Abstract
The performance of onsite rainwater harvesting (RWH) system in Mediterranean climate was assessed. A stochastic model quantifying the necessary storage, as a function of rainfall (frequency, depth), roof area, residents' number, specific water use (toilet flushing, laundry) and the required efficiency was developed. Two performance indicators were calculated: Water saving efficiency (RSE) - proportion of water used supplied by the RWH system; and rainwater use efficiency (RUE) - proportion of rainwater actually used. The maximum storage capacity and WSE decreased with increasing number of residents for a given roof area, and with an increasing roof area for constant number of residents. For variable storage volume, RUE increased with increasing storage capacity and reached a maximum with an increase in residents' number and a decrease in the roof area. The model enables to determine WSE and RUE for specific storage volumes or to determine the desired WSE and calculate the necessary storage.
| Original language | English |
|---|---|
| Pages (from-to) | 1614-1623 |
| Number of pages | 10 |
| Journal | Water Science and Technology: Water Supply |
| Volume | 16 |
| Issue number | 6 |
| DOIs | |
| State | Published - Dec 2016 |
Keywords
- Alternative water source
- Mediterranean climate
- Rainwater harvesting
- Stochastic modelling
- Water saving
All Science Journal Classification (ASJC) codes
- Water Science and Technology
