Proposal and assessment of rainwater haversting scenarios on the Javeriana University campus, Bogota

Globally, rainwater harvesting is becoming more important as a concept that can support urban sustainable development. The objective of this work was to assess the infrastructural requirements to use rainwater at the Pontificia Universidad Javeriana campus in Bogota, through an inventory of water uses, rainfall measurements of the study area and water quality assessment coupled to pipe hydraulics modeling. The proposed system allows supplying 14 % of the total use of non-potable water, which represents savings of 24.174.754 Colombian Pesos (COP) (12.723 USD). Due to a high initial investment of 694.967.383 COP (365.772 USD), the return of the investment is assessed as more than 30 years and the proposed rainwater harvesting system therefore has a low financial viability.