The rapid increase in population, industrialization and urbanization has resulted in
increased demand for potable water for human consumption and other purposes. Over the years
several cases of climatic disasters (floods and erosions) had threatened the portable water supply
in the city, thus leaving rainwater harvesting as an alternative. This study assessed the current
state of rainwater harvesting in and around Ibadan metropolis captured through three different
roof catchment (galvanised iron, asbestos and aluminium) conveyed through the gutters and drain
pipes into a polyethylene storage device. Rainwater harvested through the direct open air method
was used as the control. In-situ tests were carried out after which samples were taken to the
laboratory for further analysis. The data obtained were recorded and compared with the World
Health Organization (WHO) standards. The results indicated that rain water harvested from
asbestos roofing sheets had the highest concentration of contaminants. The contaminants
concentration varied due to physical, chemical and environmental factors. The findings indicated
that the direct harvesting method remains the best type of rainwater harvesting.
Keywords: Rainwater harvesting, Physicochemical, Microbial, Roof material, Asbestos.
PAPER TITLE :EVALUATION OF QUALITY OF RAINWATER HARVESTED FROM DIFFERENT ROOF CATCHMENTS SYSTEMS
JOURNAL Of SUSTAINABLE TECHNOLOGY | VOLUME 7 NUMBER 1 2016
Paper Details
- Author(s) : OLUBANJO, O. O.
- Abstract:
