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Waste Management & Research
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Life cycle inventory analyses for five waste management options for discarded newspaper

Helena Dahlbo

Finnish Environment Institute, Helsinki, Finland, helena.dahlbo{at}ymparisto.fi

Sirkka Koskela

Finnish Environment Institute, Helsinki, Finland

Jari Laukka

Finnish Environment Institute, Helsinki, Finland

Tuuli Myllymaa

Finnish Environment Institute, Helsinki, Finland

Timo Jouttijärvi

Finnish Environment Institute, Helsinki, Finland

Matti Melanen

Finnish Environment Institute, Helsinki, Finland

Jyrki Tenhunen

Finnish Environment Institute, Helsinki, Finland

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.

Key Words: Life cycle inventory (LCI) • newspaper • waste • management • material recycling • energy recovery • landfilling • wmr 707-4

Waste Management & Research, Vol. 23, No. 4, 291-303 (2005)
DOI: 10.1177/0734242X05054713
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