9. Asset management of wastewater networks
The policy of rehabilitating/renewing wastewater systems is still sometimes a minimal one, consisting of remedying the most obvious faults in wastewater systems, even in major urban centers.
However, this approach is taking increasingly sophisticated forms. The most elaborate and desirable of these is network asset management.
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The main aim of this approach is to limit the depreciation of the assets represented by the wastewater network. Because of its forward-looking nature, it is also a step in the right direction in the fight against :
against the presence of parasitic water in networks;
against groundwater pollution due to seepage.
This involves regularly scheduling the renewal of obsolete parts...
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Asset management of wastewater networks
Bibliography
Software tools
Software developed as part of the "Computer Aided REhabilitation of Sewer Networks" project, downloadable from the CARE-S project website:
Events
Pollutec in Paris every other year and in Lyons every other year.
Ville Sans Tranchée" exhibition organized by FSTT (France Sans Tranchées Technologies)
Standards
- Prescriptions générales pour les composants utilisés pour la rénovation et la réparation des branchements et des réseaux d'assainissement à l'extérieur des bâtiments. - AFNOR – Norme NF EN 13 380 - 2001
- Condition of drainage and sewage systems outside buildings – Part 2: Visual inspection coding system. - NF EN 13508-2 -
Regulatory texts
Arrêté du 22 juin 2007 relative à la collecte, au transport et au traitement des eaux usées des agglomérations d'assainissement ainsi que à la surveillance de leur fonctionnement et de leur efficacité, et aux dispositifs d'assainissement non collectif recevant une charge brute de pollution organique supérieure à 1,2 kg/j de DBO5.
Websites
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SYNCRA (Syndicat national des contrôleurs de réseaux d'assainissement - National union of wastewater network inspectors)
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FSTT (France sans tranchées technologies – formerly Comité français pour les...
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