基于LCIA的洗碗机多目标环境影响评价

The multi-objective impact assessment of the dishwashers based on LCIA

引入多目标评价的思想,利用AHP(层次分析)方法对洗碗机生命周期环境影响进行评价。突破了传统的只注重危害性(单位环境影响负荷)单一目标的评价方法,综合考虑各环境影响类型的危害性目标及处理难易程度目标。在设计阶段,应遵循危害大且难于处理的环境影响应最优先考虑(比如温室气体),危害小且易于处理的环境影响应最少考虑的原则,通过AHP方法对一款典型洗碗机的各环境影响进行综合评价,最终得出该款洗碗机各环境影响综合重要度排序及总的综合环境影响指数,以支持设计阶段的方案选择。

The introduction of multi-objective evaluation of the idea, use AHP method to evaluate the life-cycle impact. Break the traditional method that only focus on single objective of harmfulness. This paper comprehensive consider the targets of harmfulness and the difficulty of dealing with the harmfulness. Following the principle of the environmental impact that more harmful and difficult to deal with should be top priority, the environmental impact that less harmful and easy to deal with should be least Consideration, Finally, a typical dishwasher is evaluated synthetically via AHP, Ultimately, get the sequence of environment complex impact significant degree, and the total index of environment complex impact of the dishwasher.