The steel industry, abiotic resource depletion and life cycle assessment: a real or perceived issue?

2011 ◽  
Vol 19 (1) ◽  
pp. 78-90 ◽  
Author(s):  
Mohan Yellishetty ◽  
Gavin M. Mudd ◽  
P.G. Ranjith
Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3820
Author(s):  
Mélanie Douziech ◽  
Lorenzo Tosti ◽  
Nicola Ferrara ◽  
Maria Laura Parisi ◽  
Paula Pérez-López ◽  
...  

Heat production from a geothermal energy source is gaining increasing attention due to its potential contribution to the decarbonization of the European energy sector. Obtaining representative results of the environmental performances of geothermal systems and comparing them with other renewables is of utmost importance in order to ensure an effective energy transition as targeted by Europe. This work presents the outputs of a Life Cycle Assessment (LCA) performed on the Rittershoffen geothermal heat plant applying guidelines that were developed within the H2020 GEOENVI project. The production of 1 kWhth from the Rittershoffen heat plant was compared to the heat produced from natural gas in Europe. Geothermal heat production performed better than the average heat production in climate change and resource use, fossil categories. The LCA identified the electricity consumption during the operation and maintenance phase as a hot spot for several impact categories. A prospective scenario analysis was therefore performed to assess the evolution of the environmental performances of the Rittershoffen heat plant associated with the future French electricity mixes. The increase of renewable energy shares in the future French electricity mix caused the impact on specific categories (e.g., land use and mineral and metals resource depletion) to grow over the years. However, an overall reduction of the environmental impacts of the Rittershoffen heat plant was observed.


2020 ◽  
Vol 725 ◽  
pp. 138292 ◽  
Author(s):  
Lin Cui ◽  
Kaiming Ba ◽  
Fangqiu Li ◽  
Qingsong Wang ◽  
Qiao Ma ◽  
...  

2019 ◽  
Vol 8 (4) ◽  
pp. 304 ◽  
Author(s):  
Björn Koch ◽  
Fernando Peñaherrera ◽  
Alexandra Pehlken

Including criticality into Life Cycle Assessment (LCA) has always been challenging to achieve but desirable to accomplish. In this article, we present a new approach for the evaluation of resource consumption of products by building comparison values based on Life Cycle Impact Assessment (LCIA) combined with weighted criticality values to show the direct impacts of criticality on LCA results. For this purpose, we develop an impact indicator based on the Abiotic Depletion Potential (ADP) of natural resources and use the two main parameters defined by the EU to determine the criticality of a material - the economic importance and the supply risk – in our case studies to build the Criticality Weighted Abiotic Depletion Potentials (CWADPs), one for each parameter. These indicators allow identifying and measuring the impacts of criticality when comparing the results of resource depletion using the ADP methodology and the results that incorporate criticality. The comparison of the CWADPs to the corresponding EU criticality values and its thresholds it reflects the equivalent criticality of the assessed product. This information reflects the impacts of criticality on LCA and assesses the total resource consumption of critical materials in a system.Keywords: Life Cycle Assessment, criticality, resources, materials, sustainability indicator


OENO One ◽  
2016 ◽  
Vol 50 (2) ◽  
Author(s):  
Anthony Rouault ◽  
Sandra Beauchet ◽  
Christel Renaud-Gentie ◽  
Frédérique Jourjon

<p style="text-align: justify;"><strong>Aims</strong>: Using Life Cycle Assessment (LCA), this study aims to compare the environmental impacts of two different viticultural technical management routes (TMRs); integrated and organic) and to identify the operations that contribute the most to the impacts.</p><p style="text-align: justify;"><strong>Methods and results</strong>: LCA impact scores were expressed in two functional units: 1 ha of cultivated area and 1 kg of collected grape. We studied all operations from field preparation before planting to the end-of-life of the vine. Inputs and outputs were transformed into potential environmental impacts thanks to SALCA™ (V1.02) and USETox™ (V1.03) methods. Plant protection treatments were a major cause of impact for both TMRs for fuel-related impact categories. For both TMRs, the main contributors to natural resource depletion and freshwater ecotoxicity were trellis system installation and background heavy metal emissions, respectively.</p><p style="text-align: justify;"><strong>Conclusion</strong>: This study shows that the studied organic TMR has higher impact scores than the integrated TMR for all the chosen impact categories except eutrophication. However, the chosen TMRs are only typical of integrated and organic viticulture in Loire Valley and some emission models (heavy metal, fuel-related emissions, and nitrogen emissions) have to be improved in order to better assess the environmental impacts of viticulture. Soil quality should also be integrated to LCA results in viticulture because this lack may be a disadvantage for organic viticulture.</p><strong>Significance and impact of study</strong>: This study is among the first to compare LCA results of an integrated and an organic TMR.


Author(s):  
Manish Sakhlecha ◽  
Samir Bajpai ◽  
Rajesh Kumar Singh

Buildings consume major amount of energy as well as natural resources leading to negative environmental impacts like resource depletion and pollution. The current task for the construction sector is to develop an evaluation tool for rating of buildings based on their environmental impacts. There are various assessment tools and models developed by different agencies in different countries to evaluate building's effect on environment. Although these tools have been successfully used and implemented in the respective regions of their origin, the problems of application occur, especially during regional adaptation in other countries due to peculiarities associated with the specific geographic location, climatic conditions, construction methods and materials. India is a rapidly growing economy with exponential increase in housing sector. Impact assessment model for a residential building has been developed based on life cycle assessment (LCA) framework. The life cycle impact assessment score was obtained for a sample house considering fifteen combinations of materials paired with 100% thermal electricity and 70%-30% thermal-solar combination, applying normalization and weighting to the LCA results. The LCA score of portland slag cement with burnt clay red brick and 70%-30% thermal-solar combination (PSC+TS+RB) was found to have the best score and ordinary Portland cement with flyash brick and 100% thermal power (OPC+T+FAB) had the worst score, showing the scope for further improvement in LCA model to include positive scores for substitution of natural resources with industrial waste otherwise polluting the environment.


2019 ◽  
Vol 944 ◽  
pp. 1137-1143 ◽  
Author(s):  
Ke Wei Lu ◽  
Xian Zheng Gong ◽  
Bo Xue Sun ◽  
Qing Ding

Tungsten is an important strategic metal, widely used in cemented carbide manufacturing, steel industry, and other economic fields. The amount of tungsten resource consumed in China each year accounts for more than 80% of the world’s annual total consumption. The purpose of this study is to quantify the environmental impact of tungsten production in China through the method of LCA. The result shows that, regarding the contributions of impact categories, the normalized value of HTP is the largest one among various impact categories, which accounts for 35.39% of the total environmental impact, followed by AP, PMFP, GWP, MDP, FDP, and POFP, respectively. The results also show that, regarding the contributions of production processes, smelting process is the largest contributor to the environmental burden of tungsten production due to the crystallization and calcination reduction occurred in the smelting process consumes a large amount of electricity, followed by mining, beneficiation, and transportation, respectively. The major academic contribution of this paper to the existing literatures is that we employed process-based analysis method, which could improve the accuracy of the study and provide practical advices for tungsten enterprises to reduce the environmental impact.


2019 ◽  
Vol 25 (2) ◽  
pp. 294-308 ◽  
Author(s):  
Lauran van Oers ◽  
Jeroen B. Guinée ◽  
Reinout Heijungs

Abstract Purpose In 1995, the original method for assessing the impact category abiotic resource depletion using abiotic depletion potentials (ADPs) was published. The ADP of a resource was defined as the ratio of the annual production and the square of the ultimate (crustal content based) reserve for the resource divided by the same ratio for a reference resource (antimony (Sb)). In 2002, ADPs were updated based on the most recent USGS annual production data. In addition, the impact category was sub-divided into two categories, using two sets of ADPs: the ADP for fossil fuels and the ADP for elements; in this article, we focus on the ADP for elements. Since then, ADP values have not been updated anymore despite the availability of updates of annual production data and also updates of crustal content data that constitute the basis of the ultimate reserves. Moreover, it was known that the coverage of elements by ADPs was incomplete. These three aspects together can affect relative ranking of abiotic resources based on the ADP. Furthermore, dealing with annually changing production data might have to be revisited by proposing new calculation procedures. Finally, category totals to calculate normalized indicator results have to be updated as well, because incomplete coverage of elements can lead to biased results. Methods We used updated reserve estimates and time series of production data from authoritative sources to calculate ADPs for different years. We also explored the use of several variations: moving averages and cumulative production data. We analyzed the patterns in ADP over time and the contribution by different elements in the category total. Furthermore, two case studies are carried out applying two different normalization reference areas (the EU 27 as normalization reference area and the world) for 2010. Results and discussion We present the results of the data updates and improved coverage. On top of this, new calculation procedures are proposed for ADPs, dealing with the annually changing production data. The case studies show that the improvements of data and calculation procedures will change the normalized indicator results of many case studies considerably, making ADP less sensitive for fluctuating production data in the future. Conclusions The update of ultimate reserve and production data and the revision of calculation procedures of ADPs and category totals have resulted in an improved, up-to-date, and more complete set of ADPs and a category total that better reflects the total resource depletion magnitude than before. An ADP based on the cumulative production overall years is most in line with the intent of the original ADP method. We further recommend to only use category totals based on production data for the same year as is used for the other (emission-based) impact categories.


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