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Sharing is caring - the importance of capital goods when assessing environmental impacts from private and shared laundry systems in Sweden
The International Journal of Life Cycle Assessment ( IF 4.8 ) Pub Date : 2021-04-08 , DOI: 10.1007/s11367-021-01890-5
Erik Klint , Gregory Peters

Purpose

Previous studies on environmental impacts from domestic laundry have tended to focus solely on private washing machines and detergent. However, public procurement guidelines about the construction of laundry spaces may also be important. This article aims to expand the scope of previous work so that it also includes tumble drying and the building space. By doing this, we examine the potential for shared systems (which are common in Sweden) to reduce the environmental impacts of laundry activities, in comparison with consumer choices associated with machine operation (i.e., wash temperature and amount of detergent).

Methods

An LCA model was created using product information data from the European Union. Emissions from building use were taken from Swedish cradle-to-grave reports on energy-efficient buildings. The resulting model was run with additional sensitivity analysis of the variables, and the associated emissions from each of the scenarios were calculated.

Results and discussion

On average, greenhouse gas (GHG) emissions for private laundries in Sweden were estimated to be 190 g CO2 eq./kg laundry (washed and dried). If a shared laundry was used instead, the resulting emissions decreased by approximately 26%. The greatest contribution to GHG emissions was the use of detergent (22–33% of total emissions), followed by capital goods (11–38% of total emissions).

Conclusion

Deciding to construct shared laundries in newly built apartment buildings in Sweden, rather than in-unit machines, would reduce the emissions from domestic laundry for these tenants by approximately 26%. This is because materials used for manufacturing whitegoods, as well as the emissions associated with the building itself, play a much bigger role than previously thought. Additionally, since the cleaning efficiency of warm water and some of the components used in detergents rises with temperature, emissions from domestic laundering could for some consumers be reduced further by washing at higher temperature but with less detergent. This pattern could be seen in Sweden within regions with hard water, where the emissions from domestic laundry could be reduced by 6–12%.



中文翻译:

共享很重要-评估瑞典私人和共享洗衣系统对环境的影响时,资本货物的重要性

目的

以前关于家庭洗衣对环境的影响的研究往往只集中在私人洗衣机和洗涤剂上。但是,关于洗衣房建设的公共采购指南也可能很重要。本文旨在扩大以前的工作范围,使其包括滚筒烘干和建筑空间。通过这样做,与与机器操作相关的消费者选择(即洗涤温度和洗涤剂量)相比,我们研究了共享系统(在瑞典很常见)减少洗衣活动对环境的影响的潜力。

方法

使用来自欧盟的产品信息数据创建了LCA模型。建筑使用的排放量取自瑞典关于节能建筑的从摇篮到坟墓的报告。通过对变量进行额外的敏感性分析来运行所得模型,并计算每种情况下的相关排放。

结果与讨论

平均而言,瑞典私人洗衣房的温室气体(GHG)排放量估计为190 g CO 2 eq./kg衣物(洗涤和干燥)。如果改为使用共享衣物,则产生的排放量减少了约26%。对温室气体排放的最大贡献是使用清洁剂(占总排放量的22–33%),其次是资本货物(占总排放量的11–38%)。

结论

决定在瑞典新建的公寓楼而不是单元机中建造共享的洗衣房,将使这些租户的家庭洗衣产生的排放量减少约26%。这是因为用于制造白色家电的材料以及与建筑物本身相关的排放所起的作用比以前想象的要大得多。此外,由于温水和洗涤剂中使用的某些成分的清洁效率会随温度的升高而提高,因此可以通过在较高温度下进行洗涤但使用较少的洗涤剂来进一步减少某些家庭的家庭洗涤产生的排放。在瑞典有硬水的区域内可以看到这种模式,该区域的家用衣物排放量可以减少6–12%。

更新日期:2021-04-08
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