Water reuse is the process of using water that has already been used for one purpose to be used for another. This can include using wastewater from homes, businesses, and industries to water parks, golf courses, farms, or other parts of the environment.
The benefits of this process are many-fold. It reduces our reliance on freshwater sources, which are dwindling in many parts of the world. It also reduces the amount of wastewater that needs to be treated before it can be released back into natural ecosystems. In addition, it saves energy and costs when compared with freshwater sources such as desalination plants or deep wells where you need to pump a lot more energy and money into getting those resources out of the ground and into your home or business.