| Title: |
Measurements of infiltration rates in urban sewer systems: use of oxygen isotopes
|
| Resource Type: |
document --> technical publication --> proceedings / conference paper(s)
|
| Country: |
EU Projects
|
| Year of publication: |
2003 |
| Availability: |
De Benédittis J., Bertrand-Krajewski J.L. Measurements of infiltration rates in urban sewer systems: use of oxygen isotopes, WEM book 'Sewer systems and processes within urban water systems' (in press)
|
| Author 1/Producer: |
De Benédittis J.
|
| Other Authors/Producers: |
De Bénédittis J., Bertrand-Krajewski J.-L.
|
| Author / Producer Type: |
EC Project
|
|
EUGRIS Keyword(s): |
Water resources and their management -->Water resources and their management Overview
|
| Short description: |
Abstract The paper presents the principle of a method to measure infiltration rates in sewer
systems based on the use of oxygen isotopes and its application in Lyon (France).
Investigations in the urban area of Lyon benefit from the isotopic differences between
underground waters originating from the two rivers Rhône and Saône and from their
associated alluvial aquifers. The oxygen isotopic composition of the Rhône water is roughly 3
‰ lighter than that of the Saône river, due to the large differences in the mean altitude and
topographic situation of their catchments. Large amounts of water are pumped from the
Rhône aquifer for drinking water supply. As a consequence, this difference in the oxygen
isotopic composition between wastewater and local groundwater can be used to evaluate
infiltration in sewers in some parts of the city. The results obtained in a case study allow to
evaluate the reliability and the uncertainties of this method.
|
|
Submitted By:
|
Dr Stefan Gödeke WhoDoesWhat?
Last update: 14/02/2006
|
|
|
