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| Titre : |
Life-cycle energy and CO2 analysis of stormwater treatment devices
|
| in | Water Science and Technology , Vol. 58 n° 5, 07/10/2008 |
| Auteur(s) : | R.M. Andrew |
| Type de document : | Article |
| Sujets : | énergie du cycle de vie ; traitement des eaux de pluie ; filtration de sable ; filtration sur roseaux Dioxyde de carbone NEW ZELAND |
| Résumé : |
This paper reports a pilot study that employs LCA to compare life-cycle energy requirements and CO2 emissions of two stormwater devices in New Zeland. The two devices are a raingarden servicing an urban feeder road, and a sand filter that could have been installed in its stead. With an assumed life-time of 50 years, the life-cycle energy requirements of the built raingarden were almost 20% less than for the sand filter, while the CO2 emissions were 30% less. Our analysis shows that given the difference between the infiltration rates used in the raingarden design (0.3 m/day) and measured during monitoring (3 m/day) there was potential to make significantly greater life-time savings using a smaller design for the raingarden that would have also met the treatment efficiency expectations.[...]
This paper reports a pilot study that employs LCA to compare life-cycle energy requirements and CO2 emissions of two stormwater devices in New Zeland. The two devices are a raingarden servicing an urban feeder road, and a sand filter that could have been installed in its stead. With an assumed life-time of 50 years, the life-cycle energy requirements of the built raingarden were almost 20% less than for the sand filter, while the CO2 emissions were 30% less. Our analysis shows that given the difference between the infiltration rates used in the raingarden design (0.3 m/day) and measured during monitoring (3 m/day) there was potential to make significantly greater life-time savings using a smaller design for the raingarden that would have also met the treatment efficiency expectations. The analysis highlights the significant contribution of transportation-of both materials and staff-andongoing maintenance to a treatment device's life-cycle energy and CO2 |
| Article en page(s) : | 985 - 993 |
| Langue(s) : | Anglais |
| Lien vers la notice : | https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=136307 |
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