With the rapid development of economy and the acceleration of urbanization

　With the rapid development of economy and the acceleration of urbanization, water shortage and water environment deterioration are becoming more and more prominent. In this context, Shandong water reuse technology came into being and became an important way to solve water resource problems.

　　Shandong water reuse refers to deep treatment of urban sewage or industrial wastewater to remove pollutants, so that it meets or exceeds the national standards for miscellaneous water use, and then reuses it in industrial production, urban greening, landscape water use and other fields. The implementation of this technology can not only effectively alleviate the problem of water shortage in Shandong Province, but also reduce wastewater discharge, protect the water environment, and promote the sustainable use of water resources.

　　Specifically, Shandong's water reuse has the following important significance:

　　Save water resources: By reusing reclaimed water, the exploitation and use of freshwater resources such as groundwater and surface water can be greatly reduced, thereby effectively saving water resources.

　　Protect the water environment: Recycling of reclaimed water can reduce wastewater discharge, reduce pollution to rivers, lakes and other water bodies, and protect the ecological balance of the water environment.

　　Promoting sustainable economic development: Recycled water reuse can reduce the water cost of enterprises and improve the utilization efficiency of water resources, thus creating more economic benefits for enterprises. At the same time, recycled water reuse can also promote the recycling of water resources and promote the sustainable development of the economy and society.

　　The technical principle of Shandong water reuse mainly includes wastewater collection, pre-treatment, biological treatment, deep treatment and water reuse. Through this series of treatment processes, wastewater can be converted into high-quality water to meet the water needs of different fields.

　　At present, Shandong's recycled water reuse has been widely used in industrial production, urban greening, landscape water use and other fields. For example, in industrial production, recycled water can be used for cooling circulating water, boiler feed water, etc.; in urban greening, recycled water can be used to irrigate lawns and trees, etc.; in landscape water use, recycled water can be used to replenish water for park lakes, fountains and other landscapes.

　　In short, the implementation of Shandong's reclaimed water reuse technology is of great significance for promoting the sustainable use of water resources, protecting the water environment, and promoting the sustainable development of the economy and society. With the continuous advancement of technology and the continuous expansion of application areas, Shandong's reclaimed water reuse technology will play a more important role in water resource management and environmental protection.