A Comparative Life Cycle Assessment between landfilling and Co-Processing of waste from decommissioned Irish wind turbine blades
A Comparative Life Cycle Assessment between landfilling and Co-Processing of waste from decommissioned Irish wind turbine blades
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DOI：
10.1016/j.jclepro.2020.123321
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发表时间：
2020-12
影响因子：
11.1
通讯作者：
Angela J. Nagle;Emma L. Delaney;L. Bank;P. Leahy
中科院分区：
文献类型：
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作者：
Angela J. Nagle;Emma L. Delaney;L. Bank;P. Leahy
处理退役风力涡轮机叶片的复合废物将成为未来几年的一个主要问题。这项研究旨在通过使用生命周期评估来比较三种情景：德国的水泥窑协同处理、爱尔兰的协同处理和爱尔兰的垃圾填埋，以确定未来十年爱尔兰刀片垃圾最可持续的处理方法。这项研究的结果建立了一个基线影响情景，以与未来的再利用解决方案进行比较，这些解决方案在欧洲废物等级中处于较高的位置。联合处理目前还没有在爱尔兰进行，但随着刀片废物的增加，它很有可能变得可行。共处理利用切碎的刀片废料来替代熟料生产中的燃料和原材料，从而通过材料替代获得环境效益。比较生命周期评估用于确定哪种情景对环境的影响最小，以及哪种变量的影响最大。爱尔兰的联合加工被确定为影响最小的，因为材料替代和运输减少。研究发现，与增加爱尔兰和德国之间的运输相比，材料替代的影响更大。然而，人们对协同处理作为处理爱尔兰刀片废物的首选方法感到担忧，因为以这种方式处置的简便性可能会削弱重新利用的动力。未来需要进行研究，将协同处理的成本与其他重新利用的想法进行比较，并制定政策，要求农场所有者留出债券，为刀片废物更可持续的第二次生命选择买单。这将确保在爱尔兰共同处理的选项被忽略，转而使用更可持续的爱尔兰替代方案。
Dealing with composite waste from decommissioned wind turbine blades will become a major issue in the coming years. This study aims to determine the most sustainable disposal method for Irish blade waste in the next ten years by using life cycle assessment to compare three scenarios: Co-processing in cement kilns in Germany, co-processing in Ireland, and landfill in Ireland. The results of this study establish a baseline impact scenario with which to compare future repurposing solutions, which are higher on the European Waste Hierarchy. Co-processing is not carried out in Ireland at the moment, but as blade waste increases, there is a strong likelihood of it becoming viable. Co-processing utilizes shredded blade waste to replace fuel and raw materials in the production of clinker, whereby environmental gains are made through material substitution. Comparative Life Cycle Assessment is used to determine which scenario is the least environmentally impactful, and which of the variables has the strongest impact. Co-processing in Ireland is determined to be the least impactful, due to the material substitution and the reduced transport. Material substitution is found to have a stronger impact than increased transport between Ireland and Germany. There is, however, a concern with co-processing as a preferred method to dispose of Irish blade waste in that the ease of disposal in this fashion might de-incentivize repurposing. Future research is needed to compare the costs of co-processing to other repurposing ideas, and to develop policy that requires farm owners to set aside bonds to pay for more sustainable second life options for blade waste. This will ensure that the option of co-processing in Ireland is passed over for a more sustainable Irish alternative.