Title: Quantifying exfiltration from leaky sewers with artificial tracers 
Resource Type: document --> technical publication --> report 
Country: Switzerland 
Year: 2002 
Availability: Rieckermann J., Gujer W. Quantifying exfiltration from leaky sewers with artificial tracers, Conference Proceedings, Sewer Operations and Maintenance 2002- Bradford, UK, 26-28 November 2002, 8p. 
Author 1/Producer: Rieckermann, J., Gujer, W. 
Author / Producer Type: Professional / trade / industry associations, institutes or networks 
Report / download web link (=direct link): http://www.insa-lyon.fr/Laboratoires/URGC-HU/apuss/nrl_007_q ...  
Format (e.g. PDF): PDF 
EUGRIS Keyword(s): Water and sanitation-->Pollution
Water and sanitation-->Water and sanitation Overview
Short description: A novel approach to directly quantify exfiltration from leaky sewer systems is presented. The loss of wastewater is computed using a mass balance for an artificial tracer substance. The method is developed and tested and an application study for validation purposes is analysed. It is shown that the use of sodium chloride as a tracer implies certain drawbacks that mainly originate from the varying natural background concentrations. Problems concerning the experimental procedure and data analysis are identified and discussed. Further development of the method should concentrate on the assessment of the measurement uncertainty. 
Link to Project(s): APUSS Assessing infiltration and exfiltration on the performance of urban sewer systems
Submitted By: Dr Stefan Gödeke WhoDoesWhat?      Last update: 23/08/2009

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