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Evaluation of sewerage systems in Central Europe using Poland as an example

Congress: 2008
Author(s): Dąbrowski W.*, Sveinung S.**, Zielina M.*
*Cracow University of Technology 24 Warszawska Street, 31-155 Krakow, Poland tel. +48-12-6282551, fax. +48-12-6282042 email: wdabrow@usk.pk.edu.pl **SINTEF, Dept. Water and Wastewater, Klæbuveien 153, NO-7465 Trondheim, Norway, e-mail: sveinun

Keyword(s): pipes rehabilitation, trenchless technologies
AbstractEvaluation of sewerage systems in Central Europe using Poland as an example Dąbrowski W.*, Sveinung S.**, Zielina M.* Cracow University of Technology 24 Warszawska Street, 31-155 Krakow, Poland tel. +48-12-6282551, fax. +48-12-6282042 email: wdabrow@usk.pk.edu.pl **SINTEF, Dept. Water and Wastewater, Klæbuveien 153, NO-7465 Trondheim, Norway, e-mail: sveinung.sagrov@sintef.no Oral Congress Sub-themes 1. Development of water resources and infrastructure - Data, monitoring and information technology Abstract Performance of Polish sewerage systems and their structural strength were briefly described using two different sources of data. First previously published papers, thesis and reports from TV inspections done for selecting renovation technologies were used. These files of data were useful in predicting the most commonly reported failures resulting from inappropriate materials use for local conditions of sewers operation. However, in general they may not be applied for evaluation of structural strength of sewers in the country, or in a given community, because a request for this kind of inspection was undertaken only when some serious functional failing had been reported. The second bank of data resulted from regular TV inspections done “sewer by sewer” in a given community. Such a set of data was recognized to be much more representative for a given location , but less informative about commonly made construction mistakes. The third bank of data resulted from published summaries of newly constructed sewers surveying done before accepting them as satisfying both standards and terms of tenders, so being able to operate properly. Very often this is the only available kind of information for PVC, PE and PP sewers, which has not been applied widely for longer that the last decade. Most recently developed standards for Polish sewers survey and grading were compared with other systems functioning in Germany, GB, Holland, Canada and others such as these developed by IWA. Comparisons of failures and reliability of sewers made of different materials and being of the same age were done.
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