As already mentioned, treated water can be reused in industrial processes. As a result, production costs will be lower, and this is always an important factor to take into account. This water can be reused for livestock, agriculture or gardening without any problem. Also, and provided that it has been treated using the appropriate methods, it can be used for human consumption.
Furthermore, during the wastewater treatment process, a large amount of biogas is generated that can be reused as fertilizer, fuel, or to generate electricity.