Abstract
![CDATA[A rainwater harvesting system (RWHS) is the most popular alternative water supply system in many cities around the world. It has been found that a typical RWHS in an urban area can save 20%–60% of mains water depending on the local rainfall, roof size, number of occupants in the house, and types of water use. To estimate an appropriate size of a rainwater tank for a given application, a rainwater tank model should ideally be adopted, which considers local rainfall, roof area, and water demand data to determine an appropriate tank size. However, for general purposes, standard local council guidelines may be used to select an appropriate tank size. For example, in Sydney, Australia, for a detached house with 4 people, if rainwater is to be used for toilet flushing, washing clothes, and moderate gardening, a 5-kL tank may be adopted. In general, water from an RWHS can safely be used for nonpotable purposes. However, it is not recommended to drink water from an RWHS without treatment, in particular for people who fall in immuno-compromised groups (e.g., children, old people, and cancer patients). A RWHS must be maintained regularly if the water is to be consumed by human beings.]]
Original language | English |
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Title of host publication | Urban Water Reuse Handbook |
Editors | Saeid Eslamian |
Place of Publication | U.S. |
Publisher | CRC Press |
Pages | 805-814 |
Number of pages | 10 |
ISBN (Electronic) | 9781482229158 |
ISBN (Print) | 9781482229141 |
Publication status | Published - 2016 |
Keywords
- rainwater
- storage
- water conservation