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LCA life Cycle Assessment

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https://www.readbyqxmd.com/read/28716294/life-cycle-assessment-of-the-use-of-alternative-fuels-in-cement-kilns-a-case-study
#1
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
#2
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
#3
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
#4
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 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28697308/evaluation-of-life-cycle-assessment-lca-for-roadway-drainage-systems
#5
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, as stormwater systems differ from wastewater and drinking water systems to which LCA is more frequently applied...
July 11, 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
#6
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
#7
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
#8
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
#9
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 (ILCD) Handbook and the Environmental Footprint pilot phase looking at products (PEF) and organisations (OEF). Consequently, this model has been systematically used within the PEF/OEF pilot phase by 25 EU 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
#10
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
#11
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
https://www.readbyqxmd.com/read/28579178/waste-biorefineries-enabling-circular-economies-in-developing-countries
#12
REVIEW
A S Nizami, M Rehan, M Waqas, M Naqvi, O K M Ouda, K Shahzad, R Miandad, M Z Khan, M Syamsiro, I M I Ismail, Deepak Pant
This paper aims to examine the potential of waste biorefineries in developing countries as a solution to current waste disposal problems and as facilities to produce fuels, power, heat, and value-added products. The waste in developing countries represents a significant source of biomass, recycled materials, chemicals, energy, and revenue if wisely managed and used as a potential feedstock in various biorefinery technologies such as fermentation, anaerobic digestion (AD), pyrolysis, incineration, and gasification...
October 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28547369/air-protection-programmes-in-poland-in-the-context-of-the-low-emission
#13
Janusz Adamczyk, Arkadiusz Piwowar, Maciej Dzikuć
The protection of the air against pollutants from individual boiler plants is a big challenge in Poland. It results mainly from the preference for coal, the national energy carrier, the use of old low-efficiency boilers and the location of Poland in a temperate climate where the heating period lasts at least 5 months. This article presents a wide range of activities aimed at the reduction of the environmental impact of the emissions of pollutants from individual heat sources-the so-called low emission. The article presents the extent of the national legislation resulting from the European Union regulations...
May 25, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28541932/environmental-impact-assessment-of-a-package-type-ifas-reactor-during-construction-and-operational-phases-a-life-cycle-approach
#14
Nitin Kumar Singh, Rana Pratap Singh, Absar Ahmad Kazmi
In the present study, a life cycle assessment (LCA) approach was used to analyse the environmental impacts associated with the construction and operational phases of an integrated fixed-film activated sludge (IFAS) reactor treating municipal wastewater. This study was conducted within the boundaries of a research project that aimed to investigate the implementation related challenges of a package type IFAS reactor from an environmental perspective. Along with the LCA results of the construction phase, a comparison of the LCA results of seven operational phases is also presented in this study...
May 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28535447/application-of-a-life-cycle-assessment-to-compare-environmental-performance-in-coal-mine-tailings-management
#15
Joni Safaat Adiansyah, Nawshad Haque, Michele Rosano, Wahidul Biswas
This study compares coal mine tailings management strategies using life cycle assessment (LCA) and land-use area metrics methods. Hybrid methods (the Australian indicator set and the ReCiPe method) were used to assess the environmental impacts of tailings management strategies. Several strategies were considered: belt filter press (OPT 1), tailings paste (OPT 2), thickened tailings (OPT 3), and variations of OPT 1 using combinations of technology improvement and renewable energy sources (OPT 1A-D). Electrical energy was found to contribute more than 90% of the environmental impacts...
September 1, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28531851/comparative-life-cycle-assessment-study-on-environmental-impact-of-oil-production-from-micro-algae-and-terrestrial-oilseed-crops
#16
S Jez, D Spinelli, A Fierro, A Dibenedetto, M Aresta, E Busi, R Basosi
In this study the LCA methodology is applied in order to satisfy two goals: i) to evaluate the hot spots in site-specific production chain of biodiesel from terrestrial and micro-algae feedstock; ii) to compare quantitatively, utilizing primary data, the impacts of the first generation in respect to the third generation bio-fuels. Results show that micro-algae are neither competitive yet with traditional oil crops nor with fossil fuel. The use of renewable technologies as photovoltaics and biogas self production might increase the competitiveness of micro-algae oil...
September 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28527738/life-cycle-assessment-of-sustainable-raw-material-acquisition-for-functional-magnetite-bionanoparticle-production
#17
Jhuma Sadhukhan, Nimisha Joshi, Mobolaji Shemfe, Jonathan R Lloyd
Magnetite nanoparticles (MNPs) have several applications, including use in medical diagnostics, renewable energy production and waste remediation. However, the processes for MNP production from analytical-grade materials are resource intensive and can be environmentally damaging. This work for the first time examines the life cycle assessment (LCA) of four MNP production cases: (i) industrial MNP production system; (ii) a state-of-the-art MNP biosynthesis system; (iii) an optimal MNP biosynthesis system and (iv) an MNP biosynthesis system using raw materials sourced from wastewaters, in order to recommend a sustainable raw material acquisition pathway for MNP synthesis...
September 1, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28527378/life-cycle-assessment-of-superheated-steam-drying-technology-as-a-novel-cow-manure-management-method
#18
Mohammadmatin Hanifzadeh, Zahra Nabati, Pairote Longka, Pomthong Malakul, Defne Apul, Dong-Shik Kim
Common methods of managing dairy manure are directly applying it to the farm field as a fertilizer. For direct application without any type of treatment, the majority of nutrients in the manure run off to the local river and lake during precipitation periods. The algae bloom is one of the environmental outcomes due to eutrophication of the lakes, which may jeopardize the quality of drinking water. In this study, superheated steam drying (SSD) technology is investigated as an alternative manure management method...
September 1, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28521956/comparative-life-cycle-assessment-of-alternative-strategies-for-energy-recovery-from-used-cooking-oil
#19
Lidia Lombardi, Barbara Mendecka, Ennio Carnevale
The separate collection of Used Cooking Oil (UCO) is gaining popularity through several countries in Europe. An appropriate management of UCO waste stream leads to substantial benefits. In this study, we analyse two different possibilities of UCO energy reuse: the direct feed to a reciprocating internal combustion engine (ICE) for cogeneration purpose, and the processing to generate biodiesel. Concerning biodiesel production, we analyse four among conventional and innovative technologies, characterised by different type and amount of used chemicals, heat and electricity consumptions and yields...
May 15, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28513150/production-of-caproic-acid-from-mixed-organic-waste-an-environmental-life-cycle-perspective
#20
Wei-Shan Chen, David P B T B Strik, Cees J N Buisman, Carolien Kroeze
Caproic acid is an emerging platform chemical with diverse applications. Recently, a novel biorefinery process, that is, chain elongation, was developed to convert mixed organic waste and ethanol into renewable caproic acids. In the coming years, this process may become commercialized, and continuing to improve on the basis of numerous ongoing technological and microbiological studies. This study aims to analyze the environmental performance of caproic acid production from mixed organic waste via chain elongation at this current, early stage of technological development...
June 20, 2017: Environmental Science & Technology
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