The objective of this MSc thesis is to examine the life cycle assessment (LCA) impacts of bio-gas/biofuel production within a system that may treat different types of organic waste substrates. The purpose is to understand how life cycle environmental impacts of biogas/biofuel production is influ-

The results indicate clearly the importance of the process steps biomass cultivation. (substrate production) and the biomass conversion to biogas as well as biogas 

To answer this question and assess the environmen-tal performance of miscanthus-based biogas production, a Life-Cycle Assessment (LCA) was conducted according to the ISO standards 14040 and 14040 (ISO, 2006a,b). The current production in the country's biogas plants (5.6 PJ in 2014). The climate benefit in cultivation would be equivalent to 0.2 million t CO2-equivalents per year, and the use of biogas as a replacement for diesel would a similar emission reduction in addition. While the sustainability of arable land use was improved from a soil quality Easily share your publications and get them in front of Issuu’s millions of monthly readers. Title: Lca report, Author: Biogas-E, Name: Lca report, Length: 23 pages, Page: 9, Published: 2015-09-07 .

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The environmental impacts of biogas production processes vary according to regional farming procedures and, therefore, the soil, cli mate conditions, crop yield, In this study, life cycle assessment (LCA) methodology was used to assess the environmental impacts associated with biogas digesters in Vietnam. Handling 1,000 kg of liquid manure and 100 kg of solid manure in a system with a biogas digester reduced the impact potential from 4.4 kg carbon dioxide (CO 2 ) equivalents to 3.2 kg CO 2 equivalents Abstract This paper provides a comprehensive review of 48 studies on the Life Cycle Assessment (LCA) of biogas production from 2006 to 2018 (13 years). The scope of the study, type of feedstock and impact categories used in the reviewed studies were discussed. In Europe, the common biogas (BG) production process is the anaerobic digestion of agricultural waste, manure, and energy crops; then biogas, or biomethane (if the plant has an upgrading step) is currently fed to an internal combustion engine for electricity and heat production. The existing targeted processes of LCA on biogas projects include methane production (El-Mashad and Zhang, 2010), biogas utilization pathways , and by-products reuse modes (Rehl and Müller, 2011). The objective of this MSc thesis is to examine the life cycle assessment (LCA) impacts of bio-gas/biofuel production within a system that may treat different types of organic waste substrates.

Biogas production upon acidification, and therefore energy yield, was higher, reaching up to 22.88 m 3 CH 4 ton −1 feed (229.25 kWh ton −1 feed), compared with 17.45 m 3 CH 4 ton −1 feed (174.85 kWh ton −1 feed) for the case where no pretreatment was performed.

An applicable methodology to evaluate by this approach is the life cycle assessment (LCA).Currently, the LCA has been applied to various energy production systems. The adoption of technologies such as biogas is generally promoted by environmental issues [14], specifically for waste disposal. assessment (LCA) to commercial biogas production provides a valuable tool for evaluating the environmental impact of waste management processes and assists in economic decision-making.

Combining a spatial optimization model and Life Cycle Assessment and potassium) recycling and renewable energy production(biogas) can 

Hur får jag nya färgsorteringspåsar? Här hittar du svaren på de vanligaste frågorna. Alla frågor och svar · Ikon för biogas  Assessment of Energy Performance in the Life - cycle of Biogas Production . A limited LCA comparing large - and small - scale production of ethanol for heavy  The LCA is of the attributional type, i.e. it describes the environmental impact related to the future (steady state) operation of a system for biogas production and injection into the grid and to the conventional natural gas system. In biogas LCA-studies, the allocation dilemma occurs when the production process generates multiple products of which only a selection is relevant for the product scenario analyzed. Products of a biogas system (cradle to grave) are biogas and digestate.

Authors. Matthias Stucki, Niels Jungbluth, Marianne Leuenberger. The development of the life cycle assessment can be separated into five main stages: (i) the collection of the substrate and its storage, (ii) pretreatment of the  May 30, 2020 Electricity production based on biogas can contribute to greenhouse gas mitigation (Kiesel, Wagner, & Lewandowski, 2017; Scarlat, Dallemand,  The general goal of LCA for biogas energy systems is to deter- mine the environmental impacts of producing and utilizing biogas as an energy source, i.e.
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The skulle kunna vara en fullständig LCA av de studerade systemen. model has been coupled to a life cycle analysis (LCA) model for The interest for increasing biogas production is an example of the view that  av M Linné · 2007 · Citerat av 5 — För biogas är den senaste från år 2000 och för etanol från svenskt vete från 1996. sammanställningarna görs även LCA-analyser för användning av bränslet i tunga Bernesson 2004 Farm-scale Production of RME and Ethanol for Heavy  Biogas Production from a Systems Analytical Perspective.

Results calculated with no alloca.
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In this work, 15 life cycle assessment (LCA) studies of biogas systems from around Europe were reviewed. Biogas scenarios in all the studies had lower GHG intensities than their reference systems. The study shows that the type of feedstock, e.g. , maize, grass or animal manure is a determining factor for the environmental impacts of biogas systems.

LCA of Biogas Through Anaerobic Digestion from the Organic Fraction of Municipal Solid Waste (OFMSW) Compared to Incineration of the Waste Lisa Bolin1, Hui Mien Lee2 and Mattias Lindahl1 1 Environmental Technology and Management, IEI, Linköping University, Sweden 2 Singapore Institute of Manufacturing Technology, Singapore Mattias.Lindahl@liu.se 2019-06-20 Upgrading consists of a range of purification processes aimed at increasing the methane content of biogas to reach specifications similar to natural gas. In this perspective, an environmental assessment, based on the Life Cycle Assessment (LCA) method, of different upgrading technologies is helpful to identify the environmental characteristics of biomethane and the critical steps for improvement. Biogas LCA studies provides to assess the environmental impacts from biogas production, to determine energy and material requirements and emissions and to compare different scenarios . LCA can be In that regard, (organic) waste of production processes can be object of anaerobic digestion, generating biogas; it can environmentally benefit by means of waste treatment (and consequent avoided environmental impacts) and electricity production. Additionally, the life cycle assessment (LCA) is the most comprehensive tool for environmental LCA is a useful tool for sustainability assessment in biogas systems. There are several studies of LCA in biogas. A general framework for biogas production has been established by other authors in independent studies.