| Autor: |
OLAOYE, R. A., OGUNWOLE, A. O., ADIO, M. O., ADETORO, G. A. |
| Předmět: |
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| Zdroj: |
Annals of the Faculty of Engineering Hunedoara - International Journal of Engineering; Aug2021, Issue 3, p43-50, 8p |
| Abstrakt: |
Roof material, storage container and retention time are important considerations when designing a rainwater catchment system for present or future usage. This is because they affect the quality of the harvested rainwater which invariably affects the usage as potable or non- potable. In this study, two roof materials (galvanized steel and aluminium coated) was used as catchment surfaces for rainwater harvesting and stored in three different storage containers (clay, plastic and metal) for four weeks in the first instant in order to ascertain their quality against the Nigerian standard for Drinking Water Quality (NSDQW) and World Health Organization (WHO). Triplicate rainwater samples were collected and analysed for selected physicochemical, heavy metal and bacteriological parameters. Results obtained revealed that most of the physicochemical and selected heavy metal parameters of the analysed harvested rainwater were within the selected standards while the bacteriological parameters were above the permissible limits. Based on the results obtained it can be drawn that aluminium roofing coverage gave better result for harvesting rainwater compared to galvanized steel roof catchment. Among the various water storage containers used, plastic storage best preserves rainwater quality relatively. Harvested and stored rainwater does not meet the requirements for potable use. Harvested rainwater should be treated appropriately upon storage for any potable use. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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