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Life cycle inventory analyses for five waste management options for discarded newspaper

机译：废弃报纸的五种废物管理选项的生命周期清单分析

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摘要

This paper presents the results of life cycle inventory (LCI) analyses that were carried out to determine the environmental impacts (emissions, resource extractions and land use) of different newspaper waste management options for the Helsinki Metropolitan Area (HMA). LCI analyses were performed for five product systems, in which discarded newspapers were divided into two streams: separately collected newspapers and newspapers in mixed waste. In all the options, the manufacturing and printing processes of newspaper were kept unchanged. The waste management alternatives included combinations of material recycling, energy recovery and landfilling. These product systems were modelled using the current collection rate of newspaper and four additional collection rates. The LCIs of the product systems showed that the life cycle phase causing the most environmental impacts was the paper mill. When comparing the different waste management systems, the energy recovery options were in general superior to landfilling. The ecological implications of the increased energy recovery and decreased material recycling of newspaper were, however, not yet considered in the study. These aspects were assessed in the life cycle impact assessment (LCIA), which was performed after the LCI phase.
机译：本文介绍了生命周期清单（LCI）分析的结果，旨在确定赫尔辛基都会区（HMA）不同报纸废物管理方案对环境的影响（排放，资源提取和土地使用）。对五个产品系统进行了LCI分析，其中将废弃的报纸分为两类：分别收集的报纸和混合废料的报纸。在所有选项中，报纸的制造和印刷过程均保持不变。废物管理的替代方案包括材料回收，能源回收和填埋的组合。这些产品系统使用当前的报纸收集率和四个其他收集率进行建模。产品系统的LCI显示，对环境造成最大影响的生命周期阶段是造纸厂。当比较不同的废物管理系统时，能量回收选项通常优于垃圾填埋场。但是，这项研究尚未考虑增加能源回收和减少报纸材料回收的生态影响。这些方面在生命周期影响评估（LCIA）中进行了评估，该评估在LCI阶段之后进行。

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