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LCA life Cycle Assessment

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https://www.readbyqxmd.com/read/29333000/distributions-of-emissions-intensity-for-individual-beef-cattle-reared-on-pasture-based-production-systems
#1
G A McAuliffe, T Takahashi, R J Orr, P Harris, M R F Lee
Life Cycle Assessment (LCA) of livestock production systems is often based on inventory data for farms typical of a study region. As information on individual animals is often unavailable, livestock data may already be aggregated at the time of inventory analysis, both across individual animals and across seasons. Even though various computational tools exist to consider the effect of genetic and seasonal variabilities in livestock-originated emissions intensity, the degree to which these methods can address the bias suffered by representative animal approaches is not well-understood...
January 10, 2018: Journal of Cleaner Production
https://www.readbyqxmd.com/read/29328658/modelling-net-land-occupation-of-hydropower-reservoirs-in-norway-for-use-in-life-cycle-assessment
#2
Martin Dorber, Roel May, Francesca Verones
Increasing hydropower electricity production constitutes a unique opportunity to mitigate climate change impacts. However, hydropower also impacts aquatic and terrestrial biodiversity through freshwater habitat alteration, water quality degradation, and land use and land use change (LULUC). Today, no operational model exists that covers any of these cause-effect pathways within Life Cycle Assessment (LCA). This paper contributes to the assessment of LULUC impacts of hydropower electricity production in Norway in LCA...
January 12, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29328654/country-level-life-cycle-assessment-of-greenhouse-gas-emissions-from-liquefied-natural-gas-trade-for-electricity-generation
#3
Adebola S Kasumu, Vivian Li, James W Coleman, Jeanne Liendo, Sarah M Jordaan
In the determination of the net impact of Liquefied Natural Gas (LNG) on greenhouse gas emissions, Life Cycle Assessments (LCA) of electricity generation have yet to combine the effects of transport distances between exporting and importing countries, country-level infrastructure in importing countries, and the fuel sources displaced in importing countries. To address this, we conduct a LCA of electricity generated from LNG export from British Columbia, Canada with a three-step approach: (1) a review of viable electricity generation markets for LNG, (2) the development of results for greenhouse gas emissions that account for transport to importing nations as well as the infrastructure required for power generation and delivery, and (3) emissions displacement scenarios to test assumptions about what electricity is being displaced in the importing nation...
January 12, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29327742/targeting-cleanups-towards-a-more-sustainable-future
#4
David O'Connor, Deyi Hou
A tension arises between society's disposition to protect people at risk from environmental pollution, and an aversion towards the potential harmful side-effects associated with cleanup activities. Here we explore how setting different cleanup standards may influence some of the environmental, social, and economic side-effects of remediation, and how they can be quantified for incorporation into cleanup target setting; these include (1) secondary environmental impacts, assessed by life cycle assessment (LCA); (2) fatalities and injuries, assessed by actuarial risk analysis; and (3) the cost effectiveness of stringent cleanup standards, assessed by the incremental cost-effectiveness ratio (ICER)...
January 12, 2018: Environmental Science. Processes & Impacts
https://www.readbyqxmd.com/read/29324492/life-cycle-assessment-and-costing-methods-for-device-procurement-comparing-reusable-and-single-use-disposable-laryngoscopes
#5
Jodi D Sherman, Lewis A Raibley, Matthew J Eckelman
BACKGROUND: Traditional medical device procurement criteria include efficacy and safety, ease of use and handling, and procurement costs. However, little information is available about life cycle environmental impacts of the production, use, and disposal of medical devices, or about costs incurred after purchase. Reusable and disposable laryngoscopes are of current interest to anesthesiologists. Facing mounting pressure to quickly meet or exceed conflicting infection prevention guidelines and oversight body recommendations, many institutions may be electively switching to single-use disposable (SUD) rigid laryngoscopes or overcleaning reusables, potentially increasing both costs and waste generation...
January 9, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29307072/life-cycle-assessment-of-opencast-coal-mine-production-a-case-study-in-yimin-mining-area-in-china
#6
Li Zhang, Jinman Wang, Yu Feng
China has the largest coal production in the world due to abundant resource requirements for economic development. In recent years, the proportion of opencast coal mine production has increased significantly in China. Opencast coal mining can lead to a large number of environmental problems, including air pollution, water pollution, and solid waste occupation. The previous studies on the environmental impacts of opencast coal mine production were focused on a single production process. Moreover, mined land reclamation was an important process in opencast coal mine production; however, it was rarely considered in previous research...
January 6, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29305039/life-cycle-costing-of-food-waste-a-review-of-methodological-approaches
#7
REVIEW
Fabio De Menna, Jana Dietershagen, Marion Loubiere, Matteo Vittuari
Food waste (FW) is a global problem that is receiving increasing attention due to its environmental and economic impacts. Appropriate FW prevention, valorization, and management routes could mitigate or avoid these effects. Life cycle thinking and approaches, such as life cycle costing (LCC), may represent suitable tools to assess the sustainability of these routes. This study analyzes different LCC methodological aspects and approaches to evaluate FW management and valorization routes. A systematic literature review was carried out with a focus on different LCC approaches, their application to food, FW, and waste systems, as well as on specific methodological aspects...
January 2, 2018: Waste Management
https://www.readbyqxmd.com/read/29291557/a-regional-scale-modeling-framework-combining-biogeochemical-model-with-life-cycle-and-economic-analysis-for-integrated-assessment-of-cropping-systems
#8
Seyed Mohammad Hossein Tabatabaie, John P Bolte, Ganti S Murthy
The goal of this study was to integrate a crop model, DNDC (DeNitrification-DeComposition), with life cycle assessment (LCA) and economic analysis models using a GIS-based integrated platform, ENVISION. The integrated model enables LCA practitioners to conduct integrated economic analysis and LCA on a regional scale while capturing the variability of soil emissions due to variation in regional factors during production of crops and biofuel feedstocks. In order to evaluate the integrated model, the corn-soybean cropping system in Eagle Creek Watershed, Indiana was studied and the integrated model was used to first model the soil emissions and then conduct the LCA as well as economic analysis...
December 29, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29289769/milk-production-life-cycle-assessment-a-comparison-between-estimated-and-measured-emission-inventory-for-manure-handling
#9
Cecilia Baldini, Luciana Bava, Maddalena Zucali, Marcella Guarino
Measuring emissions from manure management operations (from the barns to the land) is a challenging task, subject to different uncertainties related to the spatial-temporal variability in the process leading to gaseous release. At the same time, emissions inventory is a prerequisite of Life Cycle Assessment (LCA) studies. Manure management emissions are usually estimated using equations developed by Intergovernmental Panel on Climate Change (IPCC, in the case of greenhouse gases emissions) and European Environmental Agency (EEA) for Nitrogen-related emissions...
December 28, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29239602/improving-estimates-of-nitrogen-emissions-for-life-cycle-assessment-of-cropping-systems-at-the-scale-of-an-agricultural-territory
#10
Laure Nitschelm, Virginie Parnaudeau, Francoise Vertès, Hayo M G van der Werf, Michael S Corson, Valerie Viaud, Joel Aubin, Christian Walter
In life cycle assessment (LCA), simple models are currently used to estimate cropping system nitrogen (N) emissions on farms. At large spatial scales (e.g., countries), these models are valid. At a smaller spatial scale (e.g., territories), these models may be less accurate, since they completely or partially ignore local conditions such as management practices, soil or climate. The purpose of this study was to consider the variability of those factors when estimating N emissions in LCA at the watershed scale...
December 14, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29236241/set-organic-pollution-as-an-impact-category-to-achieve-more-comprehensive-evaluation-of-life-cycle-assessment-in-wastewater-related-issues
#11
Xinyue Zhao, Jixian Yang, Fang Ma
For wastewater-related issues (WRI), life cycle assessment (LCA) is often used to evaluate environmental impacts and derive optimization strategies. To promote the application of LCA for WRI, it is critical to incorporate local impact of water pollutants. Organic pollution, a main type of water pollution, has not been given much consideration in current LCA systems. This paper investigates the necessity of setting a regionalized impact category to reflect the local impact of organic pollution. A case study is conducted concerning an upgraded wastewater treatment plant (WWTP) in China, which is assumed to meet different sewage control strategies...
December 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29235999/life-cycle-assessment-study-on-polishing-units-for-use-of-treated-wastewater-in-agricultural-reuse
#12
Nurdan Büyükkamacı, Gökçe Karaca
A life cycle assessment (LCA) approach was used in the assessment of environmental impacts of some polishing units for reuse of wastewater treatment plant effluents in agricultural irrigation. These alternative polishing units were assessed: (1) microfiltration and ultraviolet (UV) disinfection, (2) cartridge filter and ultrafiltration (UF), and (3) just UV disinfection. Two different energy sources, electric grid mix and natural gas, were considered to assess the environmental impacts of them. Afterwards, the effluent of each case was evaluated against the criteria required for irrigation of sensitive crops corresponding to Turkey regulations...
December 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/29227937/identify-stakeholders-understandings-of-life-cycle-assessment-results-on-wastewater-related-issues
#13
Shunwen Bai, Xueqin Zhu, Xiuheng Wang, Nanqi Ren
To facilitate decision-making processes in waste management, it is important to not only evaluate environmental impacts, but also to measure how stakeholders form opinions and make choices based one valuation results. Life cycle assessments (LCAs) have been widely used to evaluate environmental impacts; however, LCAs cannot be used to measure how people make judgments based on evaluation results. As such, in this study, we combined LCA with conjoint analysis, an economic method that allows individuals to consider all factors and demonstrate their preferences simultaneously...
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29187068/environmental-and-economic-benefits-of-the-recovery-of-materials-in-a-municipal-solid-waste-management-system
#14
Giovanni De Feo, Carmen Ferrara, Alessio Finelli, Alberto Grosso
The main aim of this study was to perform a Life Cycle Assessment (LCA) study as well as an economic evaluation of the recovery of recyclable materials in a municipal solid waste management system. If citizens separate erroneously waste fractions, they produce both environmental and economic damages. The environmental and economic evaluation was performed for the case study of Nola (34.349 inhabitants) in Southern Italy, with a kerbside system that assured a source-separation of 62% in 2014. The economic analysis provided a quantification of the economic benefits obtainable for the population in function of the achievable percentage of source-separation...
November 29, 2017: Environmental Technology
https://www.readbyqxmd.com/read/29175620/introducing-the-green-protein-footprint-method-as-an-understandable-measure-of-the-environmental-cost-of-anchovy-consumption
#15
Jara Laso, María Margallo, María Serrano, Ian Vázquez-Rowe, Angel Avadí, Pere Fullana, Alba Bala, Cristina Gazulla, Ángel Irabien, Rubén Aldaco
In a global framework of growing concern for food security and environmental protection, the selection of food products with higher protein content and lower environmental impact is a challenge. To assess the reliability of different strategies along the food supply chain, a measure of food cost through the environmental impact-protein content binomial is necessary. This study proposes a standardized method to calculate the Green Protein Footprint (GPF) index, a method that assesses both the environmental impact of a food product and its protein content provided to consumers...
November 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29156311/impacts-from-urban-water-systems-on-receiving-waters-how-to-account-for-severe-wet-weather-events-in-lca
#16
Eva Risch, Johnny Gasperi, Marie-Christine Gromaire, Ghassan Chebbo, Sam Azimi, Vincent Rocher, Philippe Roux, Ralph K Rosenbaum, Carole Sinfort
Sewage systems are a vital part of the urban infrastructure in most cities. They provide drainage, which protects public health, prevents the flooding of property and protects the water environment around urban areas. On some occasions sewers will overflow into the water environment during heavy rain potentially causing unacceptable impacts from releases of untreated sewage into the environment. In typical Life Cycle Assessment (LCA) studies of urban wastewater systems (UWS), average dry-weather conditions are modelled while wet-weather flows from UWS, presenting a high temporal variability, are not currently accounted for...
October 23, 2017: Water Research
https://www.readbyqxmd.com/read/29149750/friends-or-foes-monetized-life-cycle-assessment-and-cost-benefit-analysis-of-the-site-remediation-of-a-former-gas-plant
#17
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
https://www.readbyqxmd.com/read/29146397/temporal-evolution-of-the-environmental-performance-of-implementing-selective-collection-in-municipal-waste-management-systems-in-developing-countries-a-brazilian-case-study
#18
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
https://www.readbyqxmd.com/read/29145056/environmental-life-cycle-assessment-of-marine-sediment-decontamination-by-citric-acid-enhanced-microwave-heating
#19
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
https://www.readbyqxmd.com/read/29145050/can-farmers-mitigate-environmental-impacts-through-combined-production-of-food-fuel-and-feed-a-consequential-life-cycle-assessment-of-integrated-mixed-crop-livestock-system-with-a-green-biorefinery
#20
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
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