APUSS Assessing infiltration and exfiltration on the performance of urban sewer systems

Country: EU Projects
Start Date:           Duration: 48 months         Project Type: RTD
Contract Number: EVK1-CT-2000-00072
Organisation Type:  EC Project
Topics: 
Contaminated land-->Soil and groundwater processes-->Modelling
Water and sanitation-->Pollution
Water and sanitation-->Water and sanitation Overview
Water and sanitation-->Water supply
Water resources and their management -->Stresses, quality and ecological status
Project objectives:
Sewer systems constitute a very significant patrimony in European cities. Their structural quality and functional efficiency are key parameters to guarantee 
the transfer of domestic and trade wastewater to treatment plants without infiltration or exfiltration. Infiltration of groundwater is particularly detrimental
to treatment plant efficiency, while exfiltration of wastewater can lead to groundwater contamination. Both problems are critical on a long term basis for
sustainable urban water management. This resarch project, associating universities, SMEs and municipalities in 7 European countries, will develop new
methods and techniques to assess and quantify infiltration and exfiltration in sewer systems. The methods will be tested and validated in different sewer
systems, from local to the whole catchment scale. Associated models and tools will be proposed for scaling up and for application and end-user decision support.
Project Summary:
In order to evaluate the performance of USS, public and private operators need appropriate methods and techniques. This research project, associating universities, 
SMEs and municipalities in 7 European countries, will develop new methods and techniques based on tracers (chemicals and/or natural radio-isotopes) to assess
and quantify infiltration and exfiltration in sewer systems, at different space scales (from the single pipe to the whole catchment) and under different conditions
(steady and dynamic groundwater levels, seasonal effects). The methods will be tested and validated in different catchments chosen in the associated cities,
under various conditions. Associated models (based on conceptual approaches for both steady and dynamic groundwater conditions) and tools (GIS and data
management software) will be proposed for scaling up and for application and end-user decision support. Complementary objectives consist to develop decision supports to help end users to assess the performance of their sewer systems and to choose investment
strategies accounting for economic value and necessary data
Achieved Objectives:

            
Product Descriptions:

            
Additional Information:

            
Project Resources:

Quantifying exfiltration from leaky sewers with artificial tracers

Possibilities of Assessing Extraneous Water (Möglichkeiten der Fremdwasserbestimmung)

Quantifying exfiltration with continuous dosing of artificial tracers

Wie dicht ist unser Kanalnetz?

Bilanzierung von Fremdwasser

Design of tests for quantifying sewer leakages by the QUEST-C method

Infiltration in sewer systems: comparison of measurement methods

Leaky sewers: Assessing the hydrology and impact of exfiltration in urban sewers

Classification system to estimate the leakage of sewers

Sewer losses and interactions with groundwater quality

Infiltration and Exfiltration from House Connections

Sewers as drainage systems - quantification of groundwater infiltration

Quantifying exfiltration from sewer systems with a novel tracer method

Stable isotopes of water as a natural tracer for infiltration into urban sewer systems

Measurements of infiltration in sewer systems: use of natural water isotopes

Assessing Exfiltration from sewers with dynamic analysis of tracer experiments

Experimental Studies of Sewer Exfiltration

Field Data to Estimate Infiltration into Sewer Systems

Dynamics of rain-induced pollutographs of solubles in sewers

Application of the leakage model to assess exfiltration

Measurements of infiltration rates in urban sewer systems: use of oxygen isotopes

Measurement of infiltration rates in urban sewer systems by use of oxygen isotopes

Sewer infiltration/exfiltration and interactions with sewer flows and groundwater quality

The influence of sewage solids and sewer sediments on rates of exfiltration from defects in sewers
Weblink:
http://www.insa-lyon.fr/Laboratoires/URGC-HU/apuss/
Funding Programme(s): 
EC Framework Programme 5
Link to Organisations:
Submitted by: EUGRIS Team Dr Stefan Gödeke  Who does what?  18/03/2005 10:20:00
Updated by: EUGRIS Team Professor Paul Bardos  Who does what?  28/09/2006 21:33:00