Life cycle assessment of three water systems in Copenhagen - a management tool of the future

2010 ◽  
Vol 10 (6) ◽  
pp. 953-960 ◽  
Author(s):  
B. Godskesen ◽  
K. C. Zambrano ◽  
A. Trautner ◽  
N.-B. Johansen ◽  
L. Thiesson ◽  
...  

Environmental life-cycle assessment (LCA) was applied to evaluate three different water systems of the water sector in Copenhagen, Denmark, including technologies within water supply, facilities recycling water and treatment of sewer overflow. In these three water systems LCA was used to evaluate the environmental impacts of each of the processes involved. The overall conclusion was that LCA is suitable as a decision support tool in the water sector as it provides a holistic evaluation platform of the considered alternatives categorized in environmental impact categories. The use of LCA in the water sector of this region has limitation since it not yet considers impact categories assessing freshwater scarcity and ecological sustainability.

2011 ◽  
Vol 63 (3) ◽  
pp. 565-572 ◽  
Author(s):  
B. Godskesen ◽  
K. C. Zambrano ◽  
A. Trautner ◽  
N. -B. Johansen ◽  
L. Thiesson ◽  
...  

Environmental life-cycle assessment (LCA) was applied to evaluate three different water systems of the water sector in Copenhagen, Denmark, including technologies within water supply, facilities recycling water and treatment of sewer overflow. In these three water systems LCA was used to evaluate the environmental impacts of each of the processes involved. The overall conclusion was that LCA is suitable as a decision support tool in the water sector as it provides a holistic evaluation platform of the considered alternatives categorised in environmental impact categories. The use of LCA in the water sector of this region has limitations since it does not yet consider impact categories assessing freshwater scarcity and ecological sustainability.


2021 ◽  
Vol 13 (5) ◽  
pp. 2898
Author(s):  
Rakhyun Kim ◽  
Myung-Kwan Lim ◽  
Seungjun Roh ◽  
Won-Jun Park

This study analyzed the characteristics of the environmental impacts of apartment buildings, a typical housing type in South Korea, as part of a research project supporting the streamlined life cycle assessment (S-LCA) of buildings within the G-SEED (Green Standard for Energy and Environmental Design) framework. Three recently built apartment building complexes were chosen as study objects for the quantitative evaluation of the buildings in terms of their embodied environmental impacts (global warming potential, acidification potential, eutrophication potential, ozone layer depletion potential, photochemical oxidant creation potential, and abiotic depletion potential), using the LCA approach. Additionally, we analyzed the emission trends according to the cut-off criteria of the six environmental impact categories by performing an S-LCA with cut-off criteria 90–99% of the cumulative weight percentile. Consequently, we were able to present the cut-off criterion best suited for S-LCA and analyze the effect of the cut-off criteria on the environmental impact analysis results. A comprehensive environmental impact analysis of the characteristics of the six environmental impact categories revealed that the error rate was below 5% when the cut-off criterion of 97.5% of the cumulative weight percentile was applied, thus verifying its validity as the optimal cut-off criterion for S-LCA.


2016 ◽  
Vol 88 ◽  
pp. 538-549 ◽  
Author(s):  
Linda L. Fang ◽  
Borja Valverde-Pérez ◽  
Anders Damgaard ◽  
Benedek Gy. Plósz ◽  
Martin Rygaard

2017 ◽  
Vol 93 ◽  
pp. 229-238 ◽  
Author(s):  
Muratcan Başkurt ◽  
Ilgın Kocababuç ◽  
Esra Binici ◽  
Ebru Dulekgurgen ◽  
Özlem Karahan Özgün ◽  
...  

2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Femi K Owofadeju ◽  
Omeiza A Agbaje ◽  
Temitayo A Ewemoje

Life Cycle Assessment (LCA) is a decision support tool that can be used to evaluate the potential environmental impact of a product system. Environmental impact associated with the production of (0.0508×0.1524×3.6576) m lumber referred to as “2by6” in the primary wood industry was evaluated. This assessment is a cradle to gate system with boundaries spanning from the point of raw material extraction in Osun state, to transportation of the lumber product to wood market in Ibadan, Oyo state. The study compared four production scenarios by varying haulage distance and energy source during production at two sawmill facilities located in Ife and Ikire in Osun state. Data obtained from the production system were analysed using GaBi6 software to estimate and classify the emissions into five impact categories. Life Cycle Impact Assessment result (LCIA) showed that Acidification Potential (AP), Global Warming Potential (GWP) and Smog Potential (SP) were the most significant impact indicators observed in the four production scenarios. AP (2.883, 3.352, 3.483, 3.951) kg H+ mole-Equiv, GWP (13.25, 14.44, 15.45, 16.65) kg CO2-Equiv and SP (1.86, 2.15, 2.24, 2.53) kg O3-Equiv. Scenario 4 which involved a longer transportation distance and employed a diesel generator for the milling process showed the least environmental performance. Processes that contributed significant impact were wood waste disposal method employed and the secondary transportation processes during logging activities. In order to achieve a better production system, practices that encourage less waste generation and the use of renewable energy were recommended.Keywords— LCA, lumber production, environmental impact, wood waste


Energies ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 532 ◽  
Author(s):  
Kari-Anne Lyng ◽  
Andreas Brekke

Upgraded biogas, also known as biomethane, is increasingly being used as a fuel for transport in several countries and is regarded as an environmentally beneficial option. There are, nevertheless, few studies documenting the environmental impacts of biogas as a transport fuel compared with the alternatives on the market. In this study, life cycle assessment (LCA) methodology was applied to compare the environmental performance of biogas used as a fuel for bus transport with natural gas, electricity fueled buses, biodiesel, and fossil diesel. A sensitivity analysis was performed for the biogas alternative to assess the importance of the underlying assumptions. The results show that biogas has a relatively low contribution to the environmental impact categories assessed. Emissions of greenhouse gases are dependent on assumptions such as system boundaries, transport distances and methane leakages.


2016 ◽  
Vol 18 (24) ◽  
pp. 6468-6481 ◽  
Author(s):  
P. Limleamthong ◽  
M. Gonzalez-Miquel ◽  
S. Papadokonstantakis ◽  
A. I. Papadopoulos ◽  
P. Seferlis ◽  
...  

We propose a decision-support tool to assess the sustainability level of chemical products and processes.


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