How to save water? What are the benefits of collecting and recycling rainwater effectively?

What are the benefits of rainwater harvesting and utilization?

1. Benefits of Rainwater Harvesting for Regional Ecological and Environmental Protection.Rainwater harvesting and utilization, including infiltration into underground reservoirs or geothermal wells, can effectively relieve local flood control and drainage pressure, and prevent disasters such as poor rainwater drainage and flooding caused by inadequate drainage facilities.It reduces peak runoff during rainy seasons, maintains river flow, and increases water evaporation, thereby improving the regional ecological environment and curbing environmental degradation.It also reduces or eliminates water accumulation on roads and in courtyards, improves the water environment of communities, and enhances the living ecological environment of urban residents.

2. Rainwater harvesting improves water resource utilization efficiency. Treated rainwater can be used as daily non-potable water for flushing, washing clothes, irrigating plants, and other purposes, so that drinking water no longer needs to be used for these applications. In addition, rainwater has low calcium content and is soft water, making it suitable for cooling water circulation. Rainwater harvesting is also applicable in industry, where it can be used for cleaning machinery, workshop sanitation, and other uses, reducing the consumption of drinking water in industrial production. It can also serve as municipal water for road cleaning, urban green space irrigation, and other public works.

3. Timely replenishment of surface water. Surface water is mostly replenished by rainwater harvesting, drinking water or raw water. The latter two methods are more costly than rainwater harvesting, and raw water replenishment may also pollute surface water. Using rainwater harvesting to replenish surface water resources is the most economical approach. 

4. Rainwater harvesting eases the pressure on urban flood control and drainage systems. Modular rainwater harvesting systems can store initial storm runoff and cushion peak flood flows, reducing the total volume of rainwater discharged into municipal pipe networks, rivers and lakes.

Only by maximizing the functions and economic benefits of rainwater can we truly “make meticulous and careful use of water resources”!