Life cycle assessment of water mains and sewers

Ecological aspects have gained increasing attention during recent decades in urban land use planning and site development. However, relatively little attention has been paid so far to mass and energy flows of urban infrastructure and utility systems in particular, in spite of their significant contr...

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Bibliographic Details
Published in:Water science & technology. Water supply 2002-01, Vol.2 (4), p.51-72
Main Authors: Herz, R K, Lipkow, A
Format: Article
Language:English
Subjects:
Cohorts
Ecological monitoring
Land use
Land use management
Land use planning
Life cycle
Life cycle analysis
Life cycle assessment
Life cycle engineering
Life cycles
Mass
Rehabilitation
Service life
Sewers
Stock assessment
Submarine pipelines
Survival
Urban areas
Water mains
Water pipelines
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Summary:Ecological aspects have gained increasing attention during recent decades in urban land use planning and site development. However, relatively little attention has been paid so far to mass and energy flows of urban infrastructure and utility systems in particular, in spite of their significant contribution to the total mass. In the first part of this paper, the mass of water mains and sewers is quantified in relation to the mass of buildings. The second part of the paper deals with the development of the stock of water mains and sewers from the past to the future. Future rehabilitation needs in terms of annual mileage of pipelines reaching the end of their service life are forecast with a cohort survival model. In the third part of the paper, some preliminary results are presented on the mass and energy flows of water mains and sewers. Conventional life cycle assessment methodology is applied to pipelines of different materials.
ISSN:1606-9749
1607-0798
DOI:10.2166/ws.2002.0120