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Potential of rainwater resources based on urban and social aspects in Colombia

2012, WATER AND ENVIRONMENT JOURNAL - ISSN: 1747-6585 - DOI 10.1111/j.1747-6593.2012.00316.x

Autors de l'ICTA:
Tito Morales Pinzón, Joan Rieradevall i Pons

Tots els autors:
Tito Morales-Pinzón, Joan Rieradevall, Carles M. Gasol & Xavier Gabarrell

The potential offered by non-conventional water resources (rainwater) associated
with high or low urban density in new housing in different rainfall zones (800–
2300 mm) was studied. Ten cities in Colombia with over 250 000 inhabitants were
used as a case study. The potential of substitution of tap water by rainwater according
to population groups with different socioeconomic status was estimated. This
study reveals the favourable conditions for rainwater harvesting in the Colombian
context, and enables the linking of supply and demand issues related to local
climatic and environmental sustainability in order to integrate the use of rainwater
into urban housing projects. For the current consumption scenario (greater than
160 Lcd), rainwater becomes a potential replacement for mains water in urban
areas with rainfall of above 1553 L/m2/year.

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