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Environmental systems analysis of biogas systems - Part II: The environmental impact of replacing various reference systems

Börjesson, Pål LU and Berglund, Maria LU (2007) In Biomass & Bioenergy 31(5). p.326-344
Abstract
This paper analyses the overall environmental impact when biogas systems are introduced and replace various reference systems for energy generation, waste management and agricultural production. The analyses are based on Swedish conditions using a life-cycle perspective. The biogas systems included are based on different combinations of raw materials and final use of the biogas produced (heat, power and transportation fuel). A general conclusion is that biogas systems normally lead to environmental improvements, which in some cases are considerable. This is often due to indirect environmental benefits of changed land use and handling of organic waste products (e.g. reduced nitrogen leaching, emissions of ammonia and methane), which often... (More)
This paper analyses the overall environmental impact when biogas systems are introduced and replace various reference systems for energy generation, waste management and agricultural production. The analyses are based on Swedish conditions using a life-cycle perspective. The biogas systems included are based on different combinations of raw materials and final use of the biogas produced (heat, power and transportation fuel). A general conclusion is that biogas systems normally lead to environmental improvements, which in some cases are considerable. This is often due to indirect environmental benefits of changed land use and handling of organic waste products (e.g. reduced nitrogen leaching, emissions of ammonia and methane), which often exceed the direct environmental benefits achieved when fossil fuels are replaced by biogas (e.g. reduced emissions of carbon dioxide and air pollutants). Such indirect benefits are seldom considered when biogas is evaluated from an environmental point of view. The environmental impact from different biogas systems can, however, vary significantly due to factors such as the raw materials utilised, energy service provided and reference system replaced. (c) 2007 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
life cycle perspective, fossil fuel systems, organic waste, anaerobic digestion, energy crops
in
Biomass & Bioenergy
volume
31
issue
5
pages
326 - 344
publisher
Elsevier
external identifiers
  • wos:000246431700009
  • scopus:34147109298
ISSN
1873-2909
DOI
10.1016/j.biombioe.2007.01.004
language
English
LU publication?
yes
id
5b36e310-dcea-4eaf-87b0-be536e8e22c6 (old id 660593)
date added to LUP
2007-12-05 11:42:43
date last changed
2017-11-05 03:47:30
@article{5b36e310-dcea-4eaf-87b0-be536e8e22c6,
  abstract     = {This paper analyses the overall environmental impact when biogas systems are introduced and replace various reference systems for energy generation, waste management and agricultural production. The analyses are based on Swedish conditions using a life-cycle perspective. The biogas systems included are based on different combinations of raw materials and final use of the biogas produced (heat, power and transportation fuel). A general conclusion is that biogas systems normally lead to environmental improvements, which in some cases are considerable. This is often due to indirect environmental benefits of changed land use and handling of organic waste products (e.g. reduced nitrogen leaching, emissions of ammonia and methane), which often exceed the direct environmental benefits achieved when fossil fuels are replaced by biogas (e.g. reduced emissions of carbon dioxide and air pollutants). Such indirect benefits are seldom considered when biogas is evaluated from an environmental point of view. The environmental impact from different biogas systems can, however, vary significantly due to factors such as the raw materials utilised, energy service provided and reference system replaced. (c) 2007 Elsevier Ltd. All rights reserved.},
  author       = {Börjesson, Pål and Berglund, Maria},
  issn         = {1873-2909},
  keyword      = {life cycle perspective,fossil fuel systems,organic waste,anaerobic digestion,energy crops},
  language     = {eng},
  number       = {5},
  pages        = {326--344},
  publisher    = {Elsevier},
  series       = {Biomass & Bioenergy},
  title        = {Environmental systems analysis of biogas systems - Part II: The environmental impact of replacing various reference systems},
  url          = {http://dx.doi.org/10.1016/j.biombioe.2007.01.004},
  volume       = {31},
  year         = {2007},
}