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LCA life Cycle Assessment

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https://www.readbyqxmd.com/read/28806547/environmental-life-cycle-assessment-of-seafood-production-a-case-study-of-trawler-catches-in-tunisia
#1
Khaled Abdou, Didier Gascuel, Joël Aubin, Mohamed Salah Romdhane, Frida Ben Rais Lasram, François Le Loc'h
The Gulf of Gabes is one of the most productive fishery areas in the southern Mediterranean Sea. It is archetypal of an ecosystem in which the effects of fisheries are most pronounced. Demersal trawling is the main fishing activity in the Gulf of Gabes. Life Cycle Assessment (LCA) was applied to assess the environmental performance landing 1t of seafood with wooden demersal trawlers in the Gulf of Gabes. Impact categories included in the study were abiotic depletion potential (ADP), acidification potential (AP), eutrophication potential (EP), global warming potential (GWP), ozone depletion potential (ODP), photochemical oxidant formation potential (POFP), human toxicity potential (HTP), marine eco-toxicity potential (METP), terrestrial eco-toxicity potential (TETP), land occupation potential (LOP), and total cumulative energy demand (TCED)...
August 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28803145/plasmix-management-lca-of-six-possible-scenarios
#2
R Cossu, F Garbo, F Girotto, F Simion, A Pivato
Only a small percentage of the separately collected plastic is recycled. The mechanical selection process of source segregated plastic materials generates considerable amounts of residues that are commonly named as Plasmix. By means of a life cycle assessment (LCA) modelling, the environmental performances of the main Plasmix management options (thermal treatment, energy recovery, and landfilling) were compared. Six treatment scenarios, with different pre-treatment alternatives, were evaluated. Landfilling after waste washing and Plasmix substitution of coke in a blast furnace represent the most favorable options, since the performances of thermal treatment and energy recovery are worsened by specific emissions of a variety of toxic compounds and heavy metals within plastic materials as additives...
August 9, 2017: Waste Management
https://www.readbyqxmd.com/read/28797625/environmental-performance-of-household-waste-management-in-europe-an-example-of-7-countries
#3
Susanna Andreasi Bassi, Thomas H Christensen, Anders Damgaard
An attributional life cycle assessment (LCA) of the management of 1ton of household waste was conducted in accordance with ISO 14044:2006 and the ILCD Handbook for seven European countries, namely Germany, Denmark, France, UK, Italy, Poland and Greece, representing different household waste compositions, waste management practices, technologies, and energy systems. National data were collected from a range of sources regarding household waste composition, household sorting efficiency, collection, waste treatments, recycling, electricity and heat composition, and technological efficiencies...
August 7, 2017: Waste Management
https://www.readbyqxmd.com/read/28796442/total-environmental-impacts-of-biofuels-from-corn-stover-using-a-hybrid-life-cycle-assessment-lca-model-combining-process-lca-and-economic-input-output-lca
#4
Changqi Liu, Yaji Huang, Xinye Wang, Yang Tai, Lingqin Liu, Hao Liu
Studies on the environmental analysis of biofuels by fast pyrolysis and hydroprocessing (BFPH) have so far only focused on the environmental impacts from direct emissions and included few indirect emissions. The influence of ignoring some indirect emissions on the environmental performance of BFPH has not been well investigated and hence is not really understood. In addition, in order to avoid shifting environmental problems from one media to another, a comprehensive assessment of environmental impacts caused by the processes must quantify the environmental emissions to all media (air, water, and land) in relation to each life cycle stage...
August 10, 2017: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/28783568/evaluation-of-bioaugmentation-using-multiple-life-cycle-assessment-approaches-a-case-study-of-constructed-wetland
#5
Xinyue Zhao, Jixian Yang, Xuedong Zhang, Li Wang, Fang Ma
Bioaugmentation is a promising technology to enhance the removal of specific pollutants; however, environmental impacts of implementing bioaugmentation have not been considered in most studies. Appropriate methodology is required for the evaluation from both in-depth and comprehensive perspectives, which leads to this study initiating the application of life cycle assessment (LCA) of bioaugmentation. Two LCA methods (CML and e-Balance) were applied to a bioaugmentation case with the aim of illustrating how to evaluate the environmental impacts of bioaugmentation from different perspectives based on the selection of different LCA methods...
July 29, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28783022/environmental-life-cycle-assessment-on-the-separation-of-rare-earth-oxides-through-solvent-extraction
#6
Ehsan Vahidi, Fu Zhao
Over the past decade, Rare Earth Elements (REEs) have gained special interests due to their significance in many industrial applications, especially those related to clean energy. While REEs production is known to cause damage to the ecosystem, only a handful of Life Cycle Assessment (LCA) investigations have been conducted in recent years, mainly due to lack of data and information. This is especially true for the solvent extraction separation of REEs from aqueous solution which is a challenging step in the REEs production route...
August 4, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28781157/comparative-environmental-evaluation-of-construction-waste-management-through-different-waste-sorting-systems-in-hong-kong
#7
Md Uzzal Hossain, Zezhou Wu, Chi Sun Poon
This study aimed to compare the environmental performance of building construction waste management (CWM) systems in Hong Kong. Life cycle assessment (LCA) approach was applied to evaluate the performance of CWM systems holistically based on primary data collected from two real building construction sites and secondary data obtained from the literature. Different waste recovery rates were applied based on compositions and material flow to assess the influence on the environmental performance of CWM systems...
August 3, 2017: Waste Management
https://www.readbyqxmd.com/read/28775358/integrate-life-cycle-assessment-and-risk-analysis-results-not-methods
#8
Igor Linkov, Benjamin D Trump, Ben A Wender, Thomas P Seager, Alan J Kennedy, Jeffrey M Keisler
Two analytic perspectives on environmental assessment dominate environmental policy and decision-making: risk analysis (RA) and life-cycle assessment (LCA). RA focuses on management of a toxicological hazard in a specific exposure scenario, while LCA seeks a holistic estimation of impacts of thousands of substances across multiple media, including non-toxicological and non-chemically deleterious effects. While recommendations to integrate the two approaches have remained a consistent feature of environmental scholarship for at least 15 years, the current perception is that progress is slow largely because of practical obstacles, such as a lack of data, rather than insurmountable theoretical difficulties...
August 4, 2017: Nature Nanotechnology
https://www.readbyqxmd.com/read/28747241/developing-a-predictive-model-for-the-energy-content-of-goat-milk-as-the-basis-for-a-functional-unit-formulation-to-be-used-in-the-life-cycle-assessment-of-dairy-goat-production-systems
#9
P P Danieli, B Ronchi
Recent reports on livestock environmental impact based on life cycle assessment (LCA) did not fully consider the case of the dairy goat. Assignment of an environmental impact (e.g. global warming potential) to a specific product needs to be related to the appropriate 'unitary amount' or functional unit (FU). For milk, the energy content may provide a common basis for a definition of the FU. To date, no ad hoc formulations for the FU of goat milk have been proposed. For these reasons, this study aimed to develop and test one or more predictive models (DPMs) for the gross energy (GE) content of goat milk, based on published compositional data, such as fat (F), protein, total solids (TS), solid non-fat matter (SNF), lactose (Lac) and ash...
July 27, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28716294/life-cycle-assessment-of-the-use-of-alternative-fuels-in-cement-kilns-a-case-study
#10
Martha Georgiopoulou, Gerasimos Lyberatos
The benefits of using alternative fuels (AFs) in the cement industry include reduction of the use of non-renewable fossil fuels and lower emissions of greenhouse gases, since fossil fuels are replaced with materials that would otherwise be degraded or incinerated with corresponding emissions and final residues. Furthermore, the use of alternative fuels maximizes the recovery of energy. Seven different scenaria were developed for the production of 1 ton of clinker in a rotary cement kiln. Each of these scenaria includes the use of alternative fuels such as RDF (Refuse derived fuel), TDF (Tire derived fuel) and BS (Biological sludge) or a mixture of them, in partial replacement of conventional fuels such as coal and pet coke...
July 14, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28714306/meta-analysis-and-harmonization-of-life-cycle-assessment-lca-studies-for-algae-biofuels
#11
Qingshi Tu, Matthew J Eckelman, Julie B Zimmerman
Algae biodiesel (BioD) and renewable diesel (RD) have been recognized as potential solutions to mitigate fossil fuel consumption and the associated environmental issues. Life cycle assessment (LCA) has been used by many researchers to evaluate the potential environmental impacts of these algae-derived fuels yielding a wide range of results, in some cases even differing on indicating if these fuels are preferred to petroleum-derived or not. This meta-analysis reviews the methodological preferences and results for energy consumption, greenhouse gas emissions and water consumption for 54 LCA studies that considered algae BioD and RD...
July 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28705422/a-critical-review-on-sustainable-biochar-system-through-gasification-energy-and-environmental-applications
#12
REVIEW
Siming You, Yong Sik Ok, Season S Chen, Daniel C W Tsang, Eilhann E Kwon, Jechan Lee, Chi-Hwa Wang
This review lays great emphasis on production and characteristics of biochar through gasification. Specifically, the physicochemical properties and yield of biochar through the diverse gasification conditions associated with various types of biomass were extensively evaluated. In addition, potential application scenarios of biochar through gasification were explored and their environmental implications were discussed. To qualitatively evaluate biochar sustainability through the gasification process, all gasification products (i...
July 1, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28704669/coupling-life-cycle-assessment-and-the-rothc-model-to-estimate-the-carbon-footprint-of-green-manure-based-wheat-production-in-china
#13
Zhiyuan Yao, Dabin Zhang, Pengwei Yao, Na Zhao, Na Liu, Bingnian Zhai, Suiqi Zhang, Yangyang Li, Donglin Huang, Weidong Cao, Yajun Gao
Reducing the carbon footprint (CF) of crop production is an efficient way to mitigate climate change. Growing legume green manure (LGM) instead of summer fallow may achieve this goal by lowering synthetic nitrogen (N) fertilizer needs and replenishing the depleted soil carbon (C) pool. The Rothamsted Carbon (RothC) model was incorporated into the Life-Cycle Assessment (LCA) to evaluate the present and projected CFs of green manure-based wheat production systems in dryland agriculture on the Loess Plateau of China...
July 27, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28697308/evaluation-of-life-cycle-assessment-lca-for-roadway-drainage-systems
#14
Diana M Byrne, Marta K Grabowski, Amy C B Benitez, Arthur R Schmidt, Jeremy S Guest
Roadway drainage design has traditionally focused on cost-effectively managing water quantity; however, runoff carries pollutants, posing risks to the local environment and public health. Additionally, construction and maintenance incur costs and contribute to global environmental impacts. While life cycle assessment (LCA) can potentially capture local and global environmental impacts of roadway drainage and other stormwater systems, LCA methodology must be evaluated because stormwater systems differ from wastewater and drinking water systems to which LCA is more frequently applied...
July 25, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28671290/improving-substance-information-in-usetox%C3%A2-part-2-data-for-estimating-fate-and-ecosystem-exposure-factors
#15
Erwan Saouter, Karin Aschberger, Peter Fantke, Michael Z Hauschild, Aude Kienzler, Alicia Paini, Rana Pant, Anita Radovnikovic, Michela Secchi, Serenella Sala
The scientific consensus model USEtox® is developed since 2003 under the auspices of the UNEP-SETAC Life Cycle Initiative as a harmonized approach for characterizing human and freshwater toxicity in life cycle assessment (LCA) and other comparative assessment frameworks. Using physicochemical substance properties, USEtox® quantifies potential human toxicity and freshwater ecotoxicity impacts by combining environmental fate, exposure and toxicity effects information, considering multimedia fate and multi-pathway exposure processes...
July 3, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28662843/environmental-impacts-and-benefits-of-state-of-the-art-technologies-for-e-waste-management
#16
Mahdi Ikhlayel
This study aims to evaluate the environmental impacts and benefits of state-of-the-art technologies for proper e-waste handling using Jordan as a case study. Life Cycle Assessment (LCA) was employed to evaluate five advanced management systems represent state-of-the-art treatment technologies, including sanitary landfilling; proper recycling of metals, materials, and precious metals (PMs); and incineration of plastic and the hazardous portion of printed circuit boards (PCBs). Six e-waste products that contribute the most to the e-waste in Jordan were included in the assessment of each scenario, which resulted in 30 total cases of e-waste management...
June 26, 2017: Waste Management
https://www.readbyqxmd.com/read/28623835/life-cycle-assessment-of-treatment-and-handling-options-for-a-highly-saline-brine-extracted-from-a-potential-co2-storage-site
#17
Hafiz H Salih, Jiaxing Li, Ruth Kaplan, Seyed A Dastgheib
Carbon dioxide (CO2) injection in deep saline aquifers is a promising option for CO2 geological sequestration. However, brine extraction may be necessary to control the anticipated increase in reservoir pressure resulting from CO2 injection. The extracted brines usually have elevated concentrations of total dissolved solids (TDS) and other contaminants and require proper handling or treatment. Different options for the handling or treatment of a high-TDS brine extracted from a potential CO2 sequestration site (Mt...
June 12, 2017: Water Research
https://www.readbyqxmd.com/read/28618056/improving-substance-information-in-usetox-%C3%A2-part-1-discussion-on-data-and-approaches-for-estimating-freshwater-ecotoxicity-effect-factors
#18
Erwan Saouter, Karin Aschberger, Peter Fantke, Michael Z Hauschild, Stephanie K Bopp, Aude Kienzler, Alicia Paini, Rana Pant, Michela Secchi, Serenella Sala
The scientific consensus model USEtox(®) is recommended by the European Commission as the reference model to characterize life cycle chemical emissions in terms of their potential human toxicity and freshwater aquatic ecotoxicity impacts in the context of the International Reference Life Cycle Data System Handbook and the Environmental Footprint pilot phase looking at products (PEF) and organizations (OEF). Consequently, this model has been systematically used within the PEF/OEF pilot phase by 25 European Union industry sectors, which manufacture a wide variety of consumer products...
June 15, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28612353/lca-case-study-tertiary-treatment-process-options-for-wastewater-reuse
#19
Erwan Carré, Joana Beigbeder, Vincent Jauzein, Guillaume Junqua, Miguel Lopez-Ferber
Tertiary treatment process (including filtration and/or disinfection) is necessary to obtain a water quality suited for high-quality reuse from wastewater treatment. Industrial pilots representing small real size treatment units were set up downstream of a conventional secondary treatment of a wastewater treatment plant in the South of France and their performance followed for two years. Life-cycle assessment (LCA) methodology is used to compare the environmental impacts of different treatment processes. Five tertiary treatment trains were studied: 1) sand filtration + storage followed by ultraviolet (UV) dynamic reactor disinfection (SF-UVD), 2) sand filtration (SF) + UV batch reactor disinfection (SF-UVB), 3) ultrafiltration (UF), 4) ultrafiltration and UV batch reactor disinfection (UF-UVB), 5) microfiltration (MF) and storage followed by dynamic UV disinfection (MF-UVD)...
June 13, 2017: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/28602425/comparative-life-cycle-assessment-of-mswi-fly-ash-treatment-and-disposal
#20
Florian Huber, David Laner, Johann Fellner
Municipal solid waste incineration (MSWI) fly ash constitutes a hazardous waste. The possibilities for managing this waste comprise disposal at underground deposits or at above-ground landfills after cement stabilisation, application of the FLUREC process, thermal treatment in a dedicated furnace or thermal co-treatment together with combustible hazardous waste. A comparative life cycle assessment (LCA) study was conducted in order to assess the environmental impact of these five MSWI fly ash disposal options with regard to two different time horizons (100years, indefinite)...
June 8, 2017: Waste Management
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