How much drinking water can be saved by using rainwater harvesting on a large urban area? Application to Paris agglomeration

Ali Belmeziti 1 Olivier Coutard 2 Bernard De Gouvello 1
1 LEESU - laboratoire Eau, Environnement et Systèmes Urbains
2 LATTS - Laboratoire Techniques, Territoires et Sociétés
Abstract : This paper is based on a prospective scenario of development of rainwater harvesting (RWH) on a given large urban area (such as metropolitan area or region). In such a perspective, a new method is proposed to quantify the related potential of potable water savings (PPWS) indicator on this type of area by adapting the reference model usually used on the building level. The method is based on four setting-up principles: gathering (definition of buildings-types and municipalities-types), progressing (use of an intermediate level), increasing (choice of an upper estimation) and prioritizing (ranking the stakes of RWH). Its application to the Paris agglomeration shows that is possible to save up to 11% of the total current potable water through the use of RWH. It also shows that the residential sector offers the most important part because it holds two-thirds of the agglomeration PPWS. © IWA Publishing 2014
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Article dans une revue
Water Science and Technology, IWA Publishing, 2014, 70 (11), pp.1782-1788. 〈10.2166/wst.2014.269〉
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https://hal-enpc.archives-ouvertes.fr/hal-01238366
Contributeur : Frédérique Bordignon <>
Soumis le : vendredi 4 décembre 2015 - 16:55:28
Dernière modification le : jeudi 11 janvier 2018 - 06:19:09

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ENPC | ENPC-LEESU | LATTS | PARISTECH | AGROPARISTECH | UPEC-UPEM

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Ali Belmeziti, Olivier Coutard, Bernard De Gouvello. How much drinking water can be saved by using rainwater harvesting on a large urban area? Application to Paris agglomeration. Water Science and Technology, IWA Publishing, 2014, 70 (11), pp.1782-1788. 〈10.2166/wst.2014.269〉. 〈hal-01238366〉

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