A mature and large-capacity water purification system consumes quite a lot of resources. The photocatalytic purification system uses ultraviolet rays and photocatalysts in sunlight to treat polluted water. The whole process is divided into two core parts. First, the water is mixed into the zeolite containing TiO2. , And then exposed to strong ultraviolet light, so that the toxic and harmful substances in the water are decomposed, and then a large flow of water can be purified at a very fast speed. The entire system is suitable for small communities in the countryside.