Rainwater harvesting
Rainwater harvesting (pronunciation: /ˈreɪnwɔːtər ˈhɑːrvɪstɪŋ/) is a technique used for collecting, storing, and using rainwater for landscape irrigation and other uses. The practice of rainwater harvesting is becoming increasingly popular due to its environmental and monetary benefits.
Etymology
The term "rainwater harvesting" is derived from the English words "rainwater", which refers to water that is precipitated from clouds as rain, and "harvesting", which means to gather or collect.
Techniques
Rainwater harvesting techniques vary widely, but they generally involve the collection of rainwater from a roof or other surface and storing it in a tank or barrel for later use. Some of the most common techniques include:
- Roof catchment systems: These systems collect rainwater directly from the roof of a building. The water is usually stored in a tank or barrel and can be used for irrigation, washing, or even drinking if properly treated.
- Surface runoff harvesting: In this method, rainwater is collected from the ground surface or from a specially prepared area of land. The water is then stored in a reservoir or tank for later use.
- Subsurface water storage: This technique involves the storage of rainwater underground. The water can be used for irrigation or other purposes.
Benefits
Rainwater harvesting has several benefits, including:
- Water conservation: By collecting and using rainwater, we can reduce our reliance on municipal water supplies and conserve this precious resource.
- Environmental sustainability: Rainwater harvesting helps to reduce the amount of stormwater runoff, which can cause erosion and water pollution.
- Cost savings: Using rainwater for non-potable uses can help to reduce water bills.
Related terms
External links
- Medical encyclopedia article on Rainwater harvesting
- Wikipedia's article - Rainwater harvesting
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