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首页> 外文期刊>Waste Management >Environmental analysis of a construction and demolition waste recycling plant in Portugal - Part II: Environmental sensitivity analysis
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Environmental analysis of a construction and demolition waste recycling plant in Portugal - Part II: Environmental sensitivity analysis

机译：葡萄牙某建筑拆迁废料回收厂的环境分析-第二部分：环境敏感性分析

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摘要

Part I of this study deals with the primary energy consumption and CO_2eq emissions of a 350 tonnes/h construction and demolition waste (CDW) recycling facility, taking into account incorporated, operation and transportation impacts. It concludes that the generated impacts are mostly concentrated in operation and transportation, and that the impacts prevented through material recycling can be up to one order of magnitude greater than those generated. However, the conditions considered for the plant's operation and related transportation system may, and very likely will, vary in the near future, which will affect its environmental performance. This performance is particularly affected by the plant's installed capacity, transportation fuel and input CDW mass. In spite of the variations in overall primary energy and CO_2eq balances, the prevented impacts are always higher than the generated impacts, at least by a factor of three and maybe even as high as 16 times in particular conditions. The analysis indicates environmental performance for variations in single parameters, except for the plant's capacity, which was considered to vary simultaneously with all the others. Extreme best and worst scenarios were also generated to fit the results into extreme limits.
机译：本研究的第一部分研究了350吨/小时建筑和拆除废物（CDW）回收设施的一次能源消耗和CO_2eq排放，并考虑了合并，运营和运输方面的影响。结论是，所产生的影响主要集中在运营和运输中，并且通过材料回收避免的影响可能比所产生的影响大一个数量级。但是，工厂运行和相关运输系统所考虑的条件在不久的将来可能并且很可能会发生变化，这将影响其环境绩效。该性能特别受工厂的装机容量，运输燃料和输入CDW质量的影响。尽管总体一次能源和CO_2eq平衡有所变化，但在特定条件下，预防的影响始终比所产生的影响高至少三倍，甚至高达16倍。分析表明，除了工厂的产能（单个工厂的产能与其他所有产能同时发生变化）外，单个参数的变化所带来的环境绩效。还生成了极端的最佳和最差场景，以使结果适合极端极限。

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