different municipal solid waste management (MSWM) scenarios on various impact categories for the study area Dhanbad City, India. The scenarios included in the present study are collection and transportation (denoted as S1); baseline scenario consisting of recycling, open burning, open dumping, and finally unsanitary landfilling without energy recovery (denoted by S2); composting and landfilling (denoted by S3); and recycling and composting followed by landfilling of inert waste without energy recovery (denoted by S4)...
October 23, 2017: Environmental Science and Pollution Research International
Antoine Esnouf, Éric Latrille, Jean-Philippe Steyer, Arnaud Helias
Life Cycle Assessment (LCA) characterises all the exchanges between human driven activities and the environment, thus representing a powerful approach for tackling the environmental impact of a production system. However, LCA practitioners must still choose the appropriate Life Cycle Impact Assessment (LCIA) method to use and are expected to justify this choice: impacts should be relevant facing the concerns of the study and misrepresentations should be avoided. This work aids practitioners in evaluating the adequacy between the assessed environmental issues and studied production system...
October 18, 2017: Science of the Total Environment
Ola Stedje Hanserud, Francesco Cherubini, Anne Falk Øgaard, Daniel B Müller, Helge Brattebø
Increased nutrient cycling in the agri-food system is a way to achieve a healthier nutrient stewardship and more sustainable food production. In life cycle assessment (LCA) studies, use of recycled fertilizer products is often credited by the substitution method, which subtracts the environmental burdens associated with avoided production of mineral fertilizer from the system under study. The environmental benefits from avoided fertilizer production can make an important contribution to the results, but different calculation principles and often implicit assumptions are used to estimate the amount of avoided mineral fertilizer...
February 15, 2018: Science of the Total Environment
Majid Khanali, Hossein Mobli, Homa Hosseinzadeh-Bandbafha
In this study, an artificial neural network (ANN) model was developed for predicting the yield and life cycle environmental impacts based on energy inputs required in processing of black tea, green tea, and oolong tea in Guilan province of Iran. A life cycle assessment (LCA) approach was used to investigate the environmental impact categories of processed tea based on the cradle to gate approach, i.e., from production of input materials using raw materials to the gate of tea processing units, i.e., packaged tea...
September 30, 2017: Environmental Science and Pollution Research International
Mario Martín-Gamboa, Diego Iribarren, Javier Dufour
The energy sector is still dominated by the use of fossil resources. In particular, natural gas represents the third most consumed resource, being a significant source of electricity in many countries. Since electricity production in natural gas combined cycle (NGCC) plants provides some benefits with respect to other non-renewable technologies, it is often seen as a transitional solution towards a future low‑carbon power generation system. However, given the environmental profile and operational variability of NGCC power plants, their eco-efficiency assessment is required...
February 15, 2018: Science of the Total Environment
Chein-Chi Chang, Kimberly DiGiovanni, Ying Mei
Selected 2016 publications on the focus of Sustainability are reviewed and discussed here. The followings are the topics presented: • Sustainable water and wastewater utilities •Sustainable water resources management • Stormwater and green infrastructure • Sustainability in water and wastewater treatment •Life cycle assessment (LCA) applications • Sustainability for water and energy, • Sustainability and asset management.
October 1, 2017: Water Environment Research: a Research Publication of the Water Environment Federation
Francesca Recanati, Davide Marveggio, Giovanni Dotelli
The environmental sustainability has emerged as a crucial aspect in the agri-food sector, nevertheless environmental assessments and certifications of cocoa and chocolate are still missing. Given this gap and the increasing global demand for cocoa derivatives, this study aims to evaluate the environmental impacts of an Italian dark chocolate through a holistic cradle-to-grave Life Cycle Assessment (LCA). The impact categories assessed are acidification potential (AC), eutrophication potential (EU), global warming potential (GW), photochemical ozone creation potential (POC), ozone layer depletion potential (OD), abiotic depletion (AD) and cumulative energy demand (CED)...
February 1, 2018: Science of the Total Environment
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